MACLOSKIE : LEGUMINOS^E. 5 I 7 



21. PATAGONIUM MUCRONATUM (Hook. & Arn.) Reiche. 

 Unarmed ' ; racemed. Undershrub 6 cm. high, glandular-viscid. Leaves 

 pinnate, with large subulate-lanceolate stipules, the rachis ending in a 

 spine. Leaflets 5-8 pairs, oblong-lanceolate, mucronate, rigidly pilose. 

 Racemes panicled. Standard erect, hairy outside, maroon-colored. Calyx 

 hairy, its teeth acute. Legume linear-oblong, silky, muricate, 3 4-seeded. 

 (Chili); S. Patagon, by J. B. Hatcher at Rio Chico de la Sta. Cruz, 

 Dec. 30, 1896. 



22. P. MURICATUM (Jacq.) O. Ktze. 



Unarmed. Decumbtnt, glandular-scabrid annual. Leaflets 5-7- 

 jugous, obovate, emarginate, margin scabrid. Pedicels axillary and a 

 terminal raceme. Legumes 4-8-jointed, joints muricate. 



Chubut, in elevated meadows by Golfo de San Jorge. 



23. P. NEGERI (Dusen). 



Armed; not racemed. White-pilose shrubs, with the old branches 

 covered by withering stipules. Branches passing into sharp spines. 

 Leaves with connate stipules on the branchlets and spines ; leaflets 5-6 

 pairs, oblong, entire, thickish, hairy. Flowers solitary in the axils, with 

 white, spreading hairs. Calyx campanulate, its teeth triangular. Corolla 

 orange, its standard with reddish lines, mostly enclosing other parts. 

 Legtime 4-jointed, with long, yellow hairs ; tipped by the recurved style. 

 Leaves 2 cm. long; leaflets 5 mm. 



S. Patagon., Valley of Rio Gallegos. (Nordenskj.) 



24. P. PARVIFOLIUM (Phil.) O. Ktze. 



Unarmed. Suffruticose, low, sparsely puberulous. Stem much branch- 

 ing, decumbent. Leaflets trijugous, small, oblong-linear, narrower base- 

 ward, rounded apically ; petioles naked half-way. Stipules leafy, oblong, 

 acute, connate. Pedimcles axillary, solitary, as long as the naked part of 

 the petiole. Calyx shorter than the peduncle, its segments linear-lanceo- 

 late, as long as its tube. Corolla twice as long as the calyx. Vexillum 

 violet-lined. Pod (?). 



(Andes, near Linares); Patagonia. 



25. P. PATAGONICUM (Speg.). 



Armed ; not racemed. Glabrous or hairy shrub ; its many branches 

 spinescent. Leaves few ; leaflets 2-3 pairs, elliptical or obovate, remote, 



