60 PROCEEDINGS OF THE AMERICAN ACADEMY 



long : lobes of the greenish corolla tinged with brown, narrowly ob- 

 long, acute, nearly 3 lines long ; column short ; hoods yellowish, 

 shorter than the anthers, somewhat thickened dorsally and bluntly 

 beaked, the sides subquadrate and the nearly straight subulate spur 

 scarcely exserted : follicle erect on the erect pedicel, 4 inches long, 

 smooth. — In rocky ravines near Los Angeles Bay. (588.) 



Metastelma Pkinglei, Gray, var. (?), with longer and acuter 

 calyx-lobes and the filiform lobes of the crown somewhat shorter ; 

 flowers yellow. — Hillsides near Guaymas. (626.) 



Metastelma albiflora. Glabrous or nearly so ; stems twining, 

 4 feet long : leaves petiolate, narrowly oblong to linear, short-acumi- 

 nate, 6 to 10 lines long: flowers white, in sessile fascicles, the pedi- 

 cels very short: calyx-lobes narrowly linear, acuminate ; corolla a half 

 longer (nearly 2 lines), densely villous within, the lobes narrowly 

 lanceolate ; crown of 5 very narrow and attenuate scales attached to 

 the very short column and equalling the distinct corneous cuneate- 

 obcordate anthers ; appendage of the anthers oblong. — Exposed 

 cliffs near Guaymas. (223.) 



Pattalias* Palmeri. Stems slender, several from a rather thick 

 branching rootstalk, slightly puberulent or glabrate, a foot long or 

 more : leaves very narrow, 2 inches long or less, sessile, acute : flow- 

 ers (2 to 6) yellow, on pedicels 1 or 2 lines long or less : corolla 2 

 lines long, twice longer than the calyx: lobes of corona ovate, attached 

 to the column at the base of the anthers, lanceolate, acute, half the 

 length of the stout conical beak : follicle 4 inches long by 3 lines 

 broad, narrowed at base and long-attenuate above. — Near a sandy 

 beach at Muleje. (424). — A second species of this genus is P. 

 angustifolius, a Sonora plant doubtfully referred by Dr. Torrey in 

 the Mexican Boundary Report to Metastelma, and more recently 

 by Dr. Gray to the extra-tropical South American genus Melinia. 

 It is of similar habit, but has petiolate leaves, a longer calyx, the 

 crown at the base of the column, the anther-tips much more conspicu- 

 ous, and the beak of the stigma narrow and columnar. 



* PATTALIAS, a new genus of the Asclepiadacece, of the Metastelma group. 

 Calyx 5-parted, the lohes narrow, acuminate, eglandular. Corolla becoming 

 opcn-campanulate, 5-parted, narrowly convolute in the bud, naked, the lobes 

 lanceolate. Crown of 5 distinct fleshy entire lobes inserted upon the short 

 column, exceeding the short anthers. Stigma surmounted by a prominent 

 conical or columnar entire beak, exceeding the membranous erect tips of the 

 anthers. Follicles smooth, slender. — Low twining herbaceous perennials, with 

 narrowly linear opposite leaves, and small flowers shortly pedicellate in an axil- 

 lary nearly sessile umbel. 



