Neu) and Interesting South African Mosses. 
193 
c. fr. ; Eosehaugh, 4000 ft., Transvaal, Dec, 1914 ; coll. Sim (No. 8540) ; 
Maritzburg, 4000 ft., 1917; coll. Sim (No. 8705), c. fr. This last locality, 
Mr. Sim remarks, is several hundred miles further south than it was 
previously known. 
Cardot, in the 'Mousses de Madagascar,' has given strong reasons for 
uniting the African plant with the Indian L. squarrosum. He also points 
out the variability of the plant, and in view of this I should have no hesita- 
tion in referring E.ehmann's L. armatum to the same species ; L. armatum 
Rehm., M. Austr.-Afr., No. 46, would be L. squarrosum var. imludosum 
(Ren. & Card.) Card., while L. armatum var. hrevifolimn, Rehm., No. 467, 
would be ordinary L. squarrosum, in my opinion. 
Hyophila atrovirens (Rehm.) Broth. Zwaartkop Valley, Maritzburg, 
on wet stones in stream, 2500 ft., June, 1917; coll. Sim (No. 8685). The 
plant, Mr. Sim notes, is always saturated, often submerged, and is abundant 
in some of the Natal streams, but not fertile. A single capsule of Rehm., 
M. Austr.-Afr., No. 475 (not 495 as cited by Paris), showed a distinct 
annulus. Rehm., No. 121, Tricliostomum riparium, contains a mixture of 
this plant sterile, with fruiting Glyphoynitrium cucullatifolium. 
H. Zeyheri (Hampe) Jaeg. Hogsback, Tjumie, CP., 1917 ; coll. 
D. Hend. (No. 352a). Maritzburg, 2000 ft., 1916; coll. Sim (No. 8253), 
c. fr. Also, as Hymenostomum opacum Wager, from dry banks, Pretoria, 
1910, and Barberton, Transvaal, 1914-5 ; coll. H. A. W. (Nos. 20, 278), c. fr. 
Further, as " Hymenostomum (or ? Weisia) hyophiloides Wager & Broth., 
sp. n.," from Pretoria, coll. H. A. W. (No. 222 or 240 "), c. fr. 
I find on careful comparison that there is nothing to separate these last 
two plants from Hyophila Zeyheri, which appears to be a little-known 
species, and, as Brotherus points out, of somewhat doubtful position. The 
vegetative characters are those of Hyophila, while the short, oval capsule, 
which may have the mouth closed on deoperculation with a membrane, 
suggests Hymenostomum. 
Bidymodon Fottsii Dixon, sp. nov. (PI. XI, fig. 5.) 
Dense coespitosus, superne saturate olivaceus, inferne pallide fuscus ; 
caules circa 1 cm. alti, parce divisi, graciles ; folia laxiuscula, apice sub- 
comosa, brevia, 1 mm. longa, patula, sicca erecta suba/ppressa, haud torquata, 
e basi latiore subdecurrente late lanceolato-lingulata, Si])ice rotundato, subacuto, 
sen rarius obtuso, marginibus angustissime reflexis; costa latiuscula, per totam 
longitudinem subaequalis, nec supra angustata, carinata, infra apicem soluta, 
dorso ubique scaberula. Cellulae chlorophyllosae, aetate inanes pellucidae, 
hexagonae vel subrotundo-quadratae, parietibus tenuibus, circa 8 /x latae, 
tenuiter papillosae ; basilares parum majores, haud elongatae, suhquadratae. 
Dioicus. Folia perichaetialia majuscula, intima brevia obtusa. Seta 
"75-1 cm. longa, rubra ; theca breviter elliptica, castanea, nitens, operculo 
rostello cellulis seriebus subrectis dispositis. Peristomium nullum. Exo- 
