16 
ROBINSON. 
.the rachises pubescent like the stem; glomerules sessile, paired, the pairs 
3 to 4 'mm in diameter, t up to- 5 mm apart, stigmas not included in these 
measurements : pistillate perianth about 1 mm long, more or less pubes- 
cent, conforming to the shape of the ovary and adnate to it, the apex 
very shortly and obscurely 4- or 5-lobed ; stigma 3 to 4 mm long, densely 
pubescent except at the extreme base, deciduous. 
A woody vine, widely branching, the branches terete or toward the 
apex obscurely obtusely angled, the bark brown, glabrescent near the 
base, elsewhere densely covered with short white and ferruginous pubes- 
cence; petioles and lamina of leaves variable in length, apparently with- 
out system, the former 3 to 16 mm long,' pubescent like the branches, the 
lamina coriaceous, rigid, oval or narrowly oval, 4.2 to 12 cm long, 24 to 
67 mm wide, the base varying from acute to subcordate, the margins 
entire or subentire, the apex merely rounded or short-acuminate, 3- 
.nerved, the nerves extending at least four-fifths of the length of the 
lamina, often almost to its apex, with numerous anastomosing veins 
connecting the costa and the nerves, conspicuous on the under surface, 
but with only one or two primary veins and they near the apex, the 
reticulations slightly pubescent and brownish in color, forming a strong 
contrast to the dense white tomentum of the interstices, upper surface of 
young leaves-pilose, at length glabrous, except on the principal veins; 
stipules united for half their length, nearly 4 mm long, white-pubescent, 
early deciduous. 
Mindanao, Lake Lanao, Camp Keithley, Mrs. Clemens 676 (type) : District of 
Davao, Sibulan River, Elmer 11776. - 
Closely allied to P. argenteus (Forst.) 1 Wedd., differing in the habit, 49 the 
shape, apex, and somewhat in the pubescence of the leaves, and the fascicled 
spikes. It is curious that three out of our six species should be seandent, whereas 
of the eight enumerated by Weddell only P. rotundifolius (Poir.) Wedd., from 
Mauritius, is so described; also, that while we have two closely allied species 
with free stipules, the only other that approaches them should also be the closest 
to them in other characters. 
Local name (Apo) : ramerame. 
6. Pipturus argenteus Wedd. in DC. Prodr. 16 1 (1869) 235. 19 
Urtica argentea Forst. Prodr. (1784) 65. 
Lumbucan Island, (near Balabae), Merrill 7 185, Phil. PI. 1/01 Merrill. 
Sumatra to Australia and the Pacific Islands. 
17. OREOCNIDE Miq. 
Leaves pinnately veined 1. 0. rub'escens 
Leaves distinctly 3-nerved - , - 2. 0. trinervis 
1. Oreocnide rubescens Miq. Ann. Mus. Lugd.vBat. 4 (1869) 306. 
Urtica rubescens Bl. Bijdr. (1825) 506. 
FI. Austral. 6 (1873) 185. 
