Collecting localities



Biographical data


Hasskarl, Justus Karl


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


Born: 1811, Cassel, Germany. Died: 1894, Cleves, Germany.



Came out to Java in 1837 and was appointed Assistant Curator of the Botanic Gardens at Buitenzorg; in the years 1841-43 he travelled over Java and was subsequently absent on sick-leave to Europe, returning to Java in 1845; in the same year he resigned, dissatisfied with his rank, and sailed for Europe again. In 1852 he was commissioned by the Dutch Government to travel to Peru for the study of the ecology of Cinchona, and if possible, for bringing living plants of the same to Java. He succeeded in 1854 and finally returned to Europe in 1856. In the ‘Leopold. Carol. Akademie’ he was known under the surname of Retzius.1

Author of numerous botanical publications;2 commemorated in the genus Hasskarlia Baill.


Collecting localities:

 1841. W. Java, S. Bantam etc. (Sept.-Oct.):3 at Tjampea (G. Tjibodas), Jassinga (= Djasinga), G. Angsana, Soedamani(e)k, Lebak, Pas(s)i(e)r Angi(e)n, Tjilangkahan, beach of S. Bantam, Bodjongmani(e)k, Goenoengkentjana, G. Dedap, Tjitjari(e)ngi(e)n, Kali Tjili(e)man, Lebalboe, beach on the S. coast near kali Tji(h)ara and Baija (= Bajah), Sawarna, Tjisolok, Plamboean Ratoe (= Palaboehanratoe), G. Halimoen, kali Tjibarenoh, Tjisoengsang, etc.-1842. W. Java: Kawah Manoek (Sept. 24);4 Centr. Java: Semarang (Oct.), Demak, Poerwadadi, Koewoe (mudwells, Oct. 13),5 Demak, Djapara, Déweh, G. Moeria (= Moerjo).-1843. W. Java: Priangan and Cheribon Residencies.-1855. W. Java: Telagabodas, Depok; slope G. Malabar (July); Tjisandehr and Pasir Lodok (Aug.); G. Papandajan (Aug.).

Of the following localities we do not know the date: G. Tangkoeban Prahoe (W. Java) and Tjilatjap (S. coast of Centr. Java).



Herb. Leiden [L]: c. 20.000 species of the whole world (pres.); dupl. in Herb. Bog. [BO], partly numbered in the H.B. series; Herb. Berl. [B]: 650 nos from Java, partly from Hort. Bog.; Herb. Kew [K]; dupl. with Herb. Meisner in Herb. N.Y. Bot. Gard. [NY].

The herbarium of Hasskarl comprises 3605 genera with 17738 species and 3897 varieties, provided with an index. The collection consists mainly of European plants; beside his own Java plants, it contained a collection from Hort. Bog., presented by Teijsmann in 1867.



(1) cf. Bot. Zeitung 17, 1859, p. 167.

(2) ‘Catalogus plantarum in horto botanico Bogoriensi cultarum’ (Batavia 1844); ‘Retzia, sive Observationes botanicae’ (1855-56); ‘Hortus bogoriensis descriptus, sive Retzia editio nova valde aucta et emendata.’ Pars Prima (Amstelodami/Bonnae 1858); ‘Horti malabarici clavis nova’ (Regensburg 1862); ‘Neuer Schlüssel zu Rumph’s Herbarium amboinense’ (Halle 1866); etc.

(3) J.K. Hasskarl: ‘Sumadang in de residentie Bantam’ (Tijdschr. Neerl. Ind. 42, 1842, p. 126-131); ‘Bijdrage tot de kennis van Zuid Bantam’ (l.c. p. 221-256).

(4) cf. Junhghun, Java, 2, 1854, p. 126-128.

(5) J.K. Hasskarl: ‘Reise nach dem Berge Japara and den Schlamm-Quellen von Kuwu’ (Flora N.R. 5, 1847, p. 639-653).


biographical data:

Flora 28,1845,p.431; l.c. 40, 1857, p. 194-202; Pritzel, Thes. Lit. Bot., 1872; Ind. Gids 161, 1894, p. 290-299, w. portr.; Teysmannia 5, 1894, p. 129-148, w. bibliogr.; Ned. Kruidk. Arch. ser. 2, vol. 6, 1894, p. 384-385; Ind. Mercuur 17, 1894, p. 13-14, w. portr.; Engl. Bet. Jahrb. 18, 1894, Beibl. no 44, p. 41; Album der Natuur 1894, p. 101; Wittrock, Icon. Bot. Berg., 2, 1905, p. 173, t. 132; Encyclop. N.I. 2, 1918; Backer, Verkl. Woordenb., 1936; Ned. Kruidk. Arch. 49, 1939, p. 443; l.c. 50, 1940, p. 191-192; l.c. 51, 1941, p. 353; l.c. 52, 1942, p. 388.