566 
Philippine Journal of Science 
1920 
the cocci globose, about 7 mm in diameter, prominently hispid 
with white, stiff, spreading, stinging hairs. 
Luzon, Abra Province, Mount Posuey, Bur. Sci. 27013 Ramos, 
February 4, 1917, on damp forested slopes. 
The third species to be found in the Philippines, and one 
readily distinguished from Tragia irritans Merr. in its leaves 
being truncate-cordate and somewhat hastate, the sinus very 
broad and shallow, and the basal lobes not rounded; its three, 
accrescent, pistillate sepals; and its numerous, very prominent, 
stinging hairs. It differs notably from the polymorphous Tragia 
involucfata Linn, in its three entire sepals. 
TRIGONOSTEMON Blume 
TRIGONOSTEMON MACGREGORII sp. nov. § Pycnanthera. 
Frutex circiter 2 m altus, ramulis inflorescentiisque plus mi- 
nusve adpresse hirsutis; foliis membranaceis, oblongis, per- 
spicue acuminatis, integris, usque ad 14 cm longis, basi rotun- 
datis vel obtusis, 3-nerviis; paniculis axillaribus, pedunculis, 
foliis subaequantibus ; floribus S circiter 9 mm diametro, se- 
palis apice perspicue glandulosis, antheris 3, ellipsoideis, inte- 
gris, $ sepalis perspicue ciliato-hirsutis ; ovario glabro, stylis 
3, brevibus, integris. 
A shrub about 2 m high, the branchlets and inflorescences 
more or less appressed-hirsute. Leaves membranaceous, oblong, 
prominently acuminate, entire, 10 to 14 cm long, 3 to 5 cm 
wide, base rounded to obtuse, distinctly 3-nerved ; lateral nerves 
above the basal pair 5 or 6 on each side of the midrib, the 
midrib and nerves on both surfaces very sparingly appressed- 
hirsute. Panicles axillary, lax, peduncled, 9 to 16 cm long, 
the branches slender, irregularly arranged, the lower ones up 
to 7 cm long. Pistillate and staminate flowers pale-yellow, in 
the same inflorescences or sometimes in separate inflorescences 
on the same plant. Staminate flowers about 9 mm in diameter, 
their pedicels slender, 5 to 10 mm long. Sepals 5, elliptic to 
elliptic-ovate, 1.5 to 2 mm long, glabrous or with very few 
ciliate-hirsute hairs, glandular-punctate, the apex obtuse or 
notched and with a large conspicuous gland. Petals membrana- 
ceous, glabrous, obovate, about 4.5 mm long, 3 mm wide, the 
apex somewhat obliquely truncate-rounded. Disk 1 mm in 
diameter, entire. Androphore about 2 mm long, anthers 3, 
ellipsoid, entire, 0.4 mm long, the filaments 0.5 mm long. Pis- 
tillate flowers similar to the staminate ones, differing in their 
larger, prominently hirsute-ciliate sepals which are oblong and 
