54 New Species of South American Plants 



reaching about half-way to the margin of the disk, the anther 

 nearly twice as broad as long. Stigmas nearly equaling the 

 filaments, the styles broad, subulate. 



Santa Catalina, lower Orinoco, Venezuela, May, 1906. 

 (Rusby and Squires, No. 420.) 



Hippocratea foliosa. 



Younger portions and inflorescence finely puberulent, the 

 leaf-surfaces finely papillose. Branchlets stout, terete, finely 

 nerved, dark-purple, very leafy, the internodes 4 or 5 cm. long. 

 Petioles about i cm. long, stout, sub-terete from widely spread- 

 ing to slightly reflexed. Blades 5 to 10 cm. long, 2 to 5 cm. 

 broad, oblong or oval, with rounded base and an abrupt, short, 

 broad obtuse cusp at the summit, entire, thick, very pale-green, 

 the finely and strongly reticulate venation prominent beneath, 

 slightly so above, the secondaries 5 on each side, strongly ascend- 

 ing and anastomosing near the margia. Cymes axillary and 

 terminal, the latter more or less paniculate, the former shorter 

 or longer than their leaves, stoutly peduncled, mostly ascending, 

 occasionally recurved. Flowers shortly pedicelled, i cm. broad, 

 the sepals 2.5 mm. long, 3 mm. broad, ovate with rounded sum- 

 mit. Petals imbricate, sub-orbicular, 3 mm. long, the margin 

 erose or crenulate. Disk 6 mm. broad, lightly convex, spongy, 

 brown, and with a narrow, whitish, membranaceous margin, 

 adnate to ovary and base of filaments. Stamens 3, the subulate 

 filaments a little exceeding the style, the stigma of which is 

 entire. Anthers 4-celled. 



"A vine, to 40 feet, occasional in dry forest below 1500 feet 

 generally on river banks. Flowers in August and again in 

 November. Specimens from near Bonda, August." (Herbert 

 H. Smith, Colombia, No. 893.) No. 894, from Masinga Vieja, 

 800 feet, is the same. It has young fruits, which are dark 

 purple, obovate with truncate or lightly emarginate summit. 



Rhamnus atroviridis. 



Branchlets, lower leaf-surfaces and inflorescence finely 

 tomentellate and more or less ferruginous. Branchlets short, 

 erect-spreading. Petioles 4 to 8 mm. long stout, the blades 

 3 to 6 cm. long by 1.5 to 3 cm. broad, oval or oblanceolate, with 

 rounded base and cuspidate acute summit, minutely serrulate, 

 thick, dark-green above, yellowish beneath, finely reticulate, 

 the principal veins impressed above, all prominent underneath. 

 Flowers from solitary to five or six in the axils, the fascicles 

 short-peduncled, the pedicels unequal, mostly recurved. Flow- 

 ers about 3 mm. long and broad, the calyx tube nearly hemi- 

 spherical, the teeth broadly triangular-ovate, acute, erect, 

 about as long as the tube. Petals apparently wanting. Sta- 



