39^ Recent Literature.- [zoe 



Carlos Troyer, 538 Turk St., San Francisco. 



Frank H. Vaslit, 705 Sutter St., San Francisco. 



Mrs. S. E. Vaslit, 705 Sutter St., San Francisco. 



Miss Alice C. Vincent, 151 1 Sacramento St., San Francisco. 



Dr. L. M. F. Wanzer, 205 Taylor St., San Francisco. 



Mrs. Wm. Westhoff, 899 Pine St., San Francisco. 



Mrs. S. A. P. Wheeler, Avalon, Santa Catalina Island, CaL 



Mrs. B. A. Wicker, 1327 Howard St., San Francisco, Cal. 



Mrs. J. R. Wilson, 3042 i6th St., San Francisco. 



RECENT LITERATURE. 



Cojitribiitiojis to Anterican Botany, XVIII. By Sereno Wat- 

 son. I. Descriptions of some new North American species, chiefly 

 of the United States, with a revision of the American species of the 

 genus Erythronium. II. Descriptions of new Mexican species, 

 collected chiefly by Mr. C. G. Pringle, in 1889 and 1890. IIL 

 Upon a wild species of Zea. IV. Notes upon a collection of plants 

 from the Island of Ascension. 



The species described in the first paper— .4ra/^w Macounii, Ery- 

 simum arenicola, Silene Macounii, Mimulus Jilicaulis. Cladothrix 

 crypianiha, Eriogo7uon mimdiflorum , E. deserticota, Zostera Ore- 

 gana and C. Pacifica—aLX^ all but one from the Pacific coast. 



The revision of Erythronium more than doubles the number 

 given in the author's Revision of the Liliace^e. One new species, 

 E. montanum, and two varieties, E. grandiflorum var. parviflorum, 

 and E. revoluiiun var. Bolanderi, are described. 



The second paper contains descriptions of eighty-four new species. 

 Of the two genera proposed, Oligonema* belongs to the Asteriod 

 Compositce, and Neopringlea replaces the old genus Llavea of Lieb- 

 man. Mr. Pringle deserves a more stable genus than this is likely 

 to prove, for both the nearly related monotypic fern genera Llavea 

 and Cryptogramme are with difficulty kept separate from Pelhea. 



The third paper of the series is devoted to the description of a 

 new species of Zea, Z. canina from Mexico, where it was believed 

 to be the origin of the cultivated species. Its further cultivation 

 will be looked for with interest. It undoubtedly differs greatly 



* Since changed by the author to Golionema, Bot. Gaz. xvi, 267. 



