666 VaIL: STUDIES IN THE ASCLEPIADACEAE 
infolded lateral lobes: stigma rounded at the apex, scarcely 
conic: pollinia oblong; caudicles broad and short, with a deep 
orange-yellow spot along the upper margin; corpuscle large, 
bright red. Fruit not seen. (/ig. 4.) 
Type locality, Cartagena, U. S. Colombia. 
GuaTEMALA: Patulul, Depart. Solola, alt. 3000 pp., Heyde et 
Lux, 6349, January, 1894. 
VENEZUELA: near Tovar, Fendler, 1055 (in herb. Gray). 
5. Rouliniella lignosa sp. nov. 
A woody vine. Stems pale grayish-brown, glabrous : branches 
2-3 dm. long or more, somewhat angled, minutely tomentulose in 
lines, becoming glabrate: leaves opposite, on petioles 1.5-4 cm. 
long ; blades ovate or sub-lanceolate, cordately hastate, 3-6 cm. 
long, gradually acuminate, rather thick, yellowish-green, glabrous 
above, minutely pubescent on the veins beneath; basal lobes 
rounded, short, with an open sinus, glandulose at the base of the 
midvein: peduncles longer 
than the petioles, pubescent: 
racemes slender, 5—7 cm. long, 
exceeding the leaves, 9-15- 
flowered : buds ovate: bract- 
eoles very small, setaceous- 
pedicels 7-9 mm. long, slender, 
pubescent: calyx -segments 
ovate-lanceolate, 1 mm. long, 
puberulent with a minute gland 
in each sinus: corolla 5-parted 
to near the base, dull yellowish- 
purple, acute in the bud ; seg- 
. ments 6 mm. long, acute, 
minutely hispidulous on the inner surface, with a callous ridge 
within the membranous whitish revolute margins: crown 
attached to the base of the column, 5-parted to the base; Se¢S~ 
ments very thin, with somewhat involute lateral margins, PrO- 
longed into a long-ligulate obtuse or truncate apex, which is nearly 
as long as the corolla-segments: anther-wings very narrow an 
slender, not salient at the base: anther-tips ovate, inflexed over 
_ the barely conic, obscurely 5-rayed stigma: pollinia broadly ob- 
} long-ovoid ; caudicles broad ; corpuscle obtuse at the apex. Fol- 
licles not seen. (Fig. 5.) 
Mexico: State of Jalisco, Rio Blanco, 1886, Palmer, 3/4: , 
(herb. Columbia University): “Cynanchum parviflorum ae. 
FG, 4. 
eae 
