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- 

 iacels, 5-lobatis, 12 ad 15 cm longis, basi cordatis, apice acutis 

 vel leviter acuminatis, supra nigosis, olivaceis, petiolo 3.5 ad 

 5 cm longo; stipulis deciduis, liberis, laciniatis: inflorescentiis 

 terminalibus, paniculatis, 15 ad 20 cm longis; floribus con- 

 fertis, magriis, calycibus 3.5 cm 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 ^ 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 nerv^es on the lower surface supplied with numerous, 

 rather slender, slightly curved spines, 1.5 to 3 mm in len^h. 

 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 cm 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 Polls, Bur. Sci. 37609 

 Ramos & Edano, February 25, 1920. In the mossy forest, alti- 

 tude about 1,800 meters, with the local name tukong. 



This was originally identified as Rubiis rolfei Vid., but is 

 remarkably distinct from that species and from all other de- 

 scribed forms in its calyx characters. It resembles Vidal's 



