56 CVI. AMARANTACEH (BAKER AND CLARKE). [ Centema. 
scabrid at the joinings of the cells, still finer than in the preceding 
genera. Stamens of the genus; staminodes obovate, toothed. Ovary 
glabrous.—Schinz in Eng]. & Prantl, Pflanzenfam. iii. 1A, 107; Hiern 
in Cat. Afr. Pl. Welw. i. 889 ; Lopr. in Engl]. Jahrb. xxvii. 47 in obs. 
Lower Guinea. Angola: Loanda, Welwitsch, 6538! Rattray ! Gossweiler! 
221! 291! 
2. ©. Kirkii, Hook. f. in Benth, et Hook. f. Gen. Pl. iii. 31. Stem 
erect, 2-3 ft. high, smooth. Leaves opposite, 2 by + in., when young 
hairy, soon glabrate. Inflorescences terminal, peduncled, straw- 
coloured, up to 24 by } in., very dense, in fruit rigid but very slightly 
prickly; short ovoid inflorescences not rare. Partial inflorescences 
usually with 2 fertile flowers; sterile flowers short, the midrib ex- 
current as a minute spine with scanty fine long hair on the back, 
which often disappears altogether in fruit. Processes between the 
filaments obovate, toothed. Ovary ovoid, hairy, narrowed at the top. 
—Lopr. in Engl. Jahrb. xxvii. 47 in obs.; Schinz in Engl. & Prantl, 
Pflanzenfam. iii. 1A, 107, in Engl. Pfl. Ost-Afr. C. 172. Achyranthes 
breviflora, Baker in Kew Bulletin, 1897, 280. 
Wile Land. British East Africa: Ribe to Galla Country, Wakefield! 
between Mombasa and Witu, Whyte! Ngomeni, 2500 ft., Scott-Elliot, 6365 ! 
Mozamb. Dist. Lake Tanganyika, Cameron! British Central Africa: 
Nyasaland ; west shore of Lake Nyasa, Kirk! Simons! Likoma Isles, Johnson ! 
Elephant Marsh, Scott! between Kondowe and Karonga, Whyte! and without 
precise locality, Buchanan, 1158 ! 
3. ©. biflora, Schinz in Engl. Jahrb. xxi. 183. Stem erect, 2-3 
ft. high, scabrid with tubercles on the ribs. Leaves opposite, up to 
3 by 4 in. (usually much smaller), pubescent; petioles in the large 
leaves $ in. long, in the small leaves hardly any. Inflorescences 
terminal, peduncled, up to 2 by } in., very dense, with often ovoid 
heads } in. long on the same stem. Partial inflorescences with 1 or 2 
fertile flowers, brown-reddish or red; sterile flowers with scanty long 
fine hairs on their back, the bracts ending in straight scabrid short 
spines. Staminal tube and sterile filaments of the genus. Ovary 
ovoid, hairy, conic at the top.—Schinz in Eng]. & Prantl, Pflanzen- 
fam. iii. 1A, 107, in Engl. Pfl. Ost-Afr. C. 172; Hiern in Cat. Afr. Pl. 
Welw. i. 889 ; Lopr. in Engl. Jahrb. xxvii. 47 in obs. C. polygonoides, 
Lopr. in Engl. Jahrb, xxvii. 48, in Malpighia, xiv. 442. Psilotrichum 
rubellum, Baker in Kew Bulletin, 1897, 279. 
Lower Guinea. Angola: Huilla; Morro de Lopollo, Welwitsch, 6509! 
Humpata; Chella Mountains, Johnston ! 
, Mozamb. Dist. German East Africa: Uhehe, 5000 ft., Goetze, 656! 
The Nyasa example is altogether larger than the Angola plants, and has mostly 
2-flowered partial inflorescences. 
4, C. rubra, Lopr. in Engl. Jahrb. xxvii. 49. Stemstriate. Leaves 
1} by 5 in., linear-lanceolate. Inflorescence 3 by 4 in., cylindric; 
