Collecting localities



Biographical data


Lotsy, Johannes Paulus


(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: 1867, Dordrecht, Z.H., Holland. Died: 1931, Voorburg, Z.H., Holland.



Botanist who took his Ph. Dr’s degree at Gottingen; subsequently Lecturer at Johns Hopkins University of Baltimore, U.S.A. ; from 1896-1900 attached to the Cinchona Experiment Station (Tjinjiroean, Bandoeng, Java), in 1899 temporarily stationed at Tjibodas.1 When back in Europe he founded the ‘Association internationale des Botanistes’ and was appointed editor of the ‘Botanisches Centralblatt’. In 1904 Lecturer in Systematic Botany at Leiden University, and from 1906-09 besides Director of the State Herbarium (Rijksherbarium); from 1909-19 Secretary of the ‘Hollandsche Maatschappij van Wetenschappen’.

He made investigations on Balanophoraceae, and besides of his excellent works on taxonomy and genetics,2 he is the author of some papers on Javan plants.3

Oberonia lotsyana J.J.Sm. was named after him.


Collecting localities:

W. Java: Priangan Residency (1896-1900), at Tjibodas (May 22-23, 1897); Tjikopo, etc.; E. Java: G. Tengger, Tosari (May-June 1900), partly with J.D. Kobus (see there).



Partly in Herb. Leiden [L], with material in alcohol; some specimens in Herb. Bog. [BO]. Especially Balanophoraceae.



(1) cf. Verkl. Pl. Tuin Buitenzorg for 1899, p. 112-115.

(2) Viz: ‘Vorträge über botanische Stammesgeschichte’ (Jena 1907-11, 3 vols); ‘Vorlesungen über Descendenztheorien mit besonderer Berücksichtigung der botanischen Seite der Frage’ (Fischer Jena, 1909, 2 vols); ‘Evolution by means of hybridization’ (The Hague 1916); ‘Over Oenothera lamarckiana als type van een nieuwe groep van organismen, die der kernchimeren, etc.’ (’s-Gravenhage 1917); ‘Evolution considered in the light of hybridization’ (lectures at the Univ. Colleges of the New Zealand University, 1925); and many papers in Genetica, Zeitschr. f. ind. Abst. u. Vererb. lehre, etc.

(3) J.P. Lotsy: ‘Rhopalocnemis phalloides Jungh., a morphological-systematical study’ (with Th. Valeton in Ann. Jard. Bot. Buit. 17, 1901, p. 73-101, pl. 3-14); ‘Photographies de plantes intéressantes’. Pflanzen des javanischen Urwaldes (Rec. Trav. Bot. néerl. 1, 1904, p. 131-134, t. 3, p. 306-307, t. 8; l.c. 2, 1905, p. 175-176, t. 2, and p. 282, t. 7; l.c. 3, 1906, t. 6); ‘Die Monocotylenflora von Java’ (1904).


biographical data:

Genetica 13, 1931, p. i-xx, w. portr. & bibliogr.; Vakbl. Biologen 13, 1931/32, p. 57; Wie is dat? 1931; Backer, Verkl. Woordenb., 1936; Ned. Kruidk. Arch. 49, 1939, p. 446; l.c. 50, 1940, p. 196; l.c. 51, 1941, p. 361; in Dictionary of Scientific Biography, New York, vol. 8, 1973.