2606 Leariers or Puitieprxe Botaxy (Vor. VII, Agr. 114 
pairs, more numerous toward the base and subdivaricate, 
the upper ones oblique, nearly straight, cross bars very faint; 
petiole 1 to 3 cm long, deeply caniculate along the upper 
side, short hirsute. Inflorescence terminal, 5 to 10 cm long, 
alternatingly branched; peduncles slender, 3 to 8 cm long, 
corymbosely branched toward their distal ends; branches 
densely avellaneus pubescent, usually shorter than 11 cm, 
subtended by caducous bracts; green bracts 1.5 cm long, 
lanceolate, slenderly pointed, more densely pubescent on the 
dorsal side; pedicels 3 to 5 mm long, comparatively thick, 
short but densely pubescent; calyx segments 5, strongly im- 
bricate, 5 to 7 mm long, ovately rotund, the outer or ex- 
posed sides canescent, the inner ones glabrous and thinner 
in texture, the marginal portion subhyaline, apex broadly 
obtuse or subtruncate, as broad as long, minutely punctate; 
corolla 3 cm long, usually divided into 5 ligulate segments 
to below the middle where it is bulged; the lower portion 
tubular, 3 mm across, glabrous externally and internally; 
segments 1.5 mm wide, 1.5 cm long at least, glabrous on 
the inner side, densely yellowish green hairy on the back 
except toward the base, light lilacinus when fresh, obtuse at 
the apex, ultimately spreading; stamens 5, attached to the throat 
of the tube 1 cm from the base, alternating with the seg- 
ments, erect; anthers sessile, the entire ribbon-like filament 
adnate to the corolla tube clear to the base, 3 by 4 mm, 
distinctly verrucose especially along the marginal sides, with 
a conspicuous outwardly curved beak; ovary obovoid, 4 to 
5 mm long, 3.5 mm thick across the top, the greater por- 
tion surrounded by a glabrous and cartilaginous membrane, 
its crown rounded; style slender, 1.5 or more cm long, 
bearing a minute white stigma, also glabrous, disk-like at 
the base. 
Type specimen number 13351, A. D. E, Elmer, Cabadba- 
ran (Mt. Urdaneta), Province of Agusan, Mindanao, July, 1912. 
Also associated with other vines of similar habits in the 
woods along the dry and well drained ridge or knoll called 
Giwantanan at approximately 2000 feet altitude. The Man- 
obo name is '"Cawilan."" 
It bas a close affinity to yet it is specifically distinct 
from Rivea apoensis Elm. 
