Polygonum^ cix. polygonace.e (baker and weight). 105 



Meisn. Monogr. Polyg. 84, t. 7, fig. 2, and in DC. Prodr. xiv. 12.8; 

 Wight, Tc. t. 1804 ; A. Rich. Tent. Fl. Abyss, ii. 227 ; Aschers. in 

 Schweinf. Beitr. Fl. Aethiop. 170, inch var. simense ; Engl. Hocbge- 

 birgsfl. Trop. Afr. 203. P. perforatum, Meisn. in DC. Prodr. xiv. 

 128. 



upper Guinea. Fernando Po, 7500 ft., Manji, 1449 ! 



Wile Kand. Abyssinia: near k^ovfn, iSchimper, 29^\ Debra-Esld, Schimper, 

 €9 ; Amogoi, Schimper^ 256 ; Gondai-, Schimper, 677 ; and without precise locality, 

 Schimper^ 303 ! Uganda : Kuwenzori, Scott-Elliot, 7738 ! 



XVIozamb. Dlst. British Central Africa: Nyasaland, Buchanan^ 411 ! 163! 



Also in Madagascar and Tropical Asia. 



2. P. aviculare, Linn. Sp. PI. ed. i. 362. Annual, glabrous, 

 much-branched from the base. Stems slender, spreading oi- ascending. 

 Leaves linear or linear-oblong, the lower 1-1 J in. long, narrowed to a 

 short winged petiole ; ochrese white, membranous, bifid, many-nerved. 

 Flowers from the axils of the upper leaves and forming a short dense 

 terminal raceme ; bracts ovate, white, membranous, not ciliate ; pedicels 

 shorter than the bracts. Perianth 1 lin. long. Nut ovoid-trigonous, 

 not longer than the perianth, minutely rugose, not shining. — Meisn. in 

 DC. Prodr. xiv. 97 ; A. Rich. Tent. Fl. Abyss, ii. 9.28 (excl. syn. J\ 

 herniarioides, Del.) ; var. diffusum, Meisn. I.e. ; Aschers. in Schweinf. 

 Beitr. Fl. Aethiop. 170; Engl. Hochgebirgsfl. Trop. Afr. 201. 



Xlle Ijand. Abyssinia: Aniogoi, Sc?iimper^24:b I and without precise locality, 

 Schimper, 968 ! 



A native of the North Temperate Zone of the Old World ; now widely dispersed. 



3. P. plebeium, P. Br. Prodr. 420. Very similar to P. aviculare. 

 Stems trailing, with shorter internodes. Leaves linear-oblong, 3-6 lin. 

 long ; ochrese more lacerate, with fewer ribs. Flowers smaller. Nut 

 smaller, ovoid-trigonous, smooth and shining. — Meisn. in DC. Prodr. 

 xiv. 94 ; Hook. f. Fl. Brit. Ind. v. 27. P. herniarioides, Delile, Fl. 

 .^gypt. Illustr. 61; Meisn. I.e.; Garcke in Peters, Reise Mossamb. 

 Bot. 502 {var.foliosum) ; Engl. Hochgebirgsfl. Trop. Afr. 201 ; Hiern 

 in Cat. Afr. PJ. Welw, i. 903; Baum, Kunene-Samb. Exped. 230. 

 P. aviculare, A. Rich. Tent. Fl. Abyss, ii. 228, partly. P. Roxburghii and 

 P. Perrottetii, Meisn. in DC. Prodr. xiv. 93-94. P. Dryandri, Spreng. 

 Syst. ii. 255. P. lini/oliwni, Perrottet ex Meisn. Monogr. Polyg. 90. 

 P. ejdguitm, Meisn. Monogr. Polyg. 90 ; Benth. in Hook. Niger Fl. 

 496, not of others. 



Upper Guinea. Senegal, Roger ^ 16 ! Perrottet ! 



irile Iiand. Eritrea : Saganeiti, Schweivfurth Sf Riva, 1247 ! Plateau of 

 Kohaito, Schioeivfurtli, 185. Abyssinia: near Adowa, Schimper^ 142! near Djelad- 

 jeranne, Schimper^ 1581 ! Sudan: Khartoum, £row?i, 6475! Banks of the Nile, 

 Sieher ! 



JtO'weT Guinea. Angola: Mossamedis ; at the River Bero, TFe/w/Y.yCi^, 5372 ! 

 Huilla; near Ohai, WelwUsch, 5373! Chitanda Kiver, Baum, 1ZI\ German South- 

 west Africa : Amboland ; Olukouda, Raidauen, 20 ! 



