

1917] CURRENT LITERATURE 167 



In the last number of Hooker's I cones Plantarum (V. upls. 3051-307 5 , 

 June 19 16), the following new genera are described and figured: Pappobolus 

 Blake (Compositae) , Mischopleura Wernham (Ericaceae), Neowollastonia 

 Wernham (Apocynaceae) , Dalzielia Turrill (Asclepiadaceae) , Eriolopha Ridley 

 (Zingiberaceae) , Chloachne Stapf, Uranthoecium Stapf, and Danthoniopsis 

 Stapf (Gramineae). In addition to these 8 new genera, 7 new species are 

 described. 



Koidzumi, 33 in continuing his studies of Castanaceae, has recognized 

 Synaedrys Lindl as a genus, extending it considerably, and has included under 



tties transferred from Quercus. He also lists 234 species as remaining 



Q 



Bermuda 



including 86 species representing 36 genera. New species are described in 



Collema 



West, 3 * in continuation of his studies of algae, has described a new marine 

 genus of the Volvocales (sub-family Carterieae), naming it Platymonas. He 

 also describes new species in Chlamydomonas (2) and Pteromcmas. — J. M. C. 



Eocene floras. — The geographic area covered in the recent monograph by 

 Berry 36 is the mainland south of latitude 41 and east of longitude 100. The 

 Antillean and Mexican regions are not included even for comparison on account 

 of meager information in regard to them. The memoir is monumental in its 

 character, consisting of nearly 500 quarto pages and 117 plates. A few ferns 

 and monocotyledons are described, and no conifers. Most of the illustrations 

 represent impressions of dicotyledonous leaves. The only anatomical illus- 

 trations are of a Cupressinoxylon and a Laurinoxylon, which are of the con- 

 ventional and vague nature that too often characterizes such illustrations in 

 publications of the U.S. Geological Survey. Apparently the Survey either 

 should not publish anatomical data at all or intrust their preparation to some 

 one equipped with a modern anatomical training. An important and valuable 

 feature of the work is the attempt to correlate the presence of fossil forms with 

 the principles of phytogeography. This appears to be very well done and is 

 not open apparently to the grave objections which present themselves in the 

 case of the conifers of the Mesozoic, which for the most part have been wrongly 

 identified from their impressions and consequently cannot be used safely in 



33 Kom^uMi 



, _ — y 



(Tokyo) 30:185-215. 1916. 



II. Bot. Magazine 



160. 1916. 



Riddle, Lincoln W., The lichens of Bermuda. Bull. Torr. Bot. Club 43:145- 



1916. 



* West, G. S., Algological notes. XYIH-XXIII. Jour. Botany 54: 1-10. Jigs. 7* 



36 Berry, E. W., The Lower Eocene floras of southeastern North America. U.S. 

 Geol. Survey. Professional paper 91. Washington. 1916. 



