686 CXXII, EUPHORBIACEE (HUTCHINSON). [ Drypetes. 
24. D. usambarica, Hutchinson. A large forest tree, 100-200 ft. 
high, with horizontally spreading branches ; branchlets somewhat angular 
or subterete, glabrous or nearly so. Leaves elliptic or elliptic-lanceolate, 
gradually acuminate to the obtuse apex, cuneate and unequal at the 
base, 2—4 in, long, 1-2 in. broad, ‘subcoriaceous, entire or undulate, 
glabrous on both surfaces; lateral nerves about 7 on each side, spreading, 
looped and anastumosing some distance from the margin, distinct on 
both surfaces, especially below ; veins somewhat close and distinct on 
both surfaces ; petiole 1-23 lin. long, pubescent; stipules small, deci- 
duous. Male fascicles produced on the old wood; pedicel 4-3 in. 
long, slender, glabrous, Sepals 5, suborbicular, 2 lin. in diam., coria- 
ceous, glabrous on both surfaces, margin minutely ciliolate. Stamens 
10, inserted outside the disk; anthers 1} lin. long. Disk fleshy, flat, 
glabrous, undulately lobed, lobes protruding between the bases of the 
filaments. Female flowers not known.—Cyclostemon usambaricus, Pax 
in Engl. Jahrb. xxxiii. 279. 
Mozamb. Distr. German East Africa: Usambara; Sukare, Busse, 350! 
Holtz, 762! Illich; in the evergreen forest, Engler, 10084! Kwai, Albers, 21! 
Ukinga, Goetze, 1205! 
25. D. Preussii, /Zutchinson. A tree, 12-20 ft. high; young 
branchlets densely hirsute, subterete. Leaves lanceolate-elliptic or 
cblong-elliptic, caudate-acuminate, subcuneate or slightly rounded at 
the base, 23-6 in. long, thinly chartaceous, serrate, glabrous on both 
surfaces except on the pubescent midrib below; lateral nerves 6-7 ov each 
side, looped and anastomosing some distance from the margin, slightly 
impressed above, prominent below; veins somewhat lax, not at all 
prominent; petiole 2-3 lin. long, densely pubescent ; stipules subulate, 
acute, 1} lin. long, villous, deciduous. Male and female flowers pro- 
duced in clusters on the old wood; male pedicel } in. long, glabrous, 
female 3-4 lin. long. Male flowers: Sepals 5, orbicular, 2 lin. in 
diam., coriaceous, glabrous on both sides, margin shortly ciliate. 
Stamens about 15; anthers 3 lin. long. Disk flat, fleshy, glabrous, 
margin lobed, lobes protruding between the bases of the filaments. 
Young female flowers not seen. Disk annular, entire, glabrous. Fruits 
3-celled, trilobed, ellipsoid, ? in. long, 7 lin. in diam., glabrous; stigmas 
spreading and recurved, obliquely lanceolate-—Cyclostemon Preusstt, 
Pax in Engl. Jahrb. xxvi. 326. 
Upper Guinea, Cameroons: Barombi, Preuss, 23! Bipinde, Zenker, 2257! 
22574! 2839! 2850! Tibaté, Ledermann, 2329! 
26. D. pierreana, Hutchinson. A tree 20-25 ft. high ; branchlets 
subterete, densely puberulous. Leaves oblong or oblong-elliptic, caudate- 
acuminate, subcuneate and very unequal at the base, 4-7 in. long, 13-3 
in. broad, thinly coriaceous or chartaceous, denticulate in the upper 
half, glabrous on both surfaces except on the pubescent midrib on the 
lower side, slightly shining on the upper surface, dull below ; lateral 
nerves about 9 on each side, spreading, looped and anastomosing some 
distance from the margin, slightly impressed above, prominent below ; 
