Dixon: NEW AND RARE AFRICAN MOSSES 71 
LEUCODON DRACAENAE Vent. 
Solai, Mt. Kenya, British East Africa, 1910, R. Kemp, com- 
municated by W. R. Sherrin. 
This agrees quite well with the specimen (Dendera, Abyssinia, 
1862) in the Schimper herbarium, determined by E. S. Salmon as 
L. Dracaenae. 
PILOTRICHELLA CONFERTA Ren. & Card. 
Barberton, Transvaal, January, 1914, H. A. Wager 257. 
This agrees quite well with the description of the above species 
(from Lessonto, South Africa); the only difference I can find being 
a minor one, viz., that the alar cells which there are described as 
“plus minus incrassatis et granulatis’” are here rather pellucid. 
It is a distinct species, the short, subdendroid, rather robust and 
rigid branching being very different from that of most of the 
African species of the genus. 
Thamnium capense Broth. & Dixon, sp. nov. 
Caulis pertenuis, flexilis, elongatus, vage subpinnatim vel 
bipinnatim ramosus; atroviridis, vix nitidus; rami ramulique com- 
planati, breves, obfusi. Folia ramea 2 mm. longa, late ovato- 
oblonga, superne angustata late acuta, ramulina multo minora, 
angustiora; omnia concavo-carinata, sicca paullo plicata, margin- 
ibus planis, e basi denticulatis, supra grosse regulariter dentatis. 
Costa valida, subsinuosa, infra summum apicem evanida, dorso 
prominens, supra spinuloso-dentata. Cellulae superiores pellucidae, 
hexagonae, angulatae, 8-I2 u latae, parietibus firmis, mec imcras- 
satis, marginem versus majores, elongatae, infra sensim longiores, 
hexagono-rectangulares, ad infimam basin elongatae, flavidae, 
parietibus incrassatis. Cetera nulla. [FIG. 2. 
Hapirat: in packing from Cape Town, 710, communicated by 
G. Webster. 
This species belongs to the small group with the nerve dentate 
at back above, to which belong the northern Th. alopecurum (L.) 
B.S. G., and Th. Leibergii E. G. Britton. The former differs in 
the more robust, dendroid habit, and smaller, denser, more 
the latter in the more rigid habit, more obtusely 
rcells. Th. maderense Kindb. is described 
h of Th. alopecurum, the 
The author 
incrassate cells; 
pointed leaves, and large 
as a much larger plant, with the growt 
cells rhomboid-oval, the leaves “ pauci-dentata,”’ etc. 
