102 CIX. POLYGONACEH (BAKER AND WRIGHT). [Oxygonum. 
with a few long bristles. Leaves petioled, lyrate, acuminate, tapering 
to the base, thick, glaucous, pubescent on both surfaces, 1 in. long 
4-7 lin. wide. Spikes up to 1 ft. long; bracts ciliate, densely pilose ; 
flowers exserted from the bracts. Male: Perianth smaller than the 
female, eglandular; segments linear. Stamens scarcely exserted. 
Ovary rudimentary; style 3-fid, much longer than the stamens. 
Female : Perianth-tube 4 lin. long, with 3 spines below the middle. 
Nut pilose, trigonous. 
Mozamb. Dist. German East Africa: Usagara, Stuhlmann, 288 ; Usambara ; 
Nyika, Holst, 3899; Southern Masailand, Stuhlmann, 4286. 
7. O. Stuhlmannii, Danmer in Engl. Pfl. Ost-Afr. C.171. Stem 
much branched from a woody base, striate, glabrous; ochrez nearly 
as long as the internodes, cupuliform, glabrous except for a few long 
bristles. Leaves petioled, lanceolate, 1-2 in. long, 4—9 lin. wide, much 
narrowed to the base, thick, glabrous on both surfaces. Spike 4—6 in. 
long ; bracts turbinate, obliquely truncate, ciliate, the upper close to- 
gether. Male: Perianth smaller than the female, eglandular ; segments 
oblong. Stamens 7, slightly exserted. Ovary rudimentary; style 
3-partite, half as long as the stamens. Female: Perianth-tube 24 lin. 
long. Style 3-partite. Nut small, trigonous, with 3 spines from the 
middle. 
- Mozamb. Dist. German East Africa : Mwanza, on Lake Victoria, Stuhlmann, 
28. 
8. O. salicifolium, Dammer in Engl. Pf. Ost-Afr.C.171. Stem 
creeping, slender, slightly pubescent ; ochre cylindrical, obtuse, mem- 
branous, bordered with a few long bristles, brown when dry. Leaves 
linear-lanceolate, long tapering at both ends, entire, glabrous, 2~3 in. 
long, 3 lin. wide. Spikes lateral, long, very lax; rhachis very slender ; 
bracts small, at first very minutely pubescent, soon glabrous, bordered 
with a few long bristles. Male: Perianth funnel-shaped, 3 lin. long ; 
segments oblanceolate, glandular-punctate outside. Stamens 7, eX- 
serted. Ovary rudimentary ; style 3-partite, much shorter than the 
stamens. Female flower larger than the male. Nut pubescent, with 
3 spines at the middle. 
Wile Land. British East Africa: near Changamwe, 300 ft., Kaessner, 262! 
: Mozamb. Dist. German East Africa: Usambara; Bote, on the River Umba, 
Kaessner, 100! Duga, Holst, 3186! Karagwe; Ihangiro, 4000 ft., Stuhlmann, 
3333 ; Usmawo; Kageyi, on Lake Victoria, Fischer, 551. 
A plant collected by Sir John Kirk at Kilwa, in German East Africa, may be 
form of this species ; it differs in having subhastate leaves. 
9. Oo. fasciculatum, C. H. Wright. Stem ascending, reddish, 
very slightly puberulous. Leaves lanceolate, tapering towards both 
ends, 2 in. long, 5 lin. wide, papillose on both surfaces, quite entire ; 
petiole slender, 3 lin. long ; ochre tubular, 3—4 lin, long, membranous, 
sete numerous, slender, brownish, slightly shorter than the tube. 
