102 cix. POLYGONACE.E (baker AND wrigut). [Oxygoiium, 



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 :Mid, much longer than the stamens. 

 Female : Perianth-tube 4 lin. long, with o spines below the middle. 

 Nut pilose, trigonous. 



IVXozamb. Dlst. (Jerman Knst Africa : Usa^jara, -S/M/i/wmj^H, 288; Usambara ; 

 Nyika, llolst, 3899 ; Southern Masailaiul, Stuhlmann, 4286. 



7. O. Stuhlmannii, Dammer in Engl. PJl. Ost-Afr. C. 171. Stem 

 much branched from a woody base, striate, glabrous ; ochrea) nearly 

 as long as the internodes, cupuliform, glabrous except for a few long 

 bristles. Leaves petioled, lanceolate, 1-2 in. long, 4-1) lin. wide, much 

 narrowed to the iDase, thick, glabrous on both surfaces. Spike 4-G in. 

 long ; bracts turbinate, obliquely truncate, ciliate, the upper close to- 

 gether. Male : l^erianth smaller than the female, eglandular ; segments 

 oblong. Stamens 7, slightly exserted. Ovary rudimentary; style 

 B-partite, half as long as the stamens. Female : Perianth-tube 2J lin. 

 long. Style o-partite. Nut small, trigonous, with ?) spines from the 

 middle. 



Mozaxnb. Dlst. Gennau E:\st Africa : Mwaiiza, on Lake Victoria, Stuhlmann, 

 4G28. 



8. O. salicifolium, Dammer in Kmjl. Vjl. Ost-Afr. C. 171. Stem 

 creeping, slender, slightly pubescent ; ochrese 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, o lin. wide. Spikes lateral, long, very lax; rhachis very slender; 

 bracts small, at tirst very minutely pubescent, soon glabrous, bordered 

 with a few long bri.stles. Male : Perianth funnel-shaped, 3 lin. long ; 

 segments oblanceolate, glandular-punctate outside. Stamens 7, ex- 

 serted. Ovary rudimentary ; style o-partite, much shorter than the 

 stamens. Female flower larger than the male. Nut pubescent, with 

 3 spines at the middle. 



Wile Iiand. British East Africa : near Chaii<i;'uunve, 30U ft., Kaessner, 262! 



nfozamb. Dlst. German East Africa : Usainhara ; liote, on the River Uniba, 

 Kaessue);lQO\ Dupi, i/o/.sY, 3186! Karagwe; Ihan«^iro, 400U ft., Stuhlmann, 

 3333 ;-Usiiia\vo; Kugeyi, on Lake Victoria, Fischer, 551. 



A phmt collected by Sir John Kirk at Kihva, in (ilennan East Africa, may be a 

 form of this species ; it differs in having subhastate leaves. 



9. O. fascictdatum, C. II. 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; ochrea? tubular, 3-4 lin. long, membranous, 

 setae numerous, slender, brownish, slightly shorter than the tube. 



