58 CVI. AMARANTACEH (BAKER AND CLARKE). [Psilotrichum. 
Leaves linear or linear-oblong. 
Leaves 3 in. broad; flowers green : . oo P. Schimperi. 
Leaves ;; in. broad; flowers white, pinkish 
or brown. 
Spikes cylindric, rather dense . : . 6. P. gracilentum. 
Spikes cylindric, very dense : . % P. confertum. 
**PsitosTacHys. Inflorescence of lax spikes in 
thin panicles with capillary branches. 
Main branches ending in a_ nearly leafless 
e 
7] 
panicle. 
Panicle branches trichotomous; perianth 
hairy. < 3 : . 10. P, cordatum, 
Panicle branches racemosely branched; peri- 
anth glabrous : : i : _ 11. P. Kirkit. 
Main branches ending in a tuft of leaves; 
panicles axillary. 
Stem glabrate; perianth hispid . : . 12. P. avillare. 
Stem hairy; perianth glabrous . : . 13. P. edule. 
1. P. africanum, Oliver in Hook. Ic. Pl. t. 1542. A small much- 
branched shrub; branches woody, glabrate. Leaves 1-2 in. long, elliptic 
or ovate, narrowed at either end, when mature puberulous or obscurely 
pubescent ; petiole 4-1 in. long. Spikes 3 by 4 in. (or shorter), 8-20- 
flowered, white, very short-peduncled; rhachis hairy, terminal and 
axillary. Perianth-segments } in. long, minutely hairy.—Oliver in Trans. 
Linn. Soe. ser. 2, Bot. ii. 348; Schinz in Engl. & Prantl, Pflanzenfam. 
iii. 1A, 111 and 112, fig. 65, in Eng]. Pfl. Ost-Afr. C. 173. | 
Nile Land. British East Africa: Ribe, near Mombasa, Wakefield! Siani, 
300 ft., Kaessner, 340 ! 
Mozamb. Dist. German East Africa: Kilimanjaro, 5000 ft., Johnston ! 
Tanga, Volkens, 178! Holst, 2119! Portuguese East Atrica: Lower Zambesi; 
between Lupata and Tete, Kirk! opposite Sena, Kirk ! 
2. P. concinnum, Baker in Kew Bulletin, 1897, 279. Stem stout, 
woody; branches 16 in. long, slender, hairy, with slender secondary 
branches ending in spikes. Leaves 1 in. long; petioles 1, in. long: 
Ovary granular-subtubercular at the top; otherwise as P. africanum, 
Oliver.—P. africanum, var. debilis, Schinz in Engl. Jahrb. xxi. 185. 
Mozamb. Dist. British Central Africa: Nyasaland; Blantyre, Last / 
3. P. trichophyllum, Baker in Kew Bulletin, 1897, 279. Branch 
a foot long. Leaves 2 by 3 in., shortly copiously hairy on both surfaces ; 
otherwise as P. concinnum, Baker. 
Mozamb. Dist. Portuguese East Africa: at Shamo, near the mouth of the 
River Shire, Kirk ! 
4, P. Elliottii, Baker. Leaves 1 by } in., ovate, rounded at the 
base, subsessile ; otherwise as P. concinnum or P. trichophyllum. 
Nile Land. Uganda: east side of Lake Albert Edward, Scott-Elliot, 8062! 
