Polygonum.|] IX. POLYGONACEH (BAKER AND WRIGHT), 107 
7. P. pedunculare, Wall. Cat.n. 1718. Stem erect, glabrous or 
slightly puberulous. Leaves oblong-lanceolate, acuminate, cuneate at 
the base, minutely ciliate on the margins, otherwise glabrous, thinly 
membranous, up to 6 in. long and 1 in. wide ; petiole slender, } in. long ; 
ochrez obtusely truncate, very shortly ciliate at the mouth only, mem- 
branous, strongly nerved. Panicle terminal, pseudo-dichotomous, axis 
finely glandular; bracteoles ovate, very short, ciliate, brown, mem- 
branous ; pedicels about as long as or shorter than the bracteoles. 
Perianth-lobes oblong, obtuse. Stamens 5. Styles 2, united about 
half-way. Nutlet orbicular, biconvex, straw-coloured.— Wight, Ic. t. 
1802; Meisn. in DC. Prodr. xiv. 133, partly ; Hook. f. Fl. Brit. Ind. 
v. 48; Gage in Rec. Bot. Surv. Ind. ii. 426; Schuster in Bull. Herb. 
Boiss. 2™¢ sér. viii. 710. 
Mozamb. Dist. British Central Africa: Nyasaland, without precise locality, 
Buchanan, 430! 677! : 
Var. angustissima, Hook. f. Fl. Brit. Ind. v. 48. Leaves narrowly linear- 
lanceolate, acuminate at both ends.—Gage, l.c. 426. 
Lower Guinea. Angola: Malange, Theusch ! 
Also in Tropical Asia and Australia, 
8. P. serrulatum, ag. Gen. et Sp. Nov. 14. Annual. Stem 
slender, glabrous, 2-3 ft. long, erect or decumbent at the base. Leaves 
lanceolate, acuminate, rounded at the base, subsessile, glabrous or slightly 
hairy, the lower 3-4 in. long ; ochrez ciliate with long bristles. Spikes 
slender, cylindrical, often several to a stem, 14-2 in. long; peduncle 
very slender, glabrous; bracts rigidly ciliate. Perianth pink, eglan- 
dular, 1lin.long. Stamens 6-8. Styles usually 3. Nut usually trigonous, 
polished, shorter than the perianth.—Meisn. in DC. Prodr. xiv. 110; 
Aschers, in Schweinf. Beitr. Fl. Aethiop. 170; Engl. Hochgebirgsfl. 
Trop. Afr. 202; De Wild. Etudes Fl. Bas et Moyen Congo, i. 238; 
Gage, Rec. Bot. Surv. Ind. ii. 425. P. salicifolium, Del. Fl. Aigypt. 
Illustr. 12; Meisn.l.c. P. abyssinicwm, A. Rich. Tent. Fl. Abyss. ii. 
225. P. scabrum, Hiern in Cat. Afr. Pl. Welw. i. 903, an Poir.? 
Upper Guinea. Senegambia: Cape de Nase, Déllinger! Senegal, Roger! 
Sierra Leone: near Kambia, Scarcies Valley, Scott-Elliot, 4352! Western Lagos: 
interior, Rowland! Northern Nigeria: Nupe; Lom, Barter, 1551! Cameroons: 
Ambas Bay, Mann, 762! Yaunde, Zenker, 1520! 
Mile Land. Abyssinia: near Adowa, Schimper, 182! Niamniam: Nabam- 
bisso River, Schweinfurth, 2999! Uganda: Mawokota, 3900 ft., Brown, 197! 
Kampala, Scott-Elliot, 7395! British East Africa: Muka, Kaessner, 911! 
Lower Guinea. Angola: Chella mountains, Johnston / Golungo Alto, Wel- 
witsch, 53867! Mossamedes; swampy places at the mouth of the River Giradl, 
Welwitsch, 5369! Huilla 3; at Lopollo, Welwitsch, 5368 ! in the River Caculuvar, 
near Lake Ivantala, Welwitsch, 5370! 
Mozamb. Dist. German East Africa: Usambara; Kwa Mshuza, Hoist, 
9027! British Central Africa: Nyasaland; Namasi, Cameron, 9! Tanganyika 
Plateau, 4000 ft., Whyte ! Zomba, Whyte! Masuku Plateau, Whyte! Karonga, 
1564 ft., Scott! 
Var. Donii, Hook, f. Fl. Brit. Ind, v. 38. Leaves elliptic or lanceolate, 
