184 
Transactions of the Boyal Society of South Africa. 
1917; coll. Sim (No. 8699) ; Giant's Castle, 8000 ft., Natal, 1915; coll. Sim 
(No. 8691). All sterile. 
What I take to be Lorentz' species varies very considerably in degree of 
robustness, but the forms agree with one another in leaf- structure ; the 
nerve is strongly lamellate at back, the leaves erect when dry so that 
the stems are penicillate, with more or less conspicuous hyaline points 
which are erect, not at all reflexed. No. 13c is one of the smaller forms 
with less developed hair-point, and agrees very well with Eehmann's M. 
Austr.-Afr. No. 56. 
C. imrpureo-aureus (C. M.) Par. Natal, coll. H. A. W. (No. 232) ; 
Griant's Castle, 8000 ft., Natal, 1915 ; and near top of Zwaart-kop, 5000 ft.. 
Natal, June, 1917; coll. Sim (Nos. 8690, 8700). Both the latter are 
elongate, slender forms, but structurally they present no difference. 
G. introfiexus (Hedw.) Mitt. Giant's Castle, 8000 ft., Natal, 1915 ; coll. 
E). E. Symons, comm. Sim (No 8689). A slender form, which is probably 
C. leindophyllus C. M., but I find nothing to separate it from C. introfiexus ; 
similar forms are not infrequent m New Zealand. 
C. leucobasis (C. M.) Par. Muizenberg Mts., Kalk Bay, 1500 ft., CP., 
1900 ; coll. C. H. Hobkirk, comm. G. Webster (No. 919) ; near Cape Town, 
1915 ; coll. H. A. W. (No. 344) ; Montagu Pass, CP., 1916 ; coll. H. A. W. 
(No. 567p.p.), c. fr. 
No. 919 has rather narrower supra-basal cells than in C. Mueller's plant 
and the subula is rather rougher, but I do not think the differences are of 
any importance. The other two plants are more exactly identical. The 
plant is to all intents and purposes, however, a form of C. introfiexus, with 
the back of the nerve smooth and not lamellate, and I doubt if it be really 
different from C. ptidicus (Hornsch.). 
C. hicolor (Hornsch.) Jaeg. Cape of Good Hope, 1912, coll. S. W. Hall 
(Nos. 4, 5, 9). This species, hitherto known from Australia only, must, 
I think, now be credited to S. Africa. The plants in question form three 
separate gatherings, one of them decidedly more slender ; all, however, agree 
in the structure of the leaf with the Australian plant, which is especially 
marked by the abruptly obtuse, cucullate apex of the leaf. In this it differs 
therefore from the G. pseudo-bicolor C. M. of Madagascar, which has a 
shortly pointed leaf. Like the Australian species also, the Cape plant, while 
showing obtuse, muticous leaves nearly throughout the stem, has a distinct 
short hyaline point on the floral leaves, and occasionally the comal leaves of 
sterile branches are acute cr shortly hyaline-tipped. For this reason, supple- 
mented by certain others drawn from Australian specimens, I have elsewhere 
given my opinion that the obtuse, cucullate apex of G. hicolor is to be con- 
sidered rather as an abnormal or varietal character than as a natural and 
specific one (c/. the British var. muticus of G. atrovirens). In that case it is 
probable that G. jpseudo-hicolor is really conspecific with the Cape plant. 
