PHILIPPINE URTICACEAE. 
23 
Mindoro, Amnay River, at 600 m elevation, For. Bur. 11461 Merritt. Possibly 
closely allied to L. sumatrana (Bl.) Miq., which has sessile eapitula and longer 
nerves. The next species, which is very similar, can be distinguished by its much 
less sharply curved or nearly straight veins, both these and the veinlets project- 
ing above the tomentum, and by the fact that both leaf-surfaces are much more 
roughly pubescent. 
3. Leucosyke aspera sp. nov. 
Arbuscula ( ?), foliis longe petiolatis, subcoriaceis, ovalibus, basi acutis, 
margine ima basi excepta acute serratis, apice abrupte acuminatis, tri- 
nerviis ; stipulis ellipticis, bifidis, acutis, longiusculis : capitulis brevius- 
cule pedunculatis, multifloris. 
Pistillate peduncles solitary or paired, less than 1 cm long, the eapitula 
7 to 8 mm in diameter ; flowers numerous, subsessile, the 5-lobed perianth 
0.4 mm long, and the ovary, 1 mm long, both longer than in the preced- 
ing species ; stigma short, capitate, very shortly penicillate. 
Branchlets somewhat angled, the scars of fallen leaves and of stipules 
less conspicuous than in the two preceding species, the branchlets, petioles 
especially near their insertion in the lamina, upper surface of young 
leaves and the nerves and veins of the under surface at all ages more or 
less densely covered with rather stiff spreading white hairs 1 to 2 mm 
long: petioles 32 to 92 mm long, .comparatively slender; lamina rigid, 
subcoriaceous, oval, 18 to 22 cm long, 9 to 13 cm wide, the base acute, 
the margins with numerous small closely-set acute teeth, these less definite 
in the basal fourth and wanting at the base, the apex abruptly contracted 
into a triangular acute acumen about 1 cm long; trinerved, the nerves 
continuing for about four-fifths of the length of the lamina, additional 
primary veins 5 or 6, the numerous veins connecting the midvein with 
the nerves straight or slightly arched, rarely forking, but frequently hav- 
ing intermediate veins near the nerves arising from the veinlets which 
connect these veins with one another; nerves, and veinlets definitely 
extending beyond the dull-bluish-white tomentum of the under surface 
and strongly contrasting with it in color, both surfaces when mature 
scabrous, the upper glabrescent with very numerous cystoliths ; stipules 
chartaceous, elliptic, 3.5 to 4 cm long, bicostate, many-nerved, bifid at 
the apex, pilose without on the costas, ciliate, substrigose on the outer 
surface. 
Luzon, Province of Albay, Mount Mayon, Bur. Sci. 2915 M earns ( type). 
Sibuyan, Magallanes, Elmer 12261. Not to be confused with Missiessya aspera 
Wedd., which is Leucosyke capitellata var. celtidifolia Wedd., and has never been 
transferred to Leucosyke: if that form were upheld as a species, the priority of 
the names would be doubtful, as Gaudichaud’s name is attached to a plate only, 
while M. aspera has the oldest verbal description. The present use of L. aspera 
will prevent any future difficulty, and it is improbable that M. aspera will ever 
receive more than varietal rank, although it is usually easily recognizable from 
L. capitellata. 
