Polygonum.| CIX. POLYGONACEM (BAKER AND WRIGHT), 109 
5-lobed more than half-way down; lobes oblong, rounded at the apex. 
Stamens 7, slightly shorter than the perianth. Ovary compressed ; 
styles united about half-way up; stigmas subcapitate. Nutlet com- 
pressed trigonous. 
Lower Guinea. German South-west Africa: Amboland, Olukunda, Schinz, 
499 ! 
12. P. barbatum, Linn. Sp. Pl. ed. i. 362. Perennial. Stem 
slender, erect, hairy upwards or throughout. Leaves lanceolate, acu- 
minate, narrowed to the base, nearly sessile, usually hairy on both 
surfaces, the lower 4-6 in. long. Spikes cylindrical, slender, 2—3 in. 
long; peduncles hairy; bracts conspicuously ciliate with rigid bristles. 
Perianth pink, eglandular, 1 lin. long. Stamens 6-8. Ovary shortly 
conical ; styles 3. Nut trigonous, small, smooth.—Thunb. Fl. Cap. 
ed. Schult. 385; Wight, Ic. t. 1798; Meisn. in DC. Prodr. xiv. 104 
(incl. var. vulgare, Meisn.); A. Rich. Tent. Fl. Abyss. ii. 226; Aschers. 
in Schweinf. Beitr. F]. Aethiop. 170; Hook. f. Fl. Brit. Ind. v. 37; 
Engl. Hochgebirgsfl. Trop. Afr. 201; Schweinf. in Bull. Herb. Boiss. 
iv. Append. ii. 155; De Wild. Etudes Fl. Bas et Moyen Congo, i. 238; 
Gage in Rec. Bot. Surv. Ind. ii. 425. 
Upper Guinea. Northern Nigeria: Nupe, Barter, 874! Cameroons: Sanaga, 
Zenker, 1451! 
Wile Land. Eritrea: Arrot Valley, Schweinfurth & Riva, 676! Galabat: 
Matamma, Schweinfurth, 684! 685! Sennar: Fazokl, Kotschy, 505 ! 
Mozamb. Dist. German East Africa: Kilimanjaro, 5000 ft., Johnston! 
British Central Africa: N yasaland ; Fort Johnston, Scott-EHiliot, 8416! Blantyre,. 
Buchanan, 137! 
Var. Fischeri, Dammer in Engl. Pfl. Ost-Afr. C. 169. Leaves with adpressed 
bristles on the nerves beneath. Bracts smaller. 
East Tropical Africa. Without precise locality, Fischer, 231. 
Also in Tropical Asia. 
13. P. lanigerum, &. Br. Prodr. 419. Perennial. Stem stout, 
erect, 4-5 ft. high, white-tomentose upwards. Leaves shortly petioled, 
lanceolate, acute, clothed densely beneath and thinly above with per- 
sistent white tomentum, the lower 6-9 in. long, 14-2 in. broad at the 
middle ; ochre long, membranous, ciliate. Racemes dense or mode- 
rately dense, oblong or oblong-cylindrical, 1-3 in. long; bracts orbicular, 
shortly ciliate ; peduncles pubescent, eglandular. Perianth eglandular, 
13-2 lin. long. Stamens usually 6. Styles 2. Nut lenticular, orbi- 
cular, black, shining.—DC. Prodr. xiv. 117; Hook. f. Fl. Brit. Ind. v. 
35; Benth. Fl. Austral. v. 271; Gage in Rec. Bot. Surv. Ind. ii. 424. 
P. arachnoideum, Klotzsch ex Meisn. 1.c. 
Upper Guinea. Gambia, Jagram! Sierra Leone: wet place by river at 
Dantilla, Scott-Elliot, 5265! Southern Nigeria: Lagos, Millen, 92! Aboh, Barter, 
175! Northern Nigeria: North Bornu, Elliott, 156! 
Wile Land. Sudan: Bahr-el-Jebel, Muriel, 74! Gazelle River, at Meshera, 
