Oxygo7ium.] cix. polygonace^ (baker and weight). 101 



long; anthers blue. Fruit obovoid, 9-ridged, obscurely puberulous ; 

 ridges connected by close, less prominent transverse ones. 



Mozamb. Slst. Portuguese East Africa: Morebjine Cliara,2500 it.yJohnsouy 

 247 ! Rhodesia: Mashonaland; between Salisbury and Headlands, Hon. Mrs. Evelyn 

 Cecil, 155 ! at Umtali, Hon. Mrs. Evelyn Cecil, 235a ! between Umtali and Salisbui-y, 

 Hon. Mrs. Evelyn Cecil, 44 ! 



This species is allied to the South African O. dregeanum, Meisn., which has a 

 perfectly glabrous stem and usually broader leaves. 



5. O. atriplicifolium, Martelli, Fl. Bogos, 69. Stems slender, 

 diftuse, ascending, finely pubescent along one side. Leaves deltoid to 

 lanceolate, acute, entire or slightly lobed, abruptly cuneate at the base, 

 puberulous, 10 lin. long, 6 lin. wide; petiole 3 lin. long; ochrese 3 lin. 

 long, pubescent, setse as long as the tube. Racemes lax, usually about 

 6 in. long, slender; bracts similar to the ochrese, 2-3-flowered. Peri- 

 anth IJ lin. long, pale pink; lobes ovate. Fruiting-perianth 3 lin. 

 long, conical at the base and apex, with a spreading spine from each 

 of the three angles below the middle. — Ceratogonon atriplicifolium ^ 

 Meisn, in Wall. PI. As. Rar. iii. 63. Ceratogonum atriplicifolium^ 

 Meisn. in DC. Prodr. xiv. 39. Polygonum atriplicifolium, Wall. Cat. 

 1719. F, Oweni, Bojer in Ann. Sc. Nat. 2'^« ser. iv. 267, t. 9. 



xrile Iiand. British East Africa : Mombasa, Blackburn ! north of Mombasa, 

 Whyte 1 



IVXozaiul). Dist. Portuguese East Africa : Mozambique, Forbes ! 



V^ar. sinuatum. Baker. More robust than the type. Leaves thicker, more or 

 less deeply pinnately lobed. — O. sinuatum, Dammer in Engl, & Prantl, Pflanzenfam. 

 iii. 1 A, 30; Hiern in Cat. Afr. PI. Welw. i. 903. O. rorc^o/awwrn, Dammer, I.e. ; 

 Hiern, I.e. 902. Ceratogonum sinuatum, Hochst. & Steud. ex A. Rich. Tent. Fl. 

 Abyss, ii. 231; Meisn, in DC. Prodr. xiv, 40; Aschers, in Schweinf. Beitr. Fl. 

 Aethiop. 170. C. cordofanum, Meisn. I.e. 39. C. atriplicifolium, A. Rich. Tent. 

 Fl. Abyss, ii. 231 ; Oliv, in Trans, Linn, Soc. xxix. 141. Polygonum No. 2, Speke, 

 Nile, Append. 645. Haphanojjsis sp.,Wtihv. Apont. 547. Diplopyramis athiopica, 

 Welw. I.e. 591 ; J. Britt. in Journ. Rot. 1895, 75. 



xrile Xiand. Nubia : Hor Tamanib, Lord I Eritrea : Keren, Beccari^ 151 ! 

 Galata, Schiveinfurtlc Sf Biva, 1619 ! Abyssinia : near Gennia, Schimper, 264 ! 

 Somak Efat, Ruth ! and without precise locality, Quartin- Dillon Sf Petit, 86 ! 

 Schimper, 197 ! Parkyns I Somaliland, Mrs. Lot Phillips I Drake Brockman, 

 413! Kordofan, Kotschy, 941117! P/««c?, 364 ! 607 ! British East Africa: 

 near Nairobi, Whyte ! Galunka, Kaessner, 840 ! 



Xiower Guinea. Angola : Pungo Andongo ; from Ambaca to the Praesidium, 

 Welwitsch, 1756! Ambaca: near Ngombe, Welivitsch, 1756b! Huilla: near 

 LopoUo, Welwitsch, 1758 ! 



XHozaznb. Blst. Germiin East Africa : Kilimanjaro, 6000 ft, Johnston ! 

 Mamba, Volkens, 901 ! Karagwe, Speke Sf Grant, 437 ! 



The characters by which Meisner (I.e.) separ;ited atriplicifolium, cordofanumy 

 and sinuatum are not satisfactory, as the length and density of the raceme and the 

 relative length ot the setai and the tubular part of the ochrea vary in each species. 



6. O. elongatum, Dammer in Engl. Fji. Ost-Afr. C. 170. Stems 

 ascending, striate, pilose ; oclirece membranous, cylindrical, pubescent, 



