86 
MERRILL. 
inner face slightly concave, not sulcate, somewhat rugose, brown, 
the albumen ruminate. 
Luzon, Bontoc Subprovince, Malamey, Vanoverbergh 795 (type), August, 
1910, in forests, altitude about 1,550 m, with flowers, a second collection 
in December, 1910, with immature fruits: Benguet Subprovince, Pauai, 
Bur. Sci. 8410 McGregor, June, 1909, with very immature flowers, altitude 
about 2250 m; Mount Tonglong, Bur. Sci. 5125 Ramos, December, 1908, 
with immature fruits, altitude about 2,100 m, Williams 1336, October, 1904: 
Province of Tayabas, Mount Binuang, Bur. Sci. 9434 Robinson, August, 
1909, with ? flowers; Lucban, Mount Banajao, Elmer 7796, May, 1907, 
with mature fruits, distributed as Tetrastigma lanceolarium Planch.: 
Province of Bataan, Mount Mariveles, Bur. Sci. 1560 Foxworthy. Probably 
also should be referred here Elmer 10867 from Mount Apo, Mindanao, 
distributed as Tetrastigma pergamaceum Blume. 
Apparently allied to Tetrastigma pergamaceum Blume, but differing 
from that species, as described, in its terete stems, its 3- to 5-foliolate 
leaves, never 1-foliolate as is usually the case in Blume’s species, and in 
its axillary, not leaf-opposed cymes. The species is not typical of Tetras- 
tigma, as the stigmas are perfectly circular in outline, not at all lobed, 
but has been placed in the genus as it agrees in other details, especially 
in its 4-merous flowers, and in its fruit and seed characters. 
Tetrastigma philippinense sp. nov. 
Species T. loheri similimis et ut videtur valde affinis differt 
petalis extus distincte pubescentibus. 
A tendril-bearing dioecious vine reaching a height of 10 m, 
and the trunk a diameter of 2 cm, glabrous except the inflores- 
cence. Branches terete, brownish, smooth, slender. Leaves 
3-foliolate, their petioles 1 to 2.5 cm long; leaflets lanceolate, 
submembranaceous to coriaceous, dull or slightly shining, of 
about the same color on both surfaces, the middle one longer than 
the lateral ones, equilateral, obtuse, rounded, or subacute at the 
base, the lateral ones somewhat falcate, inequilateral at the 
usually rounded base, all acuminate at the apex, margins often 
slightly undulate, distantly serrulate-crenate, the teeth usually 
mucronulate, 6 to 16 cm long, 1.5 to 4.5 cm wide; lateral nerves 
7 to 10 on each side of the midrib, not prominent, the reticula- 
tions lax, obsolete or indistinct; petiolules of the middle leaflets 
1 to 2 cm long, of the lateral ones 5 mm or less. Tendrils simple, 
10 to 15 cm long or more. Inflorescence axillary, pubescent, 
about as long as the petioles, compound, umbellately corymbose, 
the flowers subumbellately arranged on the ultimate branchlets. 
Female flowers: Calyx obscurely 4-toothed, about 1.5 mm in 
diameter. Petals 4, oblong, pubescent externally, obtuse, some- 
what cucullate at the apex, 2 to 2.2 mm long. Ovary ovoid, 
glabrous, 1.5 mm long, slightly contracted upwards; stigma 
