20, 4 ; Merrill: Noteworthy Philippine Plants, XVII 465 
MINDORO, Mount Calavite, Bur. Sci. 39279 (type), 39398 
Ramos, April, 1921. On forested slopes, altitude 600 to 700 
meters. 
A species belonging in the group with Urophyllum acumi- 
natum Merr., but with broader, more numerously nerved, 
differently shaped, not caudate-acuminate leaves, and nearly 
glabrous throughout. 
ARGOSTEMMA Wallich 
ARGOSTEMMA ARACHNOSUM sp. nov. 
Herba simplex, suberecta, usque ad 20 cm alta, subtus foliis 
ad costa nervisque dense arachnoso-villosis; foliis numerosis, 
oblongis ad oblongo-ellipticis, 4.5 ad 8 cm longis, in paribus 
subaequalibus, obtusis ad brevissime acuminatis, nervis utrinque 
circiter 8, subtus perspicuis; inflorescentiis longe pedunculatis, 
cymosis, 1.5 ad 3 cm longis, arachnoso-villosis, pedunculo usque 
ad 9 cm longo, glabro; floribus 5-meris, pedicellis villosis, 10 
ad 12 mm longis. 
A simple, suberect herb, up to 20 em high, the stems usually 
decumbent below, about 3 mm in diameter, the younger parts 
more or less villous or hirsute. Leaves numerous, in scattered 
pairs, those of each pair equal or subequal, oblong to oblong- 
elliptic, obtuse or very shortly acuminate, membranaceous or 
chartaceous, 4.5 to 8 cm long, 1.8 to 2.5 cm wide, the base 
acute to rounded, the upper surface usually black when dry, 
Sparingly villous along the midrib or entirely glabrous, the 
lower surface very conspicuously and densely villous with dirty- 
brown, crisped, cobwebby hairs on the midrib, nerves, and re- 
ticulations; lateral nerves about 8 on each side of the midrib, 
prominent on the lower surface; petioles 1 to 2 cm long, villous; 
stipules oblong, about 8 mm long, 4 mm wide, acuminate. In- 
florescences terminal, cymose, the cymes rather densely flowered 
and umbelliform, villous, 1.5 to 3 cm long; peduncles elongated, 
glabrous, 5 to 9 em long, often with a whorl of membranaceous, 
oblong-ovate, 4 to 5 mm long bracts at about the middle, the 
bracts subtending the branches oblong to oblong-lanceolate, 2.5 
to 5 mm long, the bracteoles broadly ovate, obtuse, 2 mm long. 
Flowers 5-merous, their pedicels villous, 10 to 12 mm long. 
Calyx about 2.2 mm in diameter, densely villous, the lobes broad- 
ly ovate, spreading, glabrous inside, 1 mm long. Fruit about 
4 mm long and wide, somewhat cup-shaped, the calyx limb well 
produced above the fruit. 
