Marca 27, 1915] Two Hounprep Twenty Six New Species—] 2605 
the basal one half broadly tubular and glabrous on the out- 
side, 3 dm long, ultimately splitting into 5 narrowly linear 
recurved and twisting segments, olivaceus short hairy on the 
dorsal side of the segments; stamens 5, inserted upon the 
corolla tube 4 mm from the base, glabrous; filament 
thin, flat, a trifle wider at the base where it is inserted 
upon a 4 mm long papillate tongue or fleshy expansion, 1 
em long or longer with the free expanded portion; anther 
3 mm long, one half as wide, oblong, rounded at the apex, 
auriculately lobed at the base, basifixed; ovary 1.5 mm in 
diameter, subglobose, inserted upon a shallow cup shaped 
glabrous disk; style also glabrous, equally or exceeding the 
stamens, terete, thinnest at the apex; stigma 2-lobed at the 
base, of a 3 mm thick mass and prominently papillose. 
Type specimen number 11231, A. D. E. Elmer, Todaya 
(Mt. Apo), District of Davao, Mindanao, July, 1909. 
Associated with other climbing vines and forming dense 
tangled masses about the tree trunk or its support. Collect- 
ed in dry forests at 1500 feet altitude.  ''Dalumosip"' is 
its vernacular or Bagobo name. 
At once distinguished from Rivea luzonensis Hall. by its 
different flowers. 
/| Rivea urdanetensis Elm. n. sp. 
Climbing and sprawling shrubs; stem twining, 1.75 cm 
thick or thicker, freely rebranched toward the top; main 
branches slender, somewhat drooping, covered with smooth 
dull brown bark; wood with a large pith, the peripheral 
portion greenish white, the inner mass yellowish brown; twigs 
green, avellaneus puberulent especially the young tips. Leaves 
upon ascending petioles, alternatingly scattered along the twigs, 
horizontal, submembranous, nearly flat but tips very sharply 
acuminate and recurved, eutire, base truncately rounded or 
Shallowly cordate, curing equally brown on both sides, the 
upper ones much reduced, the lower or larger lamina 1 dm 
long by 8 em across toward the base, ovate to cordate, 
velvety pubescent especially on the nether side, paler be- 
neath in the fresh state; midrib conspicuous beneath, canic- 
ulate above; lateral nerves all similar in prominence, 7 to 9 
