146 Recent Literature. [zop; 



since the article in Zoe was printed. There is some variation of 

 course in the comparative length of the palea and awn in these 

 species, but the great difference in favor of the awn is only found 

 in heads in early flower. 



Blepharizonia credited to Dr. Gray as a genus, is a mistake. 

 Gray used it as a subgeneric or rather sectional, name and never 

 believed it to be anything but "to me good Hemizonia". 



A considerable greater amount of synonymy might have found 

 place with advantage — especially the peculiar names of Prof. 

 Greene's Manual — such as Distegia, Alsinastrnm, Franca, Vibo, 

 Oxys, Siliquastrum, etc. 



Many of the recently described species have been omitted, 

 among them may be mentioned Cheiratithus angustatus, Thysano- 

 carpus hirtellus, Roripa multicaulis, Streptanthus asper, ' Sidalcea 

 scabra, S. valida, Astragalus Elmeri, Psoralea monticola, Lupi- 

 nus eximius, Trifolium quercetorum, T. trimorphum, Ribes 

 cruentum, Clarkia virgata, Arctostaphylos canescens, glandulosa 

 & montafia, Helenium occidental, H. rivulare, Pentachccta 

 bellidiflora, Xanthium Californicum, Pyrrocoma longifoliiim, 

 Dodecatheon cruentum, Gilia Chamissonis, G. staminea, Phacelia 

 Arthuri, Convolvulus collinus, C. fruticetorum, Lycopus maritimus, 

 Mimulus subsecundus, etc. 



Throughout the book there is evident the most careful and 

 painstaking proof reading and considering the difficulties en- 

 countered in a Flora of even a restricted region in California, the 

 author is to be congratulated on having done so well. K. B. 



