(Source: Flora Malesiana ser. 1, 1: Cyclopaedia of collectors)

(Source: Flora Malesiana ser. 1, 5: Cyclopaedia of collectors, Supplement I)

(Source: Flora Malesiana ser. 1, 8: Cyclopaedia of collectors, Supplement II)

Born: 1901, Utrecht, Holland.

career:

Botanist, educated at Utrecht University, where he took his Ph.Dr’s degree in 1927; towards the end of the latter year he went to Java as Assistant at the Buitenzorg Herbarium; high official for the organization of the ‘Flora Malesiana’; since Aug. 1946 stationed in Holland. From Dec. 1949-Nov. 1950 he stayed at Bogor once more. Since 1950 Director of Flora Malesiana Foundation. In 1951 he was appointed Professor of Tropical Botany and Plant Geography on behalf of the Tropical Institute in Amsterdam; in 1953 also at Leiden.

In 1959 he was awarded a honorary Dr’s degree at the University de Montreal. From 1962-72 Director of the Rijksherbarium, Leiden.

He is the author of many taxonomic, plantgeographical, and other papers, relating to the flora of Malaysia.¹

J.J. Smith named some orchids after him, and he is commemorated besides in Eurya steenisii de Wit.

The genus Steenisia Bakh.f. was named after him.

Collecting localities:

1927. P. Weh, N of Sumatra: pr. Sabang (Dec. 6); W. Java: Tjigombong (Dec. 18); slopes G. Salak above Waroengloa (Dec.).-1928. From Tjitjoeroeg to G. Perbakti and the crater fields of G. Salak (Jan. 8); many times at Buitenzorg and in the vicinity; Tjilintjing, E of Tandjong Priok (Febr. 26). Expedition to the Anambas & Natoena Islands (partly with Henderson, see there):² P. Siantan (March 29-Apr. 6), near Terempa, etc., and visiting P. Tandjoeng Soeka (Apr. 3); P. Sedanau (Genting) (Apr. 7-8); Boengoeran (= Groot Natoena), kp. Ranai and G. Ranai (Apr. 9-15; summit on the 15th); P. Sedanau (Genting) (17). W. Java: Tjiboerial (May 6); Sitoegoenoeng (June 24); Bandoeng, near Lembang, Dago, etc. (end of May); Tjiboerial (July 7); Tjipanas-Tjibodas (July 16), Tjibodas and slopes G. Gedeh (17-26),³ summit G. Gedeh (22), G. Pangrango (23), and Geger Bintang (26); Bolang (Aug. 26); from Buitenzorg in the direction of G. Pantjar (Sept. 16); Megamendoeng, Tjièsèk (Sept. 23); G. Pantjar (Oct. 27-31) with W.M. Docters van Leeuwen, collecting at kp. Karangtengah, G. Paniisan and G. Liiang; Tapos (Nov. 4); Centr. Java: Djokja station and Walikoekoen (Dec. 23); E. Java: Poenten (Dec. 24-Jan. 3), making trips to Djoengo (28), Tjobanrondo near Poedjon (30).-1929. Poenten ( -Jan. 3), in the vicinity and on G. Dorowati and Koekoesan (Jan. 2); from Pasoeroean in eastern direction, G. Bentar and G. Loeroes (4); W. Java: G. Tjibodas (Jan. 13);⁴ SW of Leuwiliang, Poerasèda, Nangèla (Febr. 2-5; with Bakhuizen van den Brink Sr and Docters van Leeuwen);⁵ Tjigombong (Febr. 24); Meester Cornelis (March 3); Depok (March 14); Tjitajam; Tjibodas (slope G. Gedeh) (May 5); Wijnkoops Bay, Karang Hawoe (May 9); Tandjong Prick harbourground (May 13); Tjibodas-G. Gedeh (aloen-aloen) (June 2-3); dessa Kemang (July 7); Tjiapoes (July 28); G. Salak above Waroengloa (Aug. 2); Tjibinoeng (Aug. 28, Sept. 9);⁶ Tjampea (Sept.). Trip to S. Sumatra, Benkoelen:⁷ Kroei (Oct. 25); Danau (= Lake) Ranau, staying at Banding Agoeng (Oct. 25-Nov. 15), from where making trips to the coffee plantation Aeroebi and djoerang (= ravine) (Oct. 26), E of Soerabaja to Tandjoengsari (28), Talangtotong forest between Sepatoehoe and Simpang (29), foot G. Pakiwang (30, 31), G. Raja (Nov. 2), G. Pesagi (3-5; ascending from Raja, descending to Oedjoeng and Aer Semangka), G. Pakiwang (7), at the back of Sepatoehoe (8), summit G. Pakiwang (9), Aer Telanai cleft near Banding (10), S. slope G. Seminoeng (12); Martapoera station (16). W. Java: Tjiboerial (Dec. 21); G. Boender and crater G. Salak (Dec. 25-26).-1930. Tjisoeroepan (Jan. 19), E. side G. Papandajan (20 Tegal Aloen Aloen and Tegal Boengbroeng (21), summit G. Papandajan (22), Tjisoeroepan (23); G. Salak above Waroengloa (March 24); G. Papandajan (March 28-31),⁸ visiting most of the ‘tegals’, including Tegal Pandjang, Tegal Marioek and Tegal Kembang; Poentjak Pass with Telagasaät and Telagawarna (Apr. 6);⁹ Tjisaroea Zuid (= South) (May 18);¹⁰ Tjiboerial (May 25); G. Patoeha:¹¹ Telaga Patengan (June 7), Patoehawati (8), Kawah Poetih (8), and swamp along the road (9); Tjisaroea Zuid (July 6); P. Dapoer, bay of Batavia (July 12-14);¹² Koeripan (July 20); Centr. Java: Diëng Plateau (Aug. 5-10),¹³ collecting at Telaga Tjebong (5), Telaga Balekambang (5), Telaga Pengilon (6), Telaga Warna (6), Tegal Pangonan (6), Kawah Sileri (7), swamp near kali Dolog (7), Telaga Dringoe (7), near kp. Siglagah, Kali Poetih Valley (8), Telaga Teroes (8), Telaga Loewoe (8), G. Prahoe (9), near kp. Diëng and kp. Siteroes (10); W. Java: lake of Tjilodong (Sept. 28); Tjibodas-G. Gedeh-Pangrango (Nov. 2-9); Depok ( ? Nov. 9); G. Tjibodas (Dec. 7); trip by car with Booberg from Batavia to Priok, Serang, along the W. coast of Bantam to Tjiboengoer (Dec. 31-Jan. 1, 1931).-1931. Proceeding (see sub 1930) to Pelaboehan Ratoe (S. coast) and W of the mouth of the Tjikarang near pier Tjiletoeh Estate (Tjitèspong) (Jan. 3); Telagasaät (March 1); Tjikampek (Apr. 11-12); G. Papandajan (May 12-18),¹⁴ collecting on the ‘tegals’ etc.; Sitoegoenoeng (June 14); Tjibodas-Tjibeureum (July 7-21), making a trip to Geger Proet (between Geger Bintang and Pangrango) (18); Bolang (July 26); G. Salak I (Aug. 2-3); G. Pawon near Padalarang (Sept. 25).-1932. Tjianten Fall (Jan. 31); Depok (March 6); Salak cleft, Tjiapoes (July 31); Tjitajam (Aug. 28); Tjisaroea (Sept. 1-13), at Tjoeroeg Tjibogo, G. Semboeng, G. Mas, Mandalawangi, etc.-1933. Tjibodas (slope G. Gedeh) (Apr. 13-20); G. Boender (May 21); Tjitjadas, Sitoe Pelahlar, etc. (May 25); G. Kanaga (Krawang) (June 11);¹⁵ swamp forest of Tjitjadas (June 18);¹⁶ G. Aseupan (July 7);¹⁵ G. Bèsèr, N of Tjiandjoer-Patjet (Sept. 3); Sindanglaja-Patjet (Sept. 4-9), collecting on the Ontbijtberg (= G. Kasoer etc.); G. Limo (Sept. 15);¹⁷ G. Baser (Sept. 17);¹⁸ Sitoe Goenoeng (Nov. 19).¹⁹ P. Weh, N of Sumatra: Anak Laoet etc. (Dec. 31). -1934. Trip in N. Sumatra:²⁰ by car from Kotaradja to Bireueun and Takengon (Aug. 27), collecting at Aloer Gloeng, W of the Goudberg and S of Sigh; sojourn at Takengon (Aug. 28-Sept. 7), collecting at Boer ni Gentella (Aug. 29), Lake Takengon (= Laoet Tawar) (30), Boer ni Bias (31), Boer ni Lintang (Sept. 1), Boer ni Telong (2), Boer ni Poepandji and Laoet Poepandji (3), Boer ni Geredong (3-5), S. side of the lake near Oneng (7); Takengon-Lho Seumawhe (8); Lho Seumawhe and Lho Soekoen (9). W. Java: Tjisaroea (Oct. 21); Koeripan (Nov. 12); Tapos (Dec. 26).²¹-1935. W. Java: Indramajoe Regency, S of Ploso kerep (March 3-4);²² Antjol, W of Batavia (March 9); G. Papandajan from Tjileuleuj (Apr. 12-14) ;²³ P. Haarlem, Bay of Batavia (Apr. 28).²⁴ Trip to E. Java:²⁵ G. Ardjoeno-Welirang (June 3-7), e.g. at Lalidjiwo (3), G. Welirang and Kembar II (4), summit Ardjoeno (5), G. Kembar I (6), descending the S. slope of Ardjoeno to Djoengo (7); Bangil, G. Baoeng (9); G. Tengger (June 10), Zandzee, Roedjak, Ider Ider, Moengal Pass; Ranoe Pani (Smeroe) (11), at Telaga Regoelo, G. Dempo, Rawa Dringoe, Ajek Ajek; Ranoe Pani-Gondang Boerno (SE. slope Smeroe) (12); Ranoe Daroengan (S. Smeroe) (13); Besoek Bening (14). W. Java: G. Limo (Sept. 29); Tapos (Dec. 15); staying at Tjipadaroeoem (G. Patoeha) (Dec. 25-30), collecting at Rantja Tjibodas (25), Tamansaät (26), Sitoe Arsidin (27), Kawah Tjiwedeh (28), Telaga Patengan-Rantja Oepas-Tji Oleh Oleh-Rantja Walini-Rantja Bali (30).-1936. W. Java: Indramajoe Regency, Plosokerep (Jan. 4, March 15-16).²⁶ Trip to Bali (collecting some plants on the way thither, Ma^,rch 31, in E. Java) (Apr. 1-12):²⁷ Gilimanoek (W. Bali) and forest near Tjekik (1), Prapatagoeng, NW. peninsula (2), Poeloekan (S. Bali) (3), Tedjakoela (N. coast, 4), Gitgit (5), G. Agoeng from Moentjan (5-7, climbing the summit on the 7th); Kintamani, Lake Batoer, lava fields (8); G. Abang (9); Den Passar, and proceeding to Lake Bratan and Bedoegoel (10-12). W. Java: Indramajoe, Plosokerep (May 3, with van Slooten); Megamendoeng (May 30); Tjitjadas (June 1); Goeha Gadjah (Kelapa Noenggal) (July 4 and 11);²⁸ G. Aseupan (Sept. 13); Tjibodas (G. Gedeh) (Oct. 10-18); G. Salak VI (Dec. 26).-1937. Losir Expedition to N. Sumatra :²⁹ sailing from Priok (Jan. 16); Singapore (18); Medan (19); by car to Kota Tjané (20) and from there a 3-day march to Blang Kedjeren in the Gajoe Lands; Blang Kedjeren-Penosan-bivouac I G. Losir (2350 m) (27); bivouac I-summit Poetjoek Angasan (2700 m)-bivouac II (2120 m) (28); crossing the watershed (2400 m), descent to the Lau Alas, and bivouac III above the Lau Alas (2240 m) (29); following the ridge of the watershed to bivouac IV (2740 m) (30); sharp crest of the last part of the watershed to Aloer bivouac V (2720 m) (31); large plateau under the central summit of the Losir, bivouac VI (3300 m) (Febr. 1-4), collecting on the central top (3500 m) (2), aloer (3), ridge to the western summit and bog-plateau round bivouac (4); via the central summit in the direction of the eastern summit to bivouac VII on a small ‘blang’ (5); from about 3000 m alt. following a burnt ridge descending to 1800 m (6-7), slope to the Lau Alas from bivouac VIII-IX (7); from the Lau Alas (1220 m)-crest Agoesan (2500 m) (8) and back to Blang Kedjeren; Blang Kedjeren-Gadjah (Febr. 15); Gadja-Oneng-Pendeng (16); Pendeng-Aer Poetih (17); ascent of Go Lemboeh to 1850 m (l8); bivouac at 3025 m (19-22), collecting on the summit (3044 m), in the ravine (aloer), etc.; descent to Moss bivouac (1850 m) (23); to Fall bivouac (600 m) (24); Aer Poetih-Pendeng (25); Pendeng-Gadjah (26); via the watershed (c. 1700 m)-Blang Kedjeren (27); Blang Kedjeren-Paloh-Kongke (March 4); Kongke-Goempang-bivouac I G. Kemiri (= Boer ni Geumpang) (1360 m) (5); bivouac I to 11 (2800 m) (6); bivouac II to summit G. Kemiri (3314 m) (7), collecting near the summit (7-9); descent to bivouac II (10); ditto to bivouac I (11); bivouac I-Kongke (12); Kongke-Paloh (13) and back to Blang Kedjeren; Sangir-bivouac I-II (March 19-20); Kapi solfatara fields, Paja (21); at 1500 m alt. (22); Pasir Lebar-Laoet Tiga Sagi (23); via Aer Panas back to the main road (24). Trip to SW. Celebes:³⁰ arrival at Makassar (June 12); during the first part of the trip the collecting was done by Eyma (see there), after the stay on the summit of Latimodjong Mts Eyma descended the other side of the mountain, while van Steenis and Steup descended the former trail; back to Rante Lemo via the Poka Pindjang (19); by car from Rante Lemo-Pasoei-Kalosi (20); Kalosi-Makale-Rante Pao-Todjamboe (21); Todjamboe-Palopo-Singkang (22); Singkang-Makassar (23); Malino (24); Bantimoeroeng (25). W. Java: G. Salak, Waroengloa (July 25); Bantam, Danau Swamp (Aug. 9-12);³¹ Wijnkoops Bay (Nov. 7);³² Batavia North, W of the ferry across kali Angkd (Nov. 21).-1938. Angkd (Febr. 14);³³ Megamendoeng (Apr. 10); Wanasari above Soekaboemi (12-17), climbing the S. slope of G. Gedeh (16). Trip to E. Java: Lake Klakah (July 10); G. Lamongan-Taroeb (11-12), descending to Rance Gedang, from there to Tiris and by car to Bermi (12); coffee estate Aer Dingin-Taman Hidoep (13); Djentor bivouac (2200 m), Jang Plateau (14-17), making trips to Selontjeng (2900 m) (15), G. Welirang and G. Argapoera (3088 m) (16), Toendjoeng (lakes , c. 1900 m) (17); descending via Sekassor to bivouac of Kali Djeloewang (18), and the E. slope of G. Jang to Soembertengga (19). W. Java: Tjikampek (July 25); P. Edam, Bay of Batavia (Aug. 28); Tjibodas (G. Gedeh) (Oct. 17-24), collecting near Tjibeureum, etc.; Doengoes Iwoel,³⁴ Djasinga Estate in Bantam (Dec. 18).-1939. Batavia, Tjilintjing and Angke with Prof. Burret (Apr. 23); Depok Nature Reserve (May 28); Telagawarna (May 29); P. Doe(w)a, Bay of Bantam (June 11); G. Telaga (watershed E of Poentjak) (June 25); Oedjoeng Genteng (S. coast) (June 29-July 2),³⁵ making trips to Tjitèspong, Tipar (1), Tjikepoeh (2), and on the way home on the banks of Kali Tjikarang (3); Tjibodas (Gedeh) (July 17-27); Salak N, (H)Ima Leutik (Aug. 20); Poentjak Pass, Telagawarna (Sept. 3); Salak crater (Sept. 17); Doengoes Iwoel, Bantam Res. (Sept. 30); Poentjak-Tjibodas (Oct. 1); Centr. Java: Pemalang (Oct. 15); G. Gadjah, S of Pemalang (16); Tjoeroeg Pengkawa, dessa Sikasor, Kali Pakoe near Randoedongkal (18); pass of Banjoemas-Pekalongan, above Belik (19); G. Slamat (N. slope and summit) (20-22); W. Java: Rawa Tjibitoeng, Rantja Gede near Kertasari, Priangan Res. (Oct. 24); G. Papandajan (25- . .); Poentjak-Rarahan-Geger Bintang-Tjibeureum-Tjibodas (Nov. 14); G. Telaga (Poentjak) and Telagawarna (Nov. 19); G. Telaga (Nov. 26); Tjibodas-Rarahan-Tjibeureum (Dec. 3).-1940. Batavia, Moeara Angké (Jan. 14); E. Java: Tampoewono above Lawang (Febr. 14-15); W. Java: above Poerasèda, S of Leuwiliang (March 3); G. Bèsèr near Patjet (March 10); Djasinga-Maribaja Forest Reserve (March 26). Trip to E. Java: Trètès, Popokanredjo (Apr. 16); G. Ardjoeno, Lalidjiwo (18), G. Kembar (19); G. Tengger, Tosari (20-23), Zandzee, Widodaren, and Klètak Pass; Penandjaän (24), Bermi; Taman Hidoep (Jang Plateau, 25); Bermi (26); Idjen Plateau, Sempol (Apr. 27-May 4),³⁶ collecting at the ‘Redjengans’ (28), Banjoepait (Djeding) (29), G. Tambak and Anjer (30), Kawah Idjen (May 1), G. Merapi (2), G. Pendil (3), G. Socket (4); Kalisat, Bondowoso (5). W. Java: Megamendoeng, above the Tjièsek Fall (May 30-31); G. Papandajan (June 30); foot Geger Bintang above Rarahan (Aug. 18); Tjitalahab near Bodjong Lopang, Djampang Tengah (Oct. 13); Telagawarna (Oct. 20); islands of Alkmaar and Purmerend (Oct. 27);³⁷ Tjibodas (G. Gedeh) (Nov.), trips to Geger Bintang, Tjibeureum, Rawa Derok, Rawa Gajonggong;³⁸ Kromong Hills, G. Tjeremai (= Tjareme, summit too) (Dec.); Centr. Java: environs of Blora, Rembang Res., on G. Lasem (Dec. 31), etc.-1941. Rembang Residency (early in Jan.); W. Java: G. Gedeh-Geger Bintang (Febr. 16); Linggadjati above Cheribon, collecting at Noenoek-Tjihaoer (S of Madja, ‘Het Stervende Land’) (Apr. 10-12); G. Ngoentjoeng between Tjampea and Koeripan (July 13); from 1 ma Leutik to G. Salak I (July 15-16); G. Toetoel near Buitenzorg (July 20); G. Gedeh, from Malèbèr Estate (Aug. 2-3); from Tjirarak-Tjisaroea to G. Halimoen (1930m) (Sept. 4-5); tertiary limestone hill near Tjibadak, and near Tjitalahab,³⁹ Djampang Tengah (Sept. 16); Tjisaroea Zuid (Sept. 20); Rawa Tembagah near Krandii (Bekasi) (Sept. 28); Depok Nature Reserve (Oct. 5); N and S of Tangerang and Solear near Tjisoka (Oct. 10); Poentjak, Telagawarna (Oct. 12); G. Mas Estate, Poentjak (Nov. 16); G. Njoentjoeng (643 m) and G. Tendjoleat (471 m), Tjipatat Estate, Bolang (Nov. 18); Tjitalahab, Djampang Tengah (Dec. 6).-1942. Tjimahi, Treinkampement (July); Depok Nature Reserve (Oct. 4).-1946. Buitenzorg Botanic Gardens; Batavia.-1950. W. Java: Tjisarua Zuid (Feb. 26); Tjengkareng between Tangerang and Djakarta (= Batavia) (March 19); G. Pangrango-Gedeh (28-29); P. Amsterdam in the Bay of Djakarta (Apr. 5); Tjisarua Zuid (9); G. Gedeh to Kandangbadak and back via Geger Proet, Tjibeureum, Tjibodas (May 28-29); S. coast, Wijnkoopsbay (June l1); and occasionally in Hort. Bog.-1953. W. Java: Tjibodas (Nov. 7), Bogor (12-14); Labuan: aerodrome (15); Luzon: Manila (20); Paranaque, Manila Bay (20); Manila and Quezon City (22), Los Baños and Mt Maquiling (c. 200 m), Laguna de Bay; along Kennon Road from Manila to Baguio (29); road Baguio-Bontoc (30); to Mt Polis (c. 2100-2300 m) (Dec. 1); Bontoc-Baguio (2); Mt Santo Tomas, near Baguio (c. 2000 m) (3). W. Timor: Kupang, vicinity of aerodrome (12); Port. Timor: Dili and vicinity (12), at Caicoli, Tibar Bay; near Monotuto, W of Dili (14); Port. E. Timor: limestone plateau of Baucau (c. 350 m) (15-16); escarpment between Baucau and Vemassi (c. 350-100 m) (17); plateau of Fuiloro (Lautem), site of Mehara (400 m) (18), and Muapitine (350 m) (19); S. coast near Lorè (20); Los Palos-Fuiloro (21); Uato-Carabao, riverbed Irabèrê (22); Centr. Port. Timor: Mt Perdido (ascent from Ossu, 700-1750 m) (23); from Ossu-Monotutu, N. coast (26); Dili (29) near the shore; Bessilau, S of Dili (Jan. 3, 1954); Ainaru, S of Tatamailau, 1000 m alt., and Huato-Builico, NW of Mt Tatamailau (1800-2150 m) (4); Mt Tatamailau, eucalypt forest up to 2950 m (5); S of Dili, Aileu, Maubisse, Bessilau, Nova Dili (6); Malay Peninsula: Johore, Aer Hitam, Negri Sembilan, Port Dickson (13); Forest Reserve Sg. Menyala, Sg. Lukut, and Telok (14); Kanching Forest Reserve (16); Fraser Hill (17).

collections:

Herb. Bog. [BO]: > 12000 nos, including a small amount collected by others and numbered in his series, viz nos 3052-3065 leg. Boedijn, nos 2950-2951 leg. van der Vecht, no 4438 leg. Ecoma Verstege, nos 5653-5679 leg. Kimah (see sub those collectors). Herb. Leiden [L]: dupl. from Java, Anambas, and Sumatra; Herb. Utrecht [U] (Java).

Of his more important collections the numbers run as follows: Anambas & Natoena Islands nos 677-1484; W. Java, Tjibodas-G. Gedeh-Pangrango (coll. 1928) nos 1806-2156; G. Pantjar nos 2283-2445; S. Sumatra nos 3107-3990 and 4440-4445: W. Java, G. Papandajan (coll. 1930-35) nos 4047-4159, 4161-4398,4766-4964, 6771-6804 and others in subsequent years; N. Sumatra (coll. 1934 , nos 5764-6599; W. Java, Indramajoe (coll. 1935-36) nos 6617-6764, 7469-7542, 8162-8219; G. Patoeha (coll. 1935) nos 6861-6999, 7412-7468; E. Java (coll. 1935) nos 7000-7411; Bali nos 7552-8161; N. Sumatra Losir Exp. 1937 nos 8266-10101 and 10293-94 phanerogams, and nos 10102-10292 cryptogams; SW. Celebes nos 10302-10447; E. Java (coll. 1938) nos 10631-11134; E. Java (coll. 1940) nos 11820-12194. The nos 5677-79 by mistake were used twice, viz for plants from Sitoegoenoeng, and for some leg. Kimah. The plants collected in 1941 were not chronologically numbered.

He brought living plants for Hort. Bog. from the Anambas & Natoena Islands, from N. Sumatra (1934), and from several minor trips in Java etc.

From Labuan (1953) nos 17855-17868, from Luzon (1953) nos 17869-17973, 18546-18576, from Timor (1953) nos 17974-18488, 18577-18686 (in Herb. Bog. [BO], Leiden [L], Brit. Mus. [BM], Lisbon [LISC]), from the Malay Peninsula (1953) nos 18489-18545. He collected besides in Australia (1950), in several localities in Europe, in Marocco (1954), and in Siam (1957).

literature:

(1) E.g.: ‘On the origin of the Malaysian mountain flora’ I-III (Bull. Jard. But. Buit. sér. 3, vol. 13, 1934, p. 135-262, 2 fig.; l.c. 13, 1935, p. 289-417; l.c. 14, 1936, p. 56-72); ‘Maleische vegetatieschetsen’ (Tijdschr. K.N.A.G. 52, 1935, p. 25-67, 2 fig., 1 coloured map, 4 fotos; l.c. p. 171-203, 363-398, 2 fig., 6 fotos); ‘Cycles of drought and reafforestation in the U.S.A. seen in the light of a new botanical hypothesis on the origin of deserts in general’ (Bull. Jard. But. Buit. sdr. 3, vol. 14, 1936, p. 50-55).

(2) C.G.G.J. van Steenis: ‘Botanical results of a trip to the Anambas and Natoena Islands’ (Bull. Jard. But. Buit. sér. 3, vol. 12, 1932, p. 151-211, 11 fig.; with ‘Notes on the vegetation of Djemadja’ by M.R. Henderson); cf. also Trop. Nat. 22, 1933, p. 113; and ‘Beklimming van den G. Ranai (op het eiland Boengoeran)’ (Meded. N.I. Ver. Bergsport no 13, 1936, p. 24).

cf. also sub Lit. 40.

(3) C.G.G.J. van Steenis: ‘Floristische indrukken van Tjibodas’ (Trop. Nat. 17, 1928, p. 199-207, fig. 1-7).

(4) C.G.G.J. van Steenis: ‘Schets van de flora van den G. Tjibodas bij Tjampea’ (Trop. Nat. 20, 1931, p. 79-82, 3 fig.).

(5) C.G.G.J. van Steenis: ‘Het geslacht Tristania op Java’ (Tectona 22, 1929, p. 1333-1341, 4 fig.).

(6) cf. report in Trop. Nat. 18, 1929, p. 211.

(7) C.G.G.J. van Steenis: ‘Treubia insignis Goeb. in Sumatra gevonden’ (Trop. Nat. 19, 1930, p. 213-215, 3 fig.); ‘Report of a botanical trip to the Ranau region, South Sumatra’ (Bull. Jard. But. Buit. sér. 3, vol. 13, 1933,p. 1-56, 11 fig., tab. 1).

(8) C.G.G.J. van Steenis: ‘Eenige belangrijke plantengeographische vondsten op den Papandajan’ I (Trop. Nat. 19, 1930, p. 73-91, 14 fig.); cf. also l.c. p. 51.

(9) C.G.G.J. van Steenis in l.c. 19, 1930, p. 106.

(10) cf. report in Trop. Nat. 19, 1930, p. 128, 2 fig.

(11) cf. ditto in l.c. p. 219-220.

(12) C.G.G.J. van Steenis: ‘Schets van de flora van bet eiland Dapoer (Duizend Eilanden)’ (Trop. Nat. 24, 1935, p. 31-34, 6 fig.).

(13) C.G.G.J. van Steenis: ‘Opmerkingen over het voorkomen van Polygonum plebejum op het Diëng Plateau’ (l.c. 21, 1932, p. 162-164, 4 fig.).

(14) C.G.G.J. van Steenis: ‘Polygonum vegetaties in de tropen’ (l.c. 20, 1931, p. 163, 1 fig.); ‘Enkele gegevens over het Natuurmonument Papandajan’ (N.I. Ver. t. Nat. Besch. Versl. for 1929/ 31, 1932, p. 77); ‘Eenige belangrijke plantengeographische vondsten op den Papandajan’ IlI (Trop. Nat. 21, 1932, p. 101-158, 8 fig.); ‘Fossiele bladafdrukken van den G. Papandajan’ (l.c. 21, 1932, p. 188-191, 4 fig.).

(15) C.G.G.J. van Steenis: ‘Enkele opmerkingen over het bergland aan de NW. zijde van den Sangaboewana (W. Java)’ (Trop. Nat. 23, 1934, p. 163-167, 4 fig.).

(16) C.G.G.J. van Steenis: ‘Het moerasboschje bij Tjitjadas, Res. Batavia’ (l.c. 23, 1934, p. 105-109, 5 fig.).

(17) cf. report in l.c. 22, 1933, p. 231-232, 1 fig.

(18) cf. ditto in l.c. 23, 1934, p. 19-20, 2 fig.

(19) cf. ditto in l.c. 23, 1934, p. 39-40, 2 fig.

(20) C.G.G.J. van Steenis: ‘Bergen en berg tochten in de Gajoe- en Alaslanden’ (Meded. N.I. Ver. Bergsport no 17, 1940, p. 2-14, 2 maps, 17 fotos).

(21) cf. report in Trop. Nat. 24, 1935, p. 72, 1 fig.

(22) C.G.G.J. van Steenis: ‘Iets over het landschap in Indramajoe, West Java’ (Gedenkb. Dr J.P. Thijsse, special number of the Levende Natuur July 25, 1935, p. 62-63, 2 fig.).

(23) C.G.G.J. van Steenis: ‘Eenige biologische waarnemingen op den Papandajan’ (Trop. Nat. 24, 1935, p. 141-147, 9 fig.).

(24) cf. report in Trop. Nat. 24, 1935, p. 121, 2 fig.

(25) C.G.G.J. van Steenis: ‘Aanteekeningen over een tocht naar Oost Java’ (Trop. Nat. 24, 1935, p. 122-123, 3 fig.); ‘Open air hothouses in the tropics at 3100 metres altitude’ (Gard. Bull. Str. Settlem. 9, 1935, p. 64-69, pl. 1); ‘Openluchtbroeikassen in de tropen op 3 100 m boven zee’ (Trop. Nat. 25, 1936, p. 37-44, 7 fig.).

(26) C.G.G.J. van Steenis: Voorstel voor een natuurmonument in Indramajoe’ (Versl. N.I. Ver. t. Nat. Besch. for 1935, 1935, p. 156-159, 2 fig.); ‘Landschap en flora van Indramajoe’ (Jubil. number Trop. Nat. Dec. 1936, p. 111-123, 21 fig.).

(27) C.G.G.J. van Steenis: ‘Nog iets over fumarolenplanten’ (Trop. Nat. 25, 1936, p. 158-159, 4 fig.); ‘Een beklimming van den Piek van Bali’ (Meded. N.I. Ver. Bergsport no 13, 1936, p. 20, 1 fig.); ‘Losse aantekeningen over de Balische flora’ (Trop. Nat. 26, 1937, p. 69-78, 14 fig.).

(28) cf. report in Trop. Nat. 25, 1936, p. 143; and in Buitenzorg Post from July 7, 1936, p. 1.

(29) C.G.G.J. van Steenis: ‘On the 1937 Losir expedition to the Gajolands (Atjeh, N. Sumatra)’ (Chron. Bot. 4, 1938, p. 248-249); ‘Exploraties in de Gajo-Landen. Algemeene resultaten der Losir-Expeditie 1937’ (Tijdschr. K.N.A.G. 55, 1938, p. 728-801, 32 fotos, 2 maps; and Bull. Mij Nat. Onderz. Ned. Kol. no 97), and postscript to this paper in l.c. 55, 1938, p. 932-933; ‘Naar den hoogsten top van Atjeh’ (Actueel Wereldnieuws 14, May 1, 1937, 7 pp., 10 fotos); ‘De aarden buizen van de Gajolanden’ (Trop. Nat. 26, 1936, p. 190-191, 2 fig.); ‘Exploring the mountain flora of North Sumatra’ (Chron. Bot. 4, 1938, p. 169); report of a lecture on the expedition in Nat. Tijdschr. N. I. 98, 1938, p. 213-214; ‘Ecological observations on the genus Pleiocraterium’ (Rec. Trav. Bot. néerl. 36, 1939, p. 446-448); ‘Bergen en bergtochten in de Gajoe- en Alaslanden’ (Meded. N.I. Ver. Bergsport no 17, 1940, p. 2-14, 2 maps, 17 fotos).

cf. also sub 40.

F.A. van Baren: ‘Petrografisch en mineralogisch onderzoek van enkele gesteenten en zanden van den Gajo Loeeus (Atjeh)’ (Proc. Kon. Akad. Wet. Amsterdam 42, 1939, p. 79-82, w. map).

(30) C.G.G.J. van Steenis: ‘Naar den hoogsten top van Celebes’ (Actueel Wereldnieuws Sept. 4, 1937, 5 pp., 6 fig.); ‘Een beklimming van den Latimodjong (Zuid Celebes)’ (Meded. N.I. Ver. Bergsport no 15, 1937, p. 1-4, 4 fotos); ‘Verdrinkend bosch’ (Trop. Nat. 26, 1937, p. 191-192, 2 fig.).

cf. also F.K.M. Steup in Trop. Nat. 27, 1938, p. 140-146, 10 fig.

(31) C.G.G.J. van Steenis: ‘Het Danoe-meer’ (1le Verkl. N.I. Ver. t. Nat. Besch. 1939, p. 214-222, fig. 53-58).

(32) cf. report in Buitenzorg Post from Nov. 9, 1937; and in Trop. Nat. 27, 1938, p. 75-76, 3 fig.).

(33) C.G.G.J. van Steenis: ‘Het gelam bosch bij Angké-Kapoek (Batavia)’ (Tectona 31, 1938, p. 889-901, 6 fig.).

(34) cf. 11e Versl. N.I. Ver. t. Nat. Besch. 1939, p. 313-314.

(35) C.G.G.J. van Steenis: ‘Kieming van zaden van Mimosa invisa na brand’ (Trop. Nat. 28, 1939, p. 191, 1 fig.); ‘Eikels in de drift op het strand bij Oedjoeng Genteng’ (l.c. 29, 1940, p. 74).

(36) C.G.G.J. van Steenis: ‘Vegetatieschetsen van den Idjen’ I-II (Trop. Nat. 29, 1940, p. 157-161, 180-184, 1 t fig.).

(37) C.G.G.J. van Steenis: ‘Eikels in drift op het eiland Purmerend’ (Trop. Nat. 29, 1940, p. 198-199).

(38) C.G.G.J. van Steenis: ‘Het veentje van Rawa Gajonggong bij Tjibeureum boven Tjibodas (N. Gedeh)’ (Trop. Nat. 30, 1941, p. 170-172, 4 fig.).

(39) cf. Trop. Nat. 30, 1941, p. 179-181.

(40) J.J. Smith: ‘Die Orchideen der Anambas- und Natuna-Inseln’ (Fedde Repert. 30, 1932, p. 327-336); orchids from Sumatra 1929 in Fedde Repert. 32, 1933.

C.E.B. Bremekamp: ‘Pleiocraterium genus novum Rubiacearum Hedyotidearum’ (Rec. Trav. Bot. nderl. 36, 1939, p. 438-445).

H.N. Dixon: ‘High alpine mosses from Sumatra’ (Ann. Bryol. 12, 1939, p. 48-56), with postscript by van Steenis (l.c. p. 56).

G. Kükenthal: ‘Neue Cyperaceen aus dem Malayischen and Papuanischen Gebiet’ I (Bull. Jard. Bot. Buit. sér. 3, vol. 16, 1940, p. 300-323).

O. Posthumus made a MS. list of Atjeh ferns, 1937.

J.J. Smith: ‘List of Orchidaceae collected in 1937 by Dr C.G.G.J. van Steenis in Atjeh (North Sumatra)’ I-II (Blumea 5, 1943, p. 316-323; l.c. 5, 1945, p. 700-708).

R. Geesink: ‘Two new species of Swertia (Gentianaceae) from N. Sumatra’ (Blumea 20, 1972, p. 132).

biographical data:

Wie is dat? ed. 3-4; Backer, Verkl. Woordenb., 1936; Blumea 20, 1972, p. 1-6, portr.; ibid. p. 7-24, 6 fig.; Trop. Ecol. 13, 1972, p. 1-4, portr.

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