868 A Sketch of the Progress of Botany [ December, 
While Dr. Rothrock bore the burden of the work, he availed 
himself freely of the aid of such excellent botanists as Mr. Wat- 
son, who worked out the Leguminosz, Dr. Engelmann (Cactacee, 
_ Asclepiadaceez, Gentianacee, Cuscutee, Euphorbiacee, Cupul- 
iferee, Loranthacee, Conifer, Amaryllidacee and Juncacez), 
Prof. Porter (Polemoniacee, B g , Scrophul , Labi- 
atæ and Polygonaceæ), M. S. Bebb (the genus Salix), Wm. Boot 
(the genus Carex) and Dr. Vasey (the Graminez). Twenty-nine 
excellent plates of flowering plants, mostly from drawings by 
Isaac Sprague, accompany the volume. 
Dr. Gray’s “ Botanical Contributions ” (Proc. Am. Acad. of Arts 
and Sciences) contained (1) “Characters of some new species of 
Composite in the Mexican collection made by C. C. Parry and 
Edward Palmer, chiefly in the Province of San Luis Potosi, in 
1878,” and (2) “Some new North American Genera, Species, &c.” 
The new genera are Suksdorfia, a Saxifragaceous genus from the 
Columbia river, and Howellia (Lobeliacez) from Oregon. 
Sereno Watson’s “Contributions to American Botany, Ix” 
(Proc. Am. Acad. of Arts and Sciences), issued July, 1879, con- 
tained (1) a “ Revision of the North American Liliacez,” and (2) 
“Descriptions of some new species of North American Plants.” 
Under the first part, the fifty genera and two hundred and thirty- 
five native species are arranged and described. The whole or- 
der, which here includes the Melanthacee, is divided into 
sixteen tribes, “based upon the characters of the inflorescence, 
and such others as can be used without separating evidently 
allied genera.” The Alliez come first, then the Millez, Conval- 
larieæ sixth, Yuccee ninth, with Lilies, Uvularieæ, Trilliee, 
Veratrez following in order, and the Xerophyllez at the end. In 
the second part the new genus Ho//isteria (Eriogonez) is described. 
“ The Willows of California,” by M. S. Bebb, issued July, 1879, 
consists of advance sheets of the “ Botany of California, Vol. 1.” 
Six new species and seven new varieties are described. ‘ 
Wm. M. Canby, in the Botanical Gazette for March, published 
under the title of “ Notes on Baptisia,” a valuable synopsis of an 
arrangement of the North American species, sixteen in number. 
Among the lists of plants the following may be mentioned, viz: 
Prof. J. W. Chickering’s “Catalogue of the Phenogamous and 
vascular Cryptogamous Plants collected during the summer of 
1873 and 1874 in Dakota and Montana,” published in Bull. p.s. 
Geol. and Geog Survey, Vol. 1v; this enumerates 673 flowering 
