Career

Collecting localities

Collections

Literature

Biographical data

(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: 1892, Veendam, Gr., Holland.

career:

Botanist, educated at Utrecht University, where he took his Ph. Dr’s degree in 1919; Assistant at the Buitenzorg Herbarium, 1919-32; Chief of the Foreigners’ Laboratory, Buitenzorg, and besides Extraordinary Professor at Batavia Medical College, 1932-33; since 1933 Director of the Rijksherbarium and Extraordinary Professor (in 1945 Ordinary) in the University, Leiden. In 1954 he was awarded a honorary Dr’s degree at Perth, W. Australia. Following his visit to Australia, he made a tour in New Guinea. Retired in 1962.

Besides of the below-cited literature, author of many systematic, plant-geographical, morphological, and other papers.

Several plant species and the genera Lamechites Markgr. and Lamiofrutex Laut. (= Vavaea) were named after him.

Collecting localities:

1919. W. Java: above Gadok (Aug. 9); G. Salak (Sept. 14); probably in this year visiting G. Bondo, Pasir Bondo and G. Pantjar (Sept. 21); G. Gedeh, Kandangbadak (Oct. 15).-1920. W. Java: G. Mandalagiri (March 23-26, 29-31 and Apr. 2); G. Djaja (March 27, Apr. 1); Garnet (March 27); G. Papandajan (March 28).-Van Overeem Expedition, 1920-21.¹ Dutch North New Guinea with mantri Ajoeb (see there) : Pionier bivouac, Mamberamo (June 13, 1920; Lam and some other participants not joining the expedition before then); Otken River; setting out (Aug. 8) to Prauwen bivouac (Edi Falls, Van Rees Mts, Meervlakte), arriving the 14th; Doorman River; setting out (Sept. 18) to Brug bivouac; proceeding (28) to G. Boetak (Idenburg River); Radio bivouac (3260 m), Doorman summit (Oct. 16), climbing the summit (3550 m); descending (29) on account of food shortage; ascending again (Nov. 7); staying 4 days at Beek bivouac (2400 m), and proceeding to Radio bivouac (arrival on the 14th); descending (17) to Dika bivouac (Swart River) (19); Prauwen bivouac (Dec. 5-24); Pionier bivouac (28); sailing (Jan. 12, 1921) for Ambon and ascending G. Api on Banda (Jan., not collecting).² -1922. W. Java: Depok (Sept. 17); Centr. Java: G. Slamat (Nov. 19-22);³ W. Java: G. Tjeremai (Dec. 24-26).⁴-1923. Islands in the Bay of Batavia (Klein Kombuis, Enkhuizen, Kerkhof)(Apr. 20-22).-1925. W. Java: Buitenzorg (March 30); Tjiboerial (Apr. 10); G. Salak (May 20-21); tea estate Tjianten (June 21); G. Tjibodas, Tjampea (July 19); Buitenzorg (Aug. 20). Expedition to Celebes, Moluccas, etc., 1926 (March 31-July 20).⁵ N. Celebes:⁶ arrival at Manado (Apr. 12); by car along the coast to Tanahwangko (13); to Ratahan via Tomohon (14); G. Manimporok (15); Bélang on the Gulf of Tomini (16); crossing the Minahassa by car via Tombatoe, Toempaän, Kawangkoan, Rembokken (Lake Tondano), Tondano, Sarangan, Ajermadidi and back to Manado (17); by steamer (departing in the evening of the 19th) via Groot Sangi(he) (Taroena) (20) to the Talaud Islands: P. Karakelong (Apr. 21-May 16),⁷ making trips from Beo (Apr. 21-28); by proa to Lobo (29), along Koeala Bahewa (= K. Lobo or K. Rae), past the tributary K. Malaboe and making bivouac at Tatamboewe (Apr. 30-May 11), returning to Lobo along the Koeala, arriving the 15th; via Noesa Maraloem (=P. Jolly) back to Beo (16), staying till the 19th; P. Salebaboe (May 20-25): Liroeng, G. Ajambana (22 and 23 on the summit); via the small lakes Danon Timbalang’a and Danon Bindoek back to Liroeng (24); P. Kaboeroeang (= Kabroeang) (May 26-27); landing at Mangarang (26) and excursion in eastern direction till half-way the island (G. Boewidoewawi), Koeala Ampas; P. Salebaboe: collected at Moronge near Lota Swamp (28); P. Karakelong (May 29-June 9): landing at Poeloetan; G. Piapi (May 31-June l on the summit); on foot via Poeloetan and Dahang to Beo (June 4-9); P. Miangas (June 11-12);⁸ Nenoesa (= Nanoesa) Islands: P. Merampi (June 13), P. Garat (14); P. Morotai (June 16-July 1): Wajaboela (16-17); to Pilowo (18); Doro-Doro, Goegoeti bivouac (20-26); Marilako (27-29); Wajaboela (July 1); via Djailolo in Halmaheira, and Ternate (2-5), to Tidore (July 6-9): climbing the Peak (8); via Ternate (10-11), Batjan (13), Ambon (14), and Makassar (S W. Celebes) (16), back to Priok (arriving July 20).-1928. W. Java: Tjigombong (March 18); Wates (Oct. 7).-1930. Tjikopo (Sept. and Nov. 9); G. Salak (Dec. 25).-1931. P. Hoorn (Bay of Batavia); Priangan (Apr. 4); Megamendoeng (July 28); G. Salak (Aug. 3); Tjikopo (Oct. 18); E. Java: Madioen, Sarangan (Dec.); Centr. Java: Bandjarnegara.-1932. W. Java: Bolang, Tjikasoengka (Febr. 21); Geger Bintang and Tjisaroea Zuid (South) (June 19); Tjigombong (July 10).-1933. Pondok Gedeh (Jan. 8); Mountain Garden Tjibodas (Jan. 27).-1954. Papua: Port Moresby and Sogeri (Sept. 28), Brown River (29); Mand. Terr. of New Guinea: Lae (Oct. 1), Bulolo (2), Wau (Edie Creek) (3), Bulolo-Lae (4), Lae (5); North New Guinea: Hollandia (9), Cyclops (K. Koejaboe) (10), Holtekang (E of Hollandia) (12), Hollandia-Depapre (15), Depapre (16).-1962. Malaya: during the UNESCO limestone Expedition in Ulu Kelantan (July 24-Aug. 18).

collections:

Herb. Bog. [BO]: in total 3850 nos; the Java numbers provided with a J., the New Guinea collection amounting to 1711 nos (including Fungi, lichens and Algae),⁹ 983 nos from Talaud and Nanoesa Islands, 228 from Morotai and a small collection from N. Celebes and the Peak of Tidore;¹⁰ Herb. Leiden [L]: dupl. from Java, New Guinea, Celebes, and the Moluccas; Herb. Utrecht [U]: New Guinea (1920) and Java (1925) plants. Herb. Leiden [L]: 129 nos New Guinea (1954).

His orchid collection from the Moluccas was studied by J.J. Smith.¹¹

According to the herbarium lists,¹² the collecting on the Doorman summit (New Guinea) took place daily between Oct. 1 st and Nov. 18th; this does not agree with the interruption recorded in literature.

He collected wood samples in Celebes, Talaud and Morotai.

Living plants from Morotai and P. Karakelong in Hort. Bog.

literature:

(1) ‘Mamberamo’. De expeditie naar Centraal Nieuw Guinea (Het Indische Leven, August 1920): ‘De wetenschappelijke expeditie naar Nieuw-Guinee’ (Bandoeng 1921, 7 pp.).

H.J. Lam: ‘Iets over de botanische resultaten van de Noord-Nieuw-Guinea expeditie 1920’ (Teysmannia 32, 1921, p. 289-326 and rectification in l.c. 33, 1922, p. 54); ‘Nieuw Guineesche aspecten’ (Trop. Nat. 11, 1922, p. 38-45, 10 fig.); ‘Iets over den akkerbouw bij een papoeastam in Centraal Nieuw-Guinea, benevens enkele opmerkingen over land en flora van dat eiland’ (Hand. 2e N.I. Natuurwet. Congr. 1922, p. 156-161); ‘Vegetationsbilder aus dem Innern von Neu-Guinea’ (in Schenck & Karsten, Vegetationsbilder, 15. Reihe, Heft 5-7, 1924); ‘Fragmenta Papuana’ I-VII (Nat. Tijdschr. N.I. 87, 1927, p. 110-180; l.c. 88, 1928, p. 187-227, 252-324, l.c. 89, 1929, p. 67-140, 291-388; in total with 93 fig.; transl. into English by L.M. Perry in Sargentia 5, 1945, 196 pp., 32 fig., 2 maps); ‘Materials towards a study of the flora of the island of New Guinea’ (Blumea 1, 1934, p. 115-159, 3 fig.); ‘De vegetatie en de flora van Nieuw-Guinee’ (Nieuw Guinee 1, 1935, p. 187-210, fig. 36-43, 1 map).

(2) cf. Tijdschr. K.N.A.G. 1922, p. 597-604.

(3) H.J. Lam: ‘Aanteekeningen betreffende een bestijging van den G. Slamat’ (Trop. Nat. 13, 1924, p. 17-25, 6 fig.).

(4) H.J. Lam: ‘Een bestijging van den G. Tjaremé’ (Trop. Nat. 14, 1925, p. 2-10, 2 fig.).

(5) Extracted from his diary, deposited at the Buitenzorg Herbarium.

L.B. Holthuis & H.J. Lam: ‘A first contribution to our knowledge of the flora of the Talaud Islands and Morotai’ (Blumea 5, 1942, p. 93-256).

(6) H.J. Lam: ‘Botanische aanteekeningen van den Minahassa’ (Trop. Nat. 20, 1931, p. 209-219, 6 fig.).

(7) H.J. Lam: ‘Een plantengeographisch dorado’ (Hand. 4e N.I. Natuurwet. Congr. 1926, p. 386-397).

(8) H.J. Lam: ‘Mianghas, the disputed isle’ (Interocean 9, 1928, p. 195); ‘Miangas (Palmas)’ (Ind. Comité Wet. Onderz. 6, Batavia 1932; with plant list).

(9) Descriptions of new plants in Nova Guinea vols 14 and 18, and in Beitr. z. Flor. Papuas. from no 11 onwards (=Engl. Bot. Jahrb. 59, 1925 →).

Bryophytes by H. Reimers in Hedwigia 69, 1929, p. 114-136.

(10) Systematic part of ‘A contribution to the flora of the Talaud Islands and Morotai’ by L.B. Holthuis in Blumea 5, 1942, p. 146-256.

(11) In ‘On a collection of Orchidaceae from the northern Moluccas’ (Bull. Jard. Bot. Buit. sér. 3, vol. 11, 1930, p. 67-81).

(12) Lists of the collections in Herb. Buitenzorg.

biographical data:

Wie is dat? ed. 3-4; portr. in Ann. Jard. Bot. Buit. 45, 1935, pl. 3, and in Chron. Bot. 1, 1935, p. 27; Backer, Verkl. Woordenb., 1936; Curr. vitae in Rijksherbarium Leiden; Blumea Suppl. 4, 1958 (Jubilee vol.), p. 1-16, bibliogr., portr.