Dioscorea] X. DIOSCOREACEE, 37 
GoLuNGo ALTO,—A very widely climbing herb, draping and hanging 
from palms ; tubercles often but not always formed in the leaf-axils. 
In palm woods on the river Quiapoza near Sange. April 1855. No. 4038. 
2. D. andongensis Rendle sp. nov. 
A herb generally with a woody base, stem broadly winged and 
furrowed, (in the flower-bearing shoots of which the herbarium 
specimen consists, the stem is much twisted and furrowed but not 
winged,) sparsely ferruginously hairy ; leaves alternate, exactly 
cordate with a long apiculus, shorter than the internodes, leaf- 
stalk generally shorter than the blade, sparsely puberulous, blade 
9-nerved, the lowest nerve on each side giving off a strong 
branch just above its base ; lower surface softly densely tomen- 
tose on the flowering shoots, very thinly hairy on the single 
fruit-bearing shoot ; male spikes simple, 4 in the axil of each 
leaf, shorter than the leaf, peduncle, bracts and flower-buds with 
a short dense ferruginous indumentum ; flowers solitary, bracts 
triangular ovate, almost as long as the flowers, perianth broadly 
cyathiform, segments subequal, outer ovate blunt, hairy on back, 
inner ovate-oblong with an obtuse to rounded apex; stamens 
6 fertile, subequal, inserted on the base of the perianth-seg- 
ments, anthers oblong, of the outer twice as long as of the 
inner, ovary-rudiment conspicuous 6-denticulate; female spike 
sometimes longer, flowers solitary, sessile, bracts about half the 
length, ovary linear-oblong, ferruginously hairy, bluntly edged in 
flowering-stage becoming winged as the perianth withers, perianth- 
segments subsucculent, with more membranous apex (outer 3) 
and margin, more or less oblong narrowing at the apex, the inner 
3 slightly narrower with a thickened fleshy apex, spotted with 
red and sparsely hairy except near apex and margins, staminodes 
6, cordate, sessile at base of segments, style-column with large 
recurving stigmas, about half the length of the segments. Unripe 
fruit oval, with membranous wings. 
Leaf-stalks 3 to 5 in. long, blades including apiculus 4 to 73 in. 
young male spike 4 in., the female reaching 1 ft.; bracts on male 
spike 14 line long, bracteole subulate 2 line, perianth-segments 
14 line, stamens # line ; ovary 2 to 3 lines long, perianth-segments 
14 to 12 line, style and stigmas about 2 line. Unripe fruit 2 in. 
long by half as broad. Near D. Preussii Pax, but distinguished 
by the ferruginous tomentum of leaves and inflorescence, rather 
narrower perianth-segments, and 6 anther-bearing stamens. 
Punco ANDoNGo.—Flowers greenish. Completely draping the larger 
trees with its foliage. Plentiful in small woods among the huge rocks 
between Catete and Luxillo. In fl. middle and end of Jan. 1857. 
No. 4040. 
3. D. polyantha Rendle sp. nov. 
A suffruticose high and wide climber, branches densely ferru- 
ginously stellato-tomentose, the tomentum disappearing in the 
older shoots, leaves alternate generally longer than the inter- 
nodes, long-stalked, petioles shorter than the cordate acute 7-nerved 
