66 Dixon: NEW AND RARE AFRICAN MOSSES 
DipyMopoN AFER (C. Miill.) Broth. 
Trichostomum afrum C, Mill. Hedwigia 38: 98. 1899. 
Near Pretoria, Transvaal, H. A. Wager 66b. a 
This agrees with a specimen, ‘‘ Transvaal, coll. Wilms, 2475, Br 
in the Kew Herbarium. It was mixed with another species 
Didymodon (Hydrogonium), which may be a form of Trichostomu 
afro-fontanum Rehm., but is rather widely different from Re 
mann’s specimen. 
Tortula Eubryum (C. Miill.) Dixon, comb. nov. 
Barbula Eubryum C. Mill. Flora 62: 379. 1879. 
Hilly rocks, Pretoria, Transvaal, H. A. Wager 15; Barberton, 
Transvaal, H. A. Wager 280. 
A very marked and distinct species, which I have no hesitatio 
in referring to Barbula Eubryum C. Miill., 
Africa (Ukamba, Kitui, Hildebrandt, 1877). 
tinct in the habit, the long, highly undulate, acute leaves with 
strongly recurved margin, the nerve strongly prominent at ba¢ 
and shining when dry, excurrent in a short robust mucro or cus 
and in the large, highly developed gemmae in terminal cups 
rosettes, as in J. pagorum (Milde) De Not. The similarity in thls 
respect, the habit, the lax (very fragile) basal cells, and the uppet 
areolation, leave no doubt, I think, that the proper position of the 
species is in Tortula (Syntrichia). Its occurrence in such wid y 
separated stations is a striking fact. 8 
C. Miiller described it first as the type of a new section 
undulate leaves). Mr. Wager’s specimens, showing both these 
characters in a very highly distinct fashion, confirm the accuracy 
of C. Miiller’s first observation. In view, however, of the occur 
rence of somewhat similar gemmae in T. pagorum, T. laeviptl 
var. laevipilaeformis (De Not.) Limpr., etc., the last chosen nat 
oo en 
* Gen. Musc. Frond. 463. gor. 
