Onidia.] cxviii. thymel^ace^ (pearson). 219 



5. G. Thomsoni, H. H. W. Pearson. Flowering stems slender, erect, 

 glabrous, branched, G-9 in. high. Leaves linear, acim)inate, acute, 

 glabrous, J-} in. long. Heads many-flowered, peduncled ; involucral 

 bracts G-8, elliptic, acuminate, acute, with distinct midrib, thin, 

 coloured, erect during flowering, J in. long. Flowers 4-merous, 

 minutely pedicellate ; pedicel silky-villous at the summit. Calyx-tube 

 quite glabrous below the articulation, glandular and puberulous above, 

 about J in. long ; lobes elliptic, concave, obtuse, slightly incurved at the 

 apex. Petals reduced to slender capitate papillae J- J lin. long. Anthers 

 of the lower whorl imperfect. Ovary glabrous. 



XWozamb. Bistr. German East Africa : lower j)lateau north of Lake Nyasa, 



Thomson ! 



0. G. Welwitschii, Hiem in Cat. Afr. PL Welw. i. 928. Stems 

 erect, simple or little branched, glabrous, 1-3 ft. high, arising from a 

 thick woody rootstock. Leaves alternate or crowded, linear, acute, 

 rigid, glabrous, J-| in. long, J-J lin. broad. Heads terminal, many- 

 flowered (about 24:) ; peduncle leafless, short ; involucral bracts about 8, 

 oval-obovate, obtuse or mucronate at the apex, coloured orange or 

 reddish, glabrous or minutely gland-dotted, J in. long. Flowers 4-merous, 

 vermilion or scarlet, scarcely ^ in. long ; pedicel rather thick, villous 

 at the apex. Calyx-tube slender, glabrous below the articulation, 

 puberulous above ; lobes broadly ovate, obtuse, pilose on the back, 1 lin. 

 long. Petals small. Fruit y^ in. long. 



IiO^ver Guinea. Angola : \\\ bushy pastures between I>K)pollo and Hunii)ata, 

 and in the dry open Moniuo forests, Welwit.tch, 6482 ! 



7. G. Schweinfurthii, Gilg in Engl. Jahrh. xix. 2(11. Flowering 

 stems erect, laxly branched, stout, glabrous, 1-2 ft. high, apparently 

 arising from a stout rhizome. Leaves scattered, lanceolate or oblong, 

 obtuse or subacute, narrowed at the base, glabrous, shortly petioled, 

 J-1 in. long, 2-3 lin. broad. Heads 15-25-flowered, terminal or in 

 loose, axillary, 1-3-headed, long-peduncled, more or less leafy racemes ; 

 involucral bracts 4-5, broadly ovate or subrotund, rounded at the apex, 

 papery, coloured, about \ as long as the flowers. Flowers 4-merous, 

 brownish-yellow {Schiceinfurth)^ pedicellate ; pedicels about \ lin. long, 

 bearing a brush of long erect white hairs. Calyx- tube glabrous below 

 the articulation, pubescent above, about J in. long; lobes oblong, 

 rounded at the apex, pubescent below, about 1 lin. long. Petals linear 

 or subulate, thinly membranous, about J lin. long. Ovary glabrous. 

 Fruit ovoid, acuminate, obtuse, smooth, 1-1 J lin. long. 



XTortli Central. Eastern Chari : near Vou, Chevalier, 7391 ! between Vou 

 and Ndelli, Chevalier, 1401 ! 



Xile I.and. Bongo : Sabbi, Schweinfurth, 2851 ! 



8. G. Buchananii, Gilg in Engl. Jahrh. xix. 201. Flowering 

 stems numerous, erect, much-branched, stout, 1-2 ft. high, arising from 



