116 CIX. POLYGONACE® (BAKER AND WRIGHT). [ Rumen. 
Nyasaland; Panda Peak, 6381 ft., McClounie, 150! Tanganyika Plateau, at 
Fwambo, Carson ! 
Also in the Canary Islands and Madeira. 
3. R. Ellenbeckii, Dammer in Engl. Jahrb. xxxviii. 61. A shrub 
13-3 ft. high; branches striate, woody. Leaves hastate; terminal 
lobe linear, 1-14 in. long, about 1 lin. wide; basal lobes not more than 
14 lin. long and } lin. wide, usually curved towards the apex of the 
blade, sometimes nearly obsolete. Panicles at the apex of the young 
branches, 2 in. long; pedicels about 1 lin. long, filiform, articulated 
below the middle. Outer perianth-lobes acute; inner pale rose, 
roundish, } lin. long, becoming in fruit 2 lin. long and nearly as broad, 
cordate-orbicular, entire. Stamens 6; filaments short; anthers sagit- 
tate, 2 lin. long. Ovary triangular; styles 3, small; stigmas wide, 
fimbriate at the margin. 
Wile Land. Abyssinia: on the rocky island Tuluguto in Lake Zuai, Ellenbeck, 
1686. 
4. R. hararensis, Dammer in Engl. Jahrb, xxxviii. 61. A 
perennial. Stem slender, simple, about 34 in. high. Leaves lanceo- 
late-hastate, about 1 in. long and 1-6 lin. wide; ochree wide, mem- 
branous; petiole 9-14 lin. long. Flowers in leafy whorls from 4-9 
lin. apart; pedicels articulate below the middle. Calyx-lobes very 
narrow, acute, 4 lin. long. Corolla white; lobes lanceolate, margin 
3-4-toothed. Stamens 6; filaments very short; anthers sagittate. 
Ovary trigonous; styles 3, about } lin. apart; stigmas small, capitate. 
Fruit 1 lin. long. 
Nile Land. Abyssinia: Harar, on mountains, Ellenbeck. 
5. R. nervosus, Vahl, Symb. i. 27. A much-branched shrub, 
reaching a height of 6 ft. Leaves often crowded on short striate 
lateral branchlets, distinctly petioled, oblong, or the upper lanceolate, 
subacute, glabrous, 2-3 in. long, narrowed to the base, rather firm in 
texture, triplinerved; ochree truncate. Flowers dicwcious, forming 
ample lax or dense terminal panicles, the very compound lower 
branches only subtended at the base by reduced leaves; flowers 2-5 
in a cluster ; pedicels capillary, often longer than the flowers. Outer 
perianth-segments reflexed, inner in fruit cordate-orbicular, 3 lin. in 
diam., scarious, strongly reticulate.—Meisn. in DO. Prodr. xiv. 72; 
Aschers. in Schweinf. Beitr. Fl]. Aethiop. 171; Engl. Hochgebirgsfl. 
Trop. Afr. 203; Britten & Rendle in Gregory, Great Rift Valley, 397 ; 
Schweinf. in Bull. Herb. Boiss. iv. Append. ii. 153, R. persicarioides, 
Forsk. Fl]. Aigypt.-Arab. 76, not of Linn. R. alismefolius, Fresen. in 
Flora, 1838, 602; Meisn. I.c.; A. Rich. Tent. Fl. Abyss. ii. 230. 
Wile Land. Eritrea: various localities, Schweinfurth, 189, 1014, 591, 1035, 
1818, Schweinfurth & Riva,789! 1044! 1814! Abyssinia: near Adowa, Schimper, 
152! Mettaro, Schimper, 891! and without precise locality, Quartin-Dillon & Petit, 
