508 PATAGONIAN EXPEDITIONS I BOTANY. 



N. Patagon., at confluence of RR. Limay and Neuquen. 



15. ASTRAGALUS SANCT/E-CRUCIS Speg. 



Suffruticose perennial, multicipital, stipules connate. All parts with 

 minutely appressed, cinereous pubescence ; branches short. Stipules 

 minutely triangular, connate. Leaflets nearly to base of leaf, 6-8 pairs, 

 glabrous above, plicate, obtuse, small. The axillary peduncles not 

 exceeding the leaves, capitately floriferous. Flowers small. Calyx-teeth 

 as long as the tube. Corolla ochroleucous. Pod narrow. 



S. Patagon., at Monte Leon by R. Sta. Cruz. 



1 6. A. TEHUELCHES Speg. 



Phaca, low, synochreate, glabrate to hoary ; branches subprocumbent, 

 terete. Stipides small, acutely bidentate. Leaves mediocre, one third part 

 of the petiole naked, imparipinnate, with about 6 pairs of plane cuneate, 

 bilobed leaflets, their lobes acute. Racemes axillary, not half as long as 

 the subtending leaf, few-flowered. Calyx scarcely white-puberulous, 5- 

 cleft, teeth subulate-acute, shorter than the tube. Corolla? Legumes 

 refract, sublinear, triquetrous-scaphoid, acute both ways, with obtuse 

 margins, pale-glabrous, scarcely nervulose. 



Chubut, in sandy places along Rio Chico. Allied to A. sanctce-crucis ; 

 but distinguished by the softer, larger, refract pods, and the flat leaflets 

 resembling a goat's cloven-foot. (Speg.) 



1 8. TRAGACANTHA Tourn. (Section of Astragalus 



in Eng. & Prantl.) 



Low shrubs, like Astragalus, of which it is commonly regarded as a 

 section. Stigma not hairy. Hairs of other parts simple. Calyx turbi- 

 nate, with pointed base, sessile. Pod shorter than the calyx, i -celled, 

 mostly i seeded. Leaves odd-pinnate, or even-pinnate and the rachis 

 then ending in a thorn. Stipules connate. 



Species 150, chiefly in Mediterr. region to S. W. Asia. (Fig. in Eng. 

 & Prantl, iii, 3, p. 295.) 



T. PROCUMBENS GLABRESCENS O. Ktze. 



Glabrescent. Patagon. 



