January 11, 1911] New AND NorEWORTHY RUBIACEAE 985 
UNCARIA Schreb. 
Uncaria velutina Hav. in Journ. Linn. Soc. XXX; 84, 
1897. Nauclea clavisepala Merr. in Philip. Journ. Sci. III; 
266, 1908. Uncaria clavisepala Elm. Leaf. Philip. Bot. I; 350, 
1908. 
A rare species, and has only been collected by Cuming, 
Vidal and by myself. 
Uncaria nervosa Elm. n. sp. 
Scandent upon large trees; branches all along, rigid, 
slender, green, angular, descending or drooping, the stem 
2.5 em. thick, smooth. Leaves horizontally spreading, flat 
or only the short abruptly acute tips recurved, shining dark 
green on the upper glabrous surface, much lighter on the 
more or less pubescent under surface, base rounded, ellip- 
tish oblong, margins entire, 12 or more cm. long, 7 or 
more cm. wide across the middle; petioles stout, curved 
upwardly, glabrous, 1 cm. long; stipules nearly 1.5 cm. 
long, submembranous, brown, broad, obtusely rounded, 
caducous; nerves very prominent beneath, sunken on the 
upper side, 9 to 12 pairs, oblique, subparallel, tips curved 
and only obscurely united, cross bars numerous, relatively 
prominent, all covered with dirty brown hairs. Flowers not 
seen; peduncles 5 cm. long, the upper portion brown pul- 
verulent, bracteate at the middle or a trifle above this, the 
basal portion very stout, flattened, smooth and transformed 
into a hook; the small receptacle brown hairy;  pedicels 
slender, 1.5 cm. long, soft ferruginous pubescent; capsule 
equalling the pedicels in length, fusiform, 2-celled, brown 
pubescent, longitudinally striate, terete, nearly 4 mm. thick 
across the middle; seeds numerous, light brown, elongately 
lenticular, each end with a 3 mm. long hyaline tail, one 
of which is nearly parted into 2, the other is entire and 
linear. 
Type specimen 11794, A. D. E. Elmer, Todaya (Mt. Apo), 
District of Davao, Mindanao, September, 1909. 
Scandent with other vines along a large tree trunk up 
to its lower limbs, in a fertile densely humid and thickly 
