REVIEW. 



Koorders, S. H. Exkursionsflora von Java umfassend die Bliitenpflanzen 

 mit besonderer Beriicksichti^ng der im hochgebirge wildwachsende 

 Arten. 1 (1911), pp. XXIV + 413 (Monocotyledonen) ; 2 (1911), pp. 

 742 (Dicotyledenen Archichlamydeae) ; 3 (1912), pp. VIII + 498 

 (Dicotyledonen Metachlamydeae). Jena: Gustav Fischer. 



Java is botanically better known than is any other island of 

 the Malay Archipelago, and its rich and varied flora has long been 

 studied and by many botanists. Up to the present time, on 

 account of the very numerous articles dealing with the subject, 

 it has been quite impossible for the working botanist to gain any 

 comprehensive idea of the flora of the island as a whole, the total 

 number of genera and species, habitats and ranges of the latter, 

 and other data of interest. Doctor Koorders has undertaken to 

 compile a complete list of Javan flowering plants, but his work 

 is immensely more valuable than a mere enumeration of genera 

 and species, on account of the included keys, references, and 

 other data. With his extensive knowledge of the subject, based 

 on long residence in Java, very comprenhensive botanical explora- 

 tion, and critical study of all available material, Doctor Koorders 

 has succeeded in completing an exceedingly valuable and appar- 

 ently eminently usable work. He has included analytical keys 

 to the families, genera, and species, the key to families alone 

 occupying 48 pages of text. This extensive treatment is largely 

 due to the necessity of frequently including the same family 

 under two or more heads on account of exceptional characters 

 in various genera or species. An excellent glossary of technical 

 terms is included. 



The arrangement of families and genera is that of Engler and 

 Prantl's "Natiirlichen Pflanzenfamilien," and it is the first work 

 of great importance on the Malayan flora that has been published 

 after this system. As practically all recent works on the floras 

 of tropical Asia and Malaya have followed the sequence of 

 Bentham & Hooker's "Genera Plantarum," an alphabetical list 

 of families has been given with their equivalents in the latter 



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