2 
p. 86. P. madagascariense, Spreng. Syst. vol. 1. p. 317; Dur. & 
Schinz, Consp. Fl. Afr. vol. v. p. 753; Hack. in Bull. Herb. Boiss. 
vol. iv. App. iii. p. 14; K. Schum. in Engl. Pfl. Ost-Afr. C. 
p- 103 ; Rendle in Cat. Afr. Pl. Welw. vol. ii. p. 182 pro parte ; Cour- 
demoy, Fl. Réun. p. 118. P. airoides, Nees, Agrost. Bras. p. 175. 
Tricholaena glabra, Stapf in Dyer, Fl. Cap. vol. vii. p. 446; Eyles 
in Trans. Roy. Soc. 8. Afr. vol. v. (1916), p. 301. Melinis Monachne, 
Pilg. in Engl. Bot. Jahrb. vol: xxxiii. p. 51. 
TropicaL and SusrropicaL Arrica. From South Angola through 
Rhodesia to Portuguese Africa, thence southward through the Trans- 
vaal to Natal and northward through the Tanganyika Territory to 
British East Africa and Zanzibar. Madagascar and Mascarenes. 
Xyochlaena comprises a number of species which might be classed 
either with Tricholaena or with Melinis if their characters were 
X. capensis (T. capensis, Nees), and possibly X. vestita (Panicum 
Il mine. . arenaria 
and X. capensis are natives of the drier parts of South Africa, whilst 
X. vestita is confined to Socotra. They are, like X. monachne, emi- 
nently xerophytic grasses, and often found under conditions of desert 
type. The name Xyochlaena is intended to allude to the reduction 
or absence of the silky indumentum of the spikelets of T'richolaena. 
The epithet monachne has nothing to do with the genus Monachne 
of Beauvais, which is by his description and by fig. ix. of tab. x. of 
his Agrostographia a species of Friochloa, but is, by fig. x. of the same 
plate, Panicum Urvilleanum, Kunth, a totally different type.——O. StaPr. 
Fic. 1, pair of spikelets ; 2, spikelet in flower ; 3, lower glume; 4, upper glume 
flattened out ; 5, half of valve of lower floret ; 6, valvule of same, flattened out ; 
7, upper floret in flower; 8, valve of same, flattened out. All enlarged. 
