20, 4 Merrill: Noteworthy Philippine Plants, XVII 387 
RUBUS HETEROSEPALUS sp. nov. § Malachobatus, Moluccani. 
Frutex scandens, ramis et ramulis et subtus foliis densissime 
subfulvo-tomentosis aculeatisque; foliis suborbicularibus, cor- 
iaceis, 5-lobatis, 12 ad 15 cm longis, basi cordatis, apice acutis 
vel leviter acuminatis, supra rugosis, olivaceis, petiolo 3.5 ad 
5 cm longo; stipulis deciduis, liberis, laciniatis: inflorescentiis 
terminalibus, paniculatis, 15 ad 20 cm longis; floribus con- 
fertis, magnis, calycibus 3.5 em diametro; sepalis 2 lanceolatis, 
circiter 5 mm latis, acuminatis, integris, 3 obovatis, profunde 
laciniatis, 10 ad 14 mm latis: bracteolis obovatis, circiter 15 
mm longis, usque ad 4 laciniatis, laciniae circiter 15, lineari- 
lanceolatae. 
Scandent, woody, the branches, petioles, and lower surface of 
the leaves very densely and uniformly tomentose with brownish 
to fulvous hairs, the branches, branchlets, petioles, midribs, and 
primary nerves on the lower surface supplied with numerous, 
rather slender, slightly curved spines, 1.5 to 3 mm in length. 
Leaves simple, orbicular-ovate in outline, coriaceous, distinctly 
5-lobed, the sinuses rather shallow, apex acute or slightly 
acuminate, base rather deeply cordate, 12 to 15 cm long, 11 
to 13 cm wide, the upper surface olivaceous, rugose, the midrib 
and primary nerves rather densely hirsute, the surface with 
scattered, similar indumentum; petioles 3.5 to 5 cm long; stip- 
ules deciduous, densely pubescent, free, 10 to 14 mm long, 
laciniate. Inflorescences terminal, 15 to 20 cm long, panicu- 
late, the lower branches about 7 cm long, all parts densely 
pubescent, the rachis and branches aculeate. Flowers numer- 
ous, crowded, the subtending bracteoles obovate, about 15 
mm long and wide, divided nearly to the midrib into about 15 
linear-lanceolate laciniae. Calyx when spread about 3.5 em in 
diameter, the sepals all densely pubescent, two narrow, lanceolate, 
acuminate, entire, about 1.5 cm long, 5 mm wide below; three 
obovate, deeply laciniate, about 18 mm long, 10 to 14 mm wide. 
Petals not seen. Stamens numerous, about 5 mm long, gla- 
brous. Fruit red, the achenes numerous, inequilateral, obovoid, 
about 4 mm long; style about 5 mm long. 
LUZON, Bontoc Subprovince, Mount Polis, Bur. Sci. 37609 
Ramos & Edafio, February 25, 1920. In the mossy forest, alti- 
tude about 1,800 meters, with the local name tukong. 
This was originally identified as Rubus rolfei Vid., but is 
remarkably distinct from that species and from all other de- 
- scribed forms in its calyx characters. It resembles Vidal’s 
