LEGUMINOS.E. 427 



Adesmia Echinus of Presl, Symb. Bot. 2, p. 14, t. 61, is probably 

 only a form of A. horrida, with the loment reduced to a single joint. 



6. Adesmia trijuga, Gillies. 



Adesmia trijuga, Gillies ; Hook. & Am. Bot. Misc. 3, p. 191 j Gay, Fl. Chil. 2, 

 p. 200. 



Hab. High Andes of Chili : on La Dessa, above Santiago, near the 

 snow-line. (In fruit : a form with rather large leaflets.) 



54. STREPTODESMIA, Nov. Gen. 



Calyx persistens, quinquenervis, quinquefidus, tubo campanulato, laciniis 

 subcequalibus. Corolla Adesmige, sed emarcida persistens. Stamina 

 (10, libera) Adesmige. Ovarium A-Q-ovulatum : stylus filiformis, 

 adscendens. Lomentum corolla marcescente inelusum, sutura carinali 

 excisum, Z-^-articulatum ; articulis subglobosis, a sutura vexillari con- 

 tinua filiformi stylifera mox contorta persistente secedentibus, bivalvi- 

 bus, rnonospermis, valvulis Imvibus membranaceis. Sernina subglobosa. 

 — Suffrutex intricato-ramosissimus, canescens; rarnulis spinescentibus ; 

 foliis abrupte pinnatis paucijugis ; racemis panicidatis brevibus, rhaclil 

 spinescente persistente ; corolla lutea. 



1. Streptodesmia canescens, Sp. Nov. (Tab. 47.) 



Hab. Rio Negro, North Patagonia ; on sand-hills ; common. 



A rigid, shrubby plant, a foot or two in height, canescent with a fine 

 and close silky pubescence, intricately much branched; the branchlets 

 spinescent, slender, glabrate. Stipules minute, silky. Leaves abruptly 

 pinnate, or perhaps sometimes with a terminal leaflet, half an inch 

 long, including the petiole, often fascicled on short spurs. Leaflets 3 

 pairs, or sometimes 2 or 4 pairs, crowded, oblong or oval, acutish or 

 obtuse, not retuse, minute (a line or a line and a half in length), 



