Plants Collected in Paraguay. 81 



Discolollilini pulclielllim, Bentli., Ann. Mus. Vind., ii, 106. 

 Grail Chaco (31*7). January. = Balansa 152*7. 



Stylosantlies CjJtiianeiisiSjSw., Svensk.Vet. Akad. HandL, 1789, 296. 



Asuncion (255); Caballero (399 b). December-January. 



A suffruticose plant with strong ligneous roots, prostrate, ascend- 

 ing or erect, 1-5 dm. high. Stems terete, hirsute, with long, spread- 

 ing, yellow hairs. Leaves ternate, on petioles 5-15 mm. long. 

 Leaflets linear-lanceolate, entire, or with minute spiny serratures or 

 cilise, spine-tipped, nearly sessile, with strong white ribs, the midrib 

 hirsute, 15-25 mm. long, and 3-5 mm. broad. Stipules connate 

 with petioles for half their length, 3-5 nerved, more or less hirsute, 

 tipped with 2 hirsutely haired, stout awns. Flowers in close heads, 

 small, yellow; bracts 3-pronged, hirsute or pubescent, looking much 

 like the stipules. Pods flattish, with a long curved beak, man}^ 

 specimens, at least, containing only a single seed. 



The variety in my specimens has much fewer leaves, narrower 

 and longer (2-4 cm. long), and only pubescent bracts, but perhaps 

 it is not the var. gracilis of Vogel. It seems, however, to vary 

 decidedly from the type. 



Stj^losantlies Guianensis^ Sw., var. gracilis (H. B. K.), Vog. Lin- 

 nsea, xii, QQ. 



Caballero (399). January. 

 Aracbis prostrata, Benth., Trans. Lin. Soc, xviii, 159. 



Near "Villa Rica (181). January. 



A small prostrate shrub, with tough, woody roots which run deep 

 in sandy soil, and stems 3 dm, or more in length. It has a bright 

 yellow flower with a large spreading standard, the keel with its 

 parts coalescing so as to show hardly any lines of division, solitary 

 on peduncles 3-8 cm. long. Leaves with 2 pairs of pinnae, which 

 are oblong or obovate, mucronulate, the veins resembling those of 

 some species of clover, parallel and running from the midrib at an 

 angle of 45° to the margin. It flowers very freely, but seldom 

 shows any fruit. Common in old fields all the way from Asuncion 

 to Yilla Rica. November-January. 



Zornia dipliylla (L.), Pers., var, gracilis (D.C.), Benth., Mart. Fl. 

 Bras., XV, pt. 1, 83. 



Gran Chaco (361); Caballero (398 a). December-January. 

 Stem slender, 3-5 dm. in height, from tough, woody roots, 

 Annals N. Y. Acad. Sci., VII, Dec. 1892.— 6 



