386 PROCEEDINGS OP THE AMERICAN ACADEMY. 



broad, retuse : ovary uniovulate ; legume pendulous, somewhat trape- 

 zoidal, 1-seeded, membranous, acuminate at the apex, finely pubescent, 

 ciliated on the margin, about half an inch long. — Collected in the 

 barranca of Tequila, Jalisco, 13 October, 1893 (no. 5446). This 

 species is exceptional in Phaseolus in possessing 1-seeded legumes, but, 

 differing from this genus in no other regard, should doubtless be 

 referred hither, especially since in the closely related P. filiformis, 

 Benth., there are sometimes but two seeds in the pods. 



Vigna strobilophora, Rob. (Proc. Am. Acad. xxvi. 167.) 

 Specimens of this plant collected in a barranca near Guadalajara, 25 

 August, 1893 (no. 4503), furnish the following supplementary charac- 

 ters : stems woody, an inch or more thick, climbing to the tops of 

 shrubs and trees : legumes smooth, 4 inches long, half an inch in 

 breadth, acuminate ; seeds ellipsoidal, dark purple, mottled, almost 

 black. This plant has been figured recently in ' Garden and Forest,' 

 vii. 155. 



CLesalpinia Mexicana, Gray, var. pdbescens. Branchlets and 

 both surfaces of the leaves when young soft-pubescent : petals beau- 

 tifully ciliolate with stipitate glands : pod rather short and broad, free 

 from the punctation commonly if not always present in the typical form. 

 — Collected on dry hills near Zapotlan, 25 May, 1893 (no. 5467). 



Schizocarpum parviflorum. Stems very slender, furrowed, 

 finely pubescent ; internodes elongated : leaves cordate-ovate in out- 

 line, denticulate, green and sparsely appressed-pubescent above, slightly 

 paler and more densely appressed-pubescent beneath, varying from 

 3-5-toothed to deeply 3-lobed ; lobes apiculate, the terminal one often 

 considerably exceeding the others : tendrils unequally 2-branched : 

 peduncles pubescent, 3 lines to an inch long: free lobes of the adnate 

 calyx filiform, 1-1 1 lines long : the yellow campanulate corolla 8-12 

 lines in length, fiuely glandular-pubescent upon the outer surface, soft 

 pubescent within, ciliolate upon the margin ; segments ovate, obtusish, 

 sometimes apiculate, 3 (-5)-nerved : filaments about 2 lines in length, 

 equalling the anthers : fruit flask-shaped, nearly 2 inches in length, 

 puberulent. — Collected on talus of cliffs, barranca of Tequila, Jalisco, 

 3 October, 1893 (no. 4555). Very similar in habit to S. filiforme, 

 Schrad., but with flowers about half as large. 



Coulterophytdm laxum, Rob. (Proc. Am. Acad, xxvii. 169.) 

 A younger specimen, collected in the barranca of Tequila, 6 July, 

 1893 (no. 5537), shows the following additional characters: flowers 

 yellowish-green ; petals broad at the base, abruptly contracted to a 

 slender, incurved tip. 



