198 
Transactions of the Boyal Society of South Africa. 
Nov., 1916 ; coll. Sim (No. 8535). There is some doubt as to the- 
identity of the African plant with the original Eustichia longirostris (Brid.) 
from Tristan da Cunha ; if distinct, then it would need to be ascertained 
whether our plant be identical or not with the Madagascar form. In the 
former case it would be D. distichum (Schwaeg.) Card. ; in the latter it 
would require a new name. The differences suggested appear at best to be 
slight. 
D. africanum C. M. Sweetwaters, Natal, Feb., 1917; coll. Prof. Bews,. 
comm. Sim (No. 8636). Quite distinct from the other African species in 
the small size, very small, julaceous leaves, straight apiculus, and smaller 
cells. 
Anoectangium Wilmsianum (C. M.) Par. Groodoo, 6500 ft., Drakensberg, 
1915; coll. Prof. Bews, comm. Sim (No. 8380). Top of Drakensberg,. 
8000 ft., Basutoland, 1915; coll. R. E. Symons, comm. Sim (No. 8662), 
c. fr. ; Giant's Castle, 8000 ft., Natal, 1915 ; coll. R. E. Symons, comm. Sim 
(No. 8659). I name these plants with little hesitation from C. Mueller's 
description of Zygodon Wilmsianus. 
Zi/godon Simii Dixon, sp. nov. (PI. XI, fig. 8.) 
Z. runcinato C. M., affinis, habitu simimillimus. Differt foliis latiorihiis,. 
e basi late ovali late lanceolatis, hreviter late acuminatis, valde recurvo- 
squarrosis, conduplicatis ; marginibus inferioribus late valde recurvis, ad 
partem tertiam superiorem multo minus fortiter dentatis, dentibus parvis 
inter ma jora spinulosa interjectis, costa tenuiore, dorso multo minus promi- 
nente. Sterilis tantum notus. 
Hah.—To-p of Zwaartkop, 5000 ft.. Natal, 1917 ; coll. Sim (No. 8690).. 
Forming extensive cushions on nearly bare rock, mixed with Selaginella 
rwpestris. 
A fine species, with habit of Z. runcinatus, but quite distinct in the 
wider leaves, much less coarsely toothed, the strongly recurved margins at 
base, less prominent, weaker nerve, etc. (cf. PI. XI, fig. 11). 
Orthotrichum glaucum C. M. Cape Town, on trees ; coll. H. A. W. 
(Nos. 16, 568), c. fr. Hout Bay, CP., 1916; colL H. A. W. (No. 603), c. fr. 
Macromitrium, subgen. Macrocoma. I have received several specimens 
belonging to 3£. tetiue (Hook. & G-rev.), M. Dregei Hornsch., etc., but 
I have not attempted at present to unravel the intricacies of the South 
African species of this subgenus. 
Schlotheimia Grevilleana Mitt. Kaapsche Hoop, Transvaal, 1915 ; coll. 
H. A. W. (No. 321), c. fr., and Natal (No. 128), c. fr. Hogsback, Tjumie, 
CP., 1917 ; coll. D. Hend. (No. 343), c. fr. 
S. fevruginea (Hook. & Crev.) Brid. Giant's Castle, 6000 ft., Natal,. 
Nov., 1915; coll. R. E. Symons, comm. Sim. (No. 8534), c. fr. A 
curious form in dense cushions without any creeping stems ; these, I think,, 
have decayed away with age and dense growth of branching. 
