PolygonumJ] cix. polygonace^ (baker and weight). 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 G in. long and 1 in. wide ; petiole slender, J in. long ; 

 ochrese 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 f). 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''^e s^^r. viii. 710. 



Mozamb. Slst. 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, I.e. 426. 



Iiower Guinea. Angola : Malange, Thettsch ! 



Also in Tropical Asia and Australia. 



8. P. serrulatumy Lag. 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 ; ochrese ciliate with long bristles. Spikes 

 slender, cylindrical, often several to a stem, lJ-2 in. long; peduncle 

 very slender, glabrous; bracts rigidly ciliate. Perianth pink, eglan- 

 dular, 1 lin.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. salici/olium, Del. Fl. ^gypt. 

 Illustr. 12; Meisn. I.e. F. abyssinicum, A. Rich. Tent. Fl. Abyss, ii. 

 225. P. scahrum, Hiern in Cat. Afr. PI. Welw. i. 903, an Poir.? 



Upper Guinea. Senegambia : Cape de Nase, Dollinger ! Senegal, Roger ! 

 Sierra Leone : near Kainbia, Scarcies Valley, Scott-Elliot^ 4352 ! Western Lagos : 

 interior, Rowland! Northern Nigeria : Nupe ; l^ova. Barter , 1551! Cameroons: 

 Ambas Bay, Mann, 762 ! Yaunde, Zenker, 1520 ! 



zrile iLand. Abyssinia : near Adowa, Schimper, 182 ! Niamniam : Nabara- 

 bisso River, Schweinfurth, 2999 ! Uganda : Mawokota, 3900 ft.. Brown, 197 1 

 Kampala, Scott-Elliot, 7395 ! British East Africa: Muka, Kaessner, 911 ! 



Xiower Guinea. Angola ; Chella mountains, Johnston ! Golungo Alto, Wel- 

 vntsch^ 5367 ! Mossamedes ; swampy places at the mouth of the River Giraul, 

 Welwitsch, 5369 ! Huilla; at Lopollo, Welwitsch, 5368 ! in the River Caculuvar, 

 near Lake Ivantala, Welwitsch, 5370! 



lIKozainb. Blst. German East Africa : Usanibar.i ; Kwa Mshuza, Hoist, 

 9027! British Central Africa: Nyasaland ; Namasi, Cameron, 9! Tanganyika 

 Plateau, 4000 ft., Whyte I Zomba, Whyte ! Masuku Plateau, Whytel Karonga, 

 1564 ft., Scott! 



Var. Bonii, Hook. f. Fl. Brit. Ind. v. 38. Leaves elliptic or lanceolate. 



