86 New Species of South Amebican Plants 



cm. long, 5 mm. broad, as pressed, strongly contracted at the 

 summit, the limb 2.5 cm. broad, the stamens attached at the 

 base of the constricted portion, the filaments very short, the 

 anthers 6 mm. long, sharply acuminate at the summit and base. 

 Stigma bi-penicillate. Calyx-lobes ovate, as long as the disk. 

 Glands 5, triangular-ovate, acutish, thin. Disk, of 5 scales, 4 

 of them in connate pairs, the fifth free, their summits rounded. 



Santa Catalina, lower Orinoco, Venezuela, May, 1896 (Rusby 

 and Squires, No. 302.) 

 Echites bicorniculata. 



Younger portions and lower leaf -surf aces puberulent-downy. 

 Stems slender, terete. Petioles 6 to 8 mm. long, channeled 

 above, and bearing a pair (or 4) of subulate, acute, cartilaginous 

 glands or horns at the summit. Blades 5 to 7 cm. long, 2.5 to 3 cm. 

 broad, oblong-ovate, with slightly cordate base and mucionate 

 summit, thickish, the margin thinly revolute; venation obscure 

 on both surfaces, the secondaries 6 on each side, spreading, 

 lightly falcate. Peduncles a little longer than the petioles, 

 stout, the bracts short, broadly ovate, stoutly keeled and mucro- 

 nate, the cyme very shortly bifid, the pedicels short, stout, 

 angled. Calyx campanulate, 3 mm. long, 4 mm. broad, the 

 lobes ovate, obtuse. Corolla-tube 6 to 8 mm. long, constricted 

 above, the limb 1.5 to 2 cm. bioad. Throat esquamate, pilose, 

 the anthers 4 mm. long, acuminate, short-acuminate and obtuse 

 at the base. Membranous annulus below the stigma large. 

 Calyx multi-glandular within, the disk of 5 lobes which exceed 

 the ovaries. Style thickened toward the base. 



"A twining vine, to 20 feet, in thickets, on plains near the 

 sea-coast. Cienaga, September 10." (Herbert H. Smith, 

 Colombia, No. 1640.) 



Dipladenia alba-viridis. 



Young portions and lower leaf surfaces puberulent, the 

 stems slender, terete, reddish. Petioles i to 2.5 cm. long, stout, 

 sulcate, the blades 7 to 12 cm. long, 4 to 9 cm. wide, ovate-oval 

 with cordate base, the lobes rounded, and with abruptly short- 

 pointed and very acute summit, thick, deep-green and drying 

 brownish underneath, the venation prominent underneath, the 

 secondaries about 8 on each side, widely spreading, then falcately 

 ascending near the margin, connected by slender tertiaries. 

 Peduncles (but one seen) 3 cm. long, slender, the flowers 4, 

 simply racemed, the bracts small, subulate and acuminate. 

 Pedicels i cm. long, upwardly thickened. Calyx 5 mm. long, 

 rather deeply 5-lobed, the lobes thick, ovate and acuminate, 

 the glands several, minute, almost setose. Disk unilateral, 

 consisting of two 2-lobed thick ligules and another half-ligule with 

 rounded summits, about half the length of the two distinct 



