ALABASTRA PHILIPPINENSIA, II. 
205 
represented by Mrs. Clemens 522, and by several unnumbered sheets. Camp 
Keithley, Lake Lanao, Mindanao, April-July, 1906, showing all stages of flower 
and fruit; also by sterile material collected by Hallier on the Island of Basilan, 
January, 1904. 
DILLENIACE2E. 
SAURAUIA Willd. 
Saurauia denticulata sp. nov. 
Floribus fasciculatis, eaulinis, pentameris; staminibus 20, biseriatis; 
stylo valde. sed inaequaliter trifido, ovario triloculari ; foliis breviter petio- 
latis, obovatis vel oblongo-ellipticis, brevissime acuminatis, basi subcor- 
datis, margine crebrissime spinoso-denticulatis. 
Flowers in fascicles 2-3 cm in diameter, containing 50 flowers or more, 
borne on branching tubercles upon the lower parts of the stem; pedicels 
5-11 nnn long, rather densely covered with ferruginous acicular scales 
0.5 mm long: sepals 5, united at the extreme base, the 3 outer ovate, 6 
mm long, 3-3.5 mm wide, rounded or subacute at the apex, with a few 
or several conspicuous dark stiff hairs on the outer surface, the 2 inner 
sepals lanceolate, 5 mm long, 2 mm wide ; petals 5, pinkish, united at the 
base, elliptic, 5.5 mm long, 3.5 mm wide, obscurely notched at the apex ; 
stamens 20, in two rows, the filaments 1 mm and 0.5 mm long, respectively, 
.the anthers 1.8-2 mm long, 0.4 mm wide throughout their length, cordate 
at the base, 2-celled; ovary ovate in outline, about 2 mm long, 3-celled 
with several ovules in each cell, but apparently few of them developing, 
style 3. 5-4. 5 mm long, deeply but unequally trifid, stigma minute. 
A shrub with stems 2.5 m high and 2.5 cm in diameter, the bark yellow- 
ish or near the apex grayish-yellow, glabrous except the apex and the 
petioles which are covered with appressed acicular scales attaining a 
length of 3 mm but usually much shorter : leaves borne on petioles 3.5-9 
mm long, and 2-2.5 mm in diameter, subpeltate, the lamina obovate 
elliptic or oblong, 11-20 cm long, 4-8 cm wide, at the base truncate or 
on the upper surface subcordate, uninjured apices shortly and acutely 
acuminate, the margins with very numerous spinose denticulations, 
olivaceous on the upper surface, yellowish-green on the under surface, the 
midrib and primary lateral veins of the under surface and the basal half 
or less of the midrib of the upper surface with appressed acicular scales ; 
primary lateral veins on each side of the midrib 16 or 17, somewhat 
impressed on the upper surface, together with the secondary veins distinct 
on the under surface. 
Type collected at an elevation of 240 m at Sax River, District of Davao, 
Mindanao, by R. S. Williams, no. 2167, February 14, 1905. 
