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CURRENT LITERATURE 



NOTES FOR STUDENTS 



Taxonomic notes. — Beccari 1 has monographed the palms of the Philip- 

 pine Islands, recognizing 129 species in 22 genera, besides numerous varieties. 

 Only 15 of these species have a wide distribution, and 5 are naturalized, 

 leaving 109 endemic species. The new species are 10 in number, and Adonidia 

 is established as a new genus. Much the largest genus is Calamus, with 

 36 species. 



Evans 2 has monographed the North American representatives of Aster ell a, 

 "a difficult group of liverworts/' A discussion of the morphological features 

 of the genus is followed by a detailed taxonomic treatment of the 14 species, 

 3 of which are new. 



Pennell 3 has begun a series of papers dealing with the Scrophulariaceae 

 of Wyoming, Colorado, and Utah, and of Idaho west to the 113th meridian, 

 based upon extensive field work and also upon critical study of herbarium 

 material. The purpose is to give for each species its taxonomic history, its 

 flowering season, and its distribution. The first paper deals chiefly with 

 Pentstemon, in which 88 species are recognized and arranged under 19 

 sections, 27 of the species being described as new. 



Brause,4 in his study of Papuan Pteridophytes, describes 45 new 

 species, chiefly in Poly podium (19), Viltaria (6), Angiopteris (5), and Selaginella 

 (10). ' Of the 970 species of Pteridophytes listed, 597 are said to be endemic. 



Brotherus, 5 in describing Weberbauer's collection of South American 

 mosses, describes 29 new species. 



Pilger, 6 in continuing his studies of South American grasses, describes 

 9 new species. 



1 Beccari, O., The palms of the Philippine Islands. Philippine Jour. Sci. 14: 

 295-362. pis. 3. 1919. 



2 Evans, A. W., The North American species of Asterella. Contrib. U.S. Xat. 

 Herb. 20:247-312. 1920. 



3 Pennell, F. W., Scrophulariaceae of the Central Rocky Mountain States. 

 Contrib. U.S. Xat. Herb. 20:313-381. 1920. 



4 Brause, G., Bearbeitung der von C. Ledermanx von der Sepik -Expedition 



191 2 bis 1Q13 und von anderen Sammlern aus dem Papuagebiete frliher mitgebrachten 

 Pteridophyten, nebst Ubersicht iiber alle bis jetzt aus dem Papuagebiet bekannt 

 gewordenen Arten derselben. Bot. Jahrb. 56:161-250. 1920. 



5 Brotherus, V. F., Musci Weberbaueriani. Beibl. Bot. Jahrb. 56:1-22. 1920. 



6 Pilger, R., Gramineae austro-americanae imprimis Weberbauerianae. V. 

 Beibl. Bot. Jahrb. 56:23-30. 1920. 



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