336 MEMOIRS OF THE XKW YORK BOTAXICAL GAIiDEX 



Nephradenia pendula 



Lower portion of stem very minutely scabrellate, and the 

 peduncles very minutely puherulent. Stems 4 to 6 dm, hi^h, 

 erect, simple, slender, green, finely eostate, the internodes a little 

 longer or a little shorter than their leaves. Leaves opposite, 



2 to 4 cm. long, appearing 1 to 2 mm. wide in their revolute state, 

 sessile, linear or lance-linear, erect, rigid, very acute and nearly 

 pungent, thickish, entire, the margins strongly revolute, strongly 

 keeled, the numerous secondaries elevated so as to give a nodose 

 feeling to the touch. Peduncles in one, occasionally in both 

 axils, recurved, filiform, 2-flowered, 7 or 8 mm. long, a little 

 longer than the pedicels, which are slightly unequal, jjendulous, 

 miiRitely bracted at the base, sharply angled or narrowly winged, 

 thickened at the summit. Calyx rotate, 5 mm. broad, membra- 

 naceous, greenish, deeply 5-lobed, the lobes eciual, ovate, ob- 

 tusish. Corolla white, In-oadly canipanulate or nearly hemi- 

 spherical, deeply 5-lobed, the lobes oval, obtuse, 7 mm. long. 

 Crown of 5 scales, which are erect and adnate by their face to 

 the entire length of the stamen-tube, thin, rigid, the lower por- 

 tion bearing a broad, thick keel from the center. Pollinia above 

 the level of the stigma, horizontal, l^orne on very short pedicels 

 close to the short erect corpuscle. 



Ixiamas, 1,000 to 1,500 feet, M. Cardenas, December 15, 1921 

 (no. 1907). "In sunny places, in clay-soil, on pampa. Plant 2 to 



3 feet high, with white flowers." 



C X VOLVULACEAE 

 Jacquemontia bifurcata 



Tomentellate throughout. Stems slender, tough, terete, 

 twining. Petioles to 8 mm. long, rather stout. Blades to 4 cm. 

 long and half as wide, oblong, with rounded base and blunt, 

 apiculate summit, entire, thick, drying brownish, softly tomen- 

 tellate on both surfaces, the secondaries about 7 or 8 on each 

 side, ascending, nearly straight, strong and prominent beneath, 

 like the midrib. Peduncles longer than the leaves, densely many- 

 flowered at the summit, mostly bifurcated. Calyx 4 mm. long, 

 the sepals sul)equal, the thrc-e outer a little wider, ovate, acute 

 or obtusish, thickish. Corolla about twice as long as the calyx, 

 nearly 1 cm. broad, bright-blue. Dissection material wanting. 



Espia, 3,500 feet, H. H. Rusly, July 20, 1921 {no. 113). 



