498 PATAGONIAN EXPEDITIONS I BOTANY. 



* 



pedicel, sessile in 2's or 3's. Lower calyx- segment longer, 3-toothed. 

 Standard greatly exceeding the wings, dorsally hoary. 

 N. and S. Patagon. 



6. ANARTHROPHYLLUM SUBANDINUM Speg. 



Amerophyllum. Low, perennial, densely fastigiate, branching, silky- 

 silvery. Leaves not divided, rigid, crowded. Stipules ovate to ovate- 

 lanceolate, equalling the scarcely narrower limb, and like it mucronate- 

 spinulose. Flowers acrogenous, solitary ; calyx hoary-silvery, trifid, the 

 lower lip 3-toothed, as long as the concolorous pedicel. Corolla twice as 

 long, yellow, the standard equalling the wings and keel. Legume sub- 

 linear-lanceolate, appressed, silvery-silky, its valves after dehiscence spirally 

 twisted. 



Chubut, in dry hills near Nafofo-cahuellu. 



A. SUBANDINUM NAHUELHUAPIENSIS Speg. 



Stouter than the species, 40-70 cm. high, branches long, slender. 

 Leaves on ends of branches relaxed, and flowers solitary in their axils. 

 Patagon., in rocky hills by Rio Collon-cura. 



7. A. TONINII O. Ktze. (A. rigidum toninii Speg.) 

 Petals yellow, subequal, pilose ; keel deflexed, mostly taller than the type 

 (1-150 cm.), leaf-segments longer than in A. rigidum, but not separable. 

 Patagonia, near Trelew and near Lago Nahuel-huapi. 



ii. LUPINUS Linn. Lupine. 



Herbs, with digitate leaves, stipules adnate to the petioles, and with 

 terminal racemes or spikes of showy flowers. Calyx deeply 2-lipped. 

 Sides of standard reflexed. Keel falcate, pointed. Stamens 10, mona- 

 delphous ; anthers alternately longer and shorter. Pod flat, often nar- 

 rowed between the seeds. 



Species 100, in temperate and warm regions. 



I. L. BRACTEOLARIS DesrOUSS. 



Annual, with ovate-lanceolate stipules, and obovate-oblong leaflets, 

 villous on both sides. Flowers alternate, pediceled, bracteolate. Upper 

 calyx-lip bipartite ; lower 3-cleft. 



(Montevideo.) 



