2604 - LEAFLETS oF PHILIPPINE BOTANY (Vor. VII, Arr. 114 
HH Rivea apoensis Elm. n. sp. 
A lofty tree climber; stem curved, branched along the 
tree trunk, terete, 7.5 cm thick, flexible; wood conspicuously 
ringed, soft, yellow, with a fetid odor and bitter taste; bark 
thin, brown, finely checked longitudinally; branches green 
er yellowish so, slender, forming interlaced masses, yellow- 
ish gray puberulent, occasionally with long strigose hairs. 
Leaves usually conduplicate on the upper glabrous dark green 
and semilucid surface, much lighter green or even purplish 
beneath and sparsely hairy when young, the acute or acumi- 
nate tips strongly recurved, the margins entire and subinvo- 
lute in the dry state at least, ovate, quite variable in size, 
base broadly rounded and usually shallowly cordate, the larg- 
er blades 1 dm long, 6.5 cm wide below the middle, al- 
ternatingly scattered along the  branchlets, the upper ones 
usualy smaller, curing blackish and brown on the upper 
and lower surfaces; midrib finely grooved and glabrous above, 
prominent and strigose beneath; lateral nerves 7 to 9 pairs, 
oblique, less prominent, hairy, the basal ones closer together 
and divaricate, reticulations very obscure; petiole at first 
strigose, ultimately glabrate, 2 to 4 cm long, ascending, 
green, terete and grooved along the upper side. Inflorescence 
arising from the uppermost leaf axils, ascending, 3 to 5 
em long or longer; peduncle solitary, yellowish gray hairy, 
stout, branched toward the top only; branchlets densely 
hairy, very short and thick, few, mostly ascending; pedi- 
cels 5 mm long or less, similar in vestiture or even more 
hairy; buds small, ovoidly globose, olivaceus hairy, subtend- 
ed by a whorl of 3 setaceous bracts; bract linear to lanceo- 
late, setaceously pointed, subequal, averaging 1 cm long, 
puberulent except the glabrous ventral side, caducous; calyx 
O-segmented, with olivaceus appressed hairs, 5 to 7 mm 
long, imbricate, the outer 2 ovately oblong, with entire 
margins and obtuse points, the inner 3 with thinner more 
glabrous sides and irregularly truncate or even appendiculate 
at the apex, all glabrous on the inner sides and outer pro- 
tected portions, more or less veiny; corolla whitish on the 
outside, purplish or violaceus on the inner glabrous side, 
