V. planttE wrightian^. ' 69 



150. Cassia Lindheimeriana, Scheele in Limicea, 21. p. 457; Grai/, PL Lindh. 

 2. p. 179. Western Texas, common. Also Monterey, N. Leon, Berlandier. It is 

 allied to C. apiculata, Mart. 8f Galeotti ; but it is more silky-tomentose, larger in all 

 its parts, with broader and caducous stipules, more numerous leaflets ; the mature 

 pods glabrate. 



151. C. Rcemeriana, Scheele, I. c. Hills, from Austin, Texas, west to the San 

 Pedro River. — Stems 8 to 15 inches high, herbaceous nearly or quite to the base, 

 from a very thick ligneous root. 



152. C. BAUHiNioiDES (Gvajf, PI. Lindh. 2. p. 180, adnot.) : humilis, sufFruticosa, 

 sericeo-canescens ; foliolis unijugis rariusve bijugis, oblongis vel subovatis utrinque 

 rotundatis inaequilateris ; glandula interposita ; stipulis setaceis persistentibus ; pe- 

 dunculis 2 - 3-floris folium sequantibus ; legumine membranaceo turgido rectiusculo 

 vel subfalcato hirsuto. — On the Rio Grande, Texas, and west to New Mexico : al- 

 so in the collection of 1851. — Stems from a span to nearly a foot high, numerous 

 from a thick and lignescent perpendicular root. Legume oblong or linear-oblong, 

 8 - 15-seeded. 



153. C. PTjjiiLio {Gray, PL Lindh. 2. p. 180): nana, subcaulescens e radice longa 

 perpendiculari lignosa, strigulosa ; foliolis unijugis linearibus lanceolatisve cuspi- 

 datis subnervatis, glandula subulata interposita ; petiolo in appendicem subulatam 

 producto ; stipulis setaceis elongatis basi petioli adnatis rigidis persistentibus ; pe- 

 dunculis unifloris folium superantibus infra apicem unibracteatis ; sepalis scarioso- 

 marginatis obtusissimis ; staminibus 3 superioribus difi"ormibus castratis ; legumine 

 inflate ovoideo vel oblongo obtusissimo membranaceo puberulo dehiscente calyce 

 persistente subduplo longiore; seminibus plurimis (6-12) horizontalibus septis 

 hyalinis incompletis parallelis. — Bottoms of the San Pedro River, in sandy soil ; 

 and on the Rio Grande in Southern Texas. Also in the collection of 1851, with 

 ripe fruit. — This singular dwarf species, with a pod like that of a Crotalaria (in- 

 flated, and with the sides slightly compressed, half an inch or a little more in 

 length, sometimes globose-ovoid), is scarcely referrible to any one of Vogel's sections, 

 although it has the flowers of a Chameesenna. The deep, often nodose-thickened, 

 ligneous root is six or seven inches long. The caudex or stem, usually very short, 

 sometimes rises two or three inches out of the ground, and is clothed with the subu- 

 late persistent stipules. Peduncle two or three inches long, articulated at the in- 

 sertion of the subulate bractlet. Leaflets subcoriaceous, in some specimens nearly 

 glabrous ; the earlier ones lanceolate, or sometimes oblong. 



154. C. NicTiTANs, Linn. ; Torr. 8f Gray, FL 1. 2^- 396. Mountain valley, thirty 

 miles east of El Paso.* 



vel rectiusculo sutura ventrali angustissime marginato. — Northern Mexico, Coulter, Gre^^ (who gath- 

 ered it between Monterey and Matamoras). Cerralvo, Wislizenus. Also found by Col. Emory and Mr. 

 Fremont on the Gila, where it is said to be abundant in an arid region. The flowers are rather smaller 

 than in C. Texanum. The legumes two inches long, four or five lines wide, perfectly glabrous, as is 

 the ovary, tardily dehiscent, the ventral suture narrowly, but distinctly and acutely margined. 



* I have the following new Cassias from Northern Mexico : — 



Cassia (Cham^crista) Greggii (sp. nov.) : fruticosa, ramosissima ; ramis puberulis; stipulis subulatis 



