MULFORD EXPLORATION OF THE AMAZON VALLEY 



259 



tended into setaceous awns, alternating Avith the teeth, the awns 

 free before as well as after (lowering. After flowering, the mouth 

 of the calyx somewhat contracted, but the limb more or less 

 deeply 2-cleft. Petals subequal, unguiculate, pilose. Stamens 10, 

 irregularly subequal, all perfect, nearly distinct, free, live of the 

 filaments slightly dilated at the base, the anthers short, oval. 

 Stipe of the ovary short, adnate to the disk. Ovary oblong, 

 densely pilose, several-ovuled. Style elongate, sigmoid, very 

 thick, the stigma truncate. Fruit not known. 



A cirrhiferous climber, of sympodial growth, the pseudo- 

 branches opposite the leaves and terminating in simple racemes, 

 the pedicels setaceous-bracted, the leaves 2-lobed, the stipules 

 caducous. Genus related to ScJmella. 



By those who believe in maintaining the integrity of the 

 genus Bauhinia, as treated ])y Bentham and Taubert, this plant 

 will doubtless be referred to that genus, in spite of its conspicu- 

 ous long awns. I can not doubt, however, that the genus Bau- 

 Jiinia will in the future be resolved into a number of genera. If 

 so, this must certainly be held distinct. 



Cardenasia setacea 



Puberulent on the young branches, etc., the flowers pilose. 

 Stems very slender, angled, unarmed, cirrhiferous, the tendrils 

 occasionally bearing a few floAvers. Stipules not seen. Tendrils 

 strongly circinate, flattened, about 1 to 1.5 mm. wide. Petioles 

 to 4 cuL long, very slender, thickened at the summit. Blades to 

 10 cm. long and al30ut equally Avide, strongly cordate Avith regu- 

 larly rounded lobes and obtuse sinus, divided three fourths of the 

 Avay, very thin, glabrous, the slender \^enation prominent on the 

 upper surface. Divisions of the leaf almost regularly lance- 

 ovate, entire. Racemes terminating the pseudo-branches short 

 and broad, densely floAvered. Pedicels about 5 mm. long, very 

 slender, bracted near the summit, the ])racts longer than the 

 pedicel, linear or almost filiform, acute. Calyx nearly 1 cm. long, 

 strongly ribbed, the teeth proper very small, five of the ribs ex- 

 tended into setaceous aAvns, Avhich are subequal and about as long 

 as the tube. Petals nearly 2 cm. long, spatulate, subequal, pilose, 

 especially on the claAV, Avhich is nearly as long as the limb, 

 strongly nerved. Stamens 10, perfect, subequal, about as long as 

 the calyx-tube. Ovary densely pilose, the style nearly as thick 

 as the ovary, curved, blunt. 



