71 



Cotyledon, Munz fourteen of licheveria, but there is nothing in 

 either book, excepl the similarity ol specific names, to indicate 

 that tlie two genera are the same. Incidentally, ami charai ter 



istic of the two manuals, Jepson gives common names to several 

 of these species, Munz a common name for the genus only. 



The Introductory "Discussion of Distribution of Southern 

 California Plants" of some thirty pages describes very briefly 

 the geological and physiographical features of the region, the life 

 zones and the distinctive floras. ( )f the last there are described 

 the Mohave Desert, Colorado Desert, Montane, Cismontane 

 and Insular Floras. For each of these there is a list of charac- 

 teristic plants and of those endemic. 



At the end of the book, before the glossary and index, are a 

 number of pages of Nomenclatorial Changes, listing species and 

 varieties the names of which have been changed by the author. 

 In this section nine varieties and two species are described for 

 the first time as new, with their Latin diagnoses. Another un- 

 usual feature is a list, with brief biographical notes, of people 

 for whom species have been named. Another list is of specific 

 names with their derivations. 



The book is attractive in appearance, the descriptions are 

 clear and complete and the keys easy to follow. 



George T. Hastings 



