ON CENTRAL-AFRICAN PLANTS. 31 
or nearly so, with a specimen in the Kew Herbarium from the Apies river, Transvaal, 
collected by Nelson, no. 102, partim. 
Serpa Pinto, no. 58. 
44. SCHMIDTIA QUINQUESETA, Benth. MS. in Herb. Kew., vel affinis. 
This species, which our species approaches, or perhaps belongs to, is illustrated by 
specimens which have been distributed from the Polytechnic School of Lisbon as part of 
the herbarium of Dr. A. R. Ferreira. It occurs also іп Senegambia; in the Mozambique 
district, having been collected by Dr. J. Kirk at Shiramba, in dry plains, in January 1860; 
in the Transvaal, having been collected by Dr. W. С. Atherstone and by Mr. MeLea in 
plains; in dar-Fur, at Gebel Sungur, distr. Surutj, having been collected by Dr. Т. 
Pfund, no. 617, September 23, 1875; and in the southern part of the Kalahari region of 
Extratropical South Africa, having been collected by Burchell, no. 2861, in a walk from 
Giraffe Station to the First Camelopardalis, October 3, 1812. This species was referred 
in manuscript by Munro to a different genus. It differs from the original species of the 
genus, which belongs to the Cape-Verd Islands, by the more spreading and conspi- 
cuous setze of the spikelets. 
In our specimen, which is without foliage, the inflorescenec is less dense and less 
highly compound, and the setze, though conspicuous, yet are less spreading than in the 
types of S. quinqueseta. The genus was described by Steudel in J. A. Schmidt’s * Beiträge 
zur Flora der capverdischen Inseln, pp. 144, 145 (1852), and sac as at present 
known, only of the species mentioned above. 
Serpa Pinto, no. 34. 
45. TRIRAPHIS sp. ?, vel affinis. 
In our specimen the flowers are in very young bud, and there are no leaves; it, how- 
ever, seems to be near or to belong to this genus, which is at present known to consist 
of 5 species from Australia (See ‘Bentham and Mueller’s Flora Australiensis,’ vol. vii. 
рр. 603-605 (1878)), and of one species from the Caledon river, in Extratropical South 
Africa. 
Serpa Pinto, no. 59. 
46. Снтовів PETRÆA, Thunb. Prodr. Pl. Сар. i. p. 20 (1794); Steud. Syn. Pl. Gram. 
p. 207, n. 59 (1855). .Eustachys petrea, Desv. Journ. de Bot. 1813, i. 69; Kunth, 
Enum. Gram. i. p. 262 (1833), cum syn. 
This species has a wide distribution, occurring also in the Cape districts, in the Orange 
Free State, in the West Indies, and in the southern states of North America. It is also 
given as an Abyssinian plant by Schweinfurth and Ascherson in Schweinfurth’s * Beitrag 
zur Flora /Ethiopiens,' i. p. 298, n. 3505 (1867). 
Serpa Pinto, no. 57. 
47. ERAGROsTIS GUMMIFLUA, Nees ab Esenb. Fl. Afr. Austr. i. p. 398 (1841); Steud. 
Syn. Pl. Gram. р. 271, n. 111 (1855); vel affinis. 
