486 The Philippine Journal of Science 1914 
Sepals 2, unequal, the larger one reniform, about 1.5 mm wide, 
1 mm long, the smaller orbicular, about 0.5 mm in diameter. 
Stamens about 30 ; filaments nearly 1 mm long. Female flowers 
and fruits not seen. 
Mindanao, Subprovince of Bukidnon, Sumilao, Bur. Sci. 15765 Fenix, 
August 5, 1912, in thickets along streams, locally known as nabugki. 
A very characteristic species, allied to Homalanthus fastuosus and to 
H. papuanus, differing from both in its very large, long-petioled leaves, 
from the former also in its 1-flowered bracteoles, long-pedicelled flowers, and 
from the latter in its numerous stamens, long inflorescence, long-pedicelled 
flowers, and numerous other characters. The species is apparently dioecious, 
for on our material there is no indication of any female flowers at or near 
the base of the male inflorescence. 
HOMALANTHUS ROTU N Dl FOLI US sp. nov. § Monosepali. 
Frutex vel arbor parva, glabra; foliis rotundatis, peltatis, 
membranaceis, 3 ad 7 cm diametro, apice obscurissime biglan- 
dulosus; racemis usque ad 12 cm longis, bracteis minutis, uni- 
floris, obscure biglandulosis, floribus $ 1.2 ad 2 mm diametro, 
sepalum 1, anticum, reniforme, 1 ad 1.5 mm diametro; stami- 
nibus circiter 25; fructibus leviter compressis, circiter 4 mm 
longis. 
A shrub or small tree, 10 m high fide Ramos, entirely glabrous. 
Branches stout, terete, glabrous, somewhat olivaceous, marked 
with large petiolar scars, the internodes short. Leaves nearly 
round, prominently peltate, membranaceous, 3 to 7 cm in diam- 
eter; petioles slender 5 to 7 cm long, very obscurely biglandular 
at the apex; stipules membranaceous, oblong-lanceolate, acumi- 
nate, deciduous, 1.5 to 2 cm long. Racemes axillary, slender, 
solitary, up to 12 cm long, the female flowers few, basal, the 
male flowers above, very numerous, yellowish. Male flowers: 
pedicels slender, about 2 mm long, the flowers in anthesis globose, 
I. 5 to 2 mm in diameter; sepal 1, reniform, 1 to 1.5 mm in 
diameter ; stamens about 25 ; subtending bracts small, obscurely 
biglandular. Female flowers not seen. Fruits compressed, 2- 
celled, about 4 mm long, 5 to 6 mm wide. 
Samar, Paranas, along small streams, Phil. PI. 1663 Ramos, April, 1914. 
A species similar to and manifestly allied to Homalanthus macradenius 
Pax & K. Hoffm. of Mindanao, differing in its obscure glands and more 
numerous stamens. 
HOMALANTHUS ALPINUS Elm. Leaf!. Philip. Bot. 1 (1908) 307; Merr. in 
Philp. Journ. Sci. 5 (1910) Bot. 357; Pax in Engl. Pflanzenreich 52 
(1912) 48. 
This distinct species is at present represented in the Herbarium of the 
Bureau of Science by about 25 specimens. It is of wide distribution in 
the northern and central parts of the Philippines, occurring on the higher 
