Psilotrichum.] CVI. AMARANTACEH (BAKER AND CLARKE). 59 
5. P. Schimperi, Lngl. Hochgebirgsfl. Trop. Afr. 207. Glabrous, 
except the flowers, 18 in. high, repeatedly branched. Leaves 2 by } in., 
linear-oblong, obtuse, subsessile. Spikes at the end of the branches 1-2 
in. long, linear, lengthening in fruit to 5 in., green ; small quasi-axillary 
spikesalsoadded. Perianth-segments broadly elliptic, 3-nerved, minutely 
hairy. Stamens of the genus. Ovary obovoid ; style shorter than the 
ovary ; stigma small, capitate-—Schinz in Engl. & Prantl, Pflanzenfam. 
LA. 111, 
Wile Land. Abyssinia: Begemeder; region of the River Reb, Schimper, 
1388 
6. P. gracilentum, C. 2. Cl. Glabrous, except the axis of the 
spikes, Branches 1-2 ft. long, remotely dividing. Leaves opposite, 
2} by ;4; in. Spikes simple, terminal on long peduncles, 1} in. long 
when young (3 in. long in fruit); axis very hairy. Perianth of the 
genus, $ in. long, nearly glabrous. Ovary of the genus; style rather 
longer than the ovary; stigma small, capitate—Centema gracilenta, 
Hiern in Cat. Afr. Pl. Welw. i. 890. 
Lower Guinea. Angola; Huilla, 3800-5500 ft., Welwitsch, 6511 ! 
Mozamb. Dist. Portuguese East Africa: Mendwe, Johnson, 315! British 
Central Africa: Nyasaland; Fort Young, Nicholson ! 
The flowers are solitary, and Hiern states that there are no staminodes; so that 
the genus is not Centema. 
7. P. confertum, (. B. Ci. Glabrate; branches long, with few 
distant leaves. Leaves opposite, 12 by ;4;in. Peduncle long, terminal ; 
compound spike pale brown, cylindric, 1? by 4 in., very dense. Perianth 
in fruit $ in. long; segments ellipsoid-oblong, striate, acute. Seed 1, 
half-ellipsoid, hard, brown.—Achyranthes conferta, Schinz in Bull. Herb. 
Boiss. iv. 420. 
Mozamb., Dist. German East Africa: Muansa, on Lake Victoria, Stuhlmann, 
4502! Tabora, Stuhlmann, 606 ! 
This appears very near P. gracilentum, but has the spike much denser. Scbinz 
by some accident, says the leaves are alternate, but nevertheless puts the plant in 
Achyranthes. 
8-9 are imperfectly known species of Psilotrichum proper. 
8. P. Ruspolii, Lopr. in Ann. [stit. Bot. Roma, ix.19. A glabrous 
herb ; branches 8 in. long. Leaves opposite, 1 by $ in.; lower attenu- 
ated into a petiole, upper sessile, often subcordate. Heads on terminal 
peduncles, 2 by 1 in., dense; partial inflorescences of 1 or 2 flowers. 
Ovary ovoid; style cylindric ; stigma bifid.—“ Resembles P. africanum, 
Oliver.”—Lopr. in Engl. Jahrb. xxvii. 59, in Malpighia, xiv. 452. 
Wile Land. Somaliland: between Bela and Daua Rivers, Riva, 1467. 
9. P. Robecchii, Lopr. in Ann. [stit. Bot. Roma, ix. 19. A 
glabrous much-branched herb, a foot high. Leaves all alternate, 1—2 in. 
long, ovate, attenuate on the petiole. Spikes terminal on long peduncles, 
