566 Philippine Jownal 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 pro.r.inent, 

 stinging hairs. It differs notably from the polymorphous Tragia 

 involucrata Linn, in its three entire sepals. 



TRIGONOSTEMON Blume 

 TRIGONOSTEMON M ACGREGORII 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, 5 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 



