BRYOPHYTA OF S. RHODESIA. 315 



(Schwaegr.) and the allied species of that group (B. natalensis) ; 

 but the tall, robust, very rigid stems, the rigidity of the leaves, 

 etc., give it a totally different character; the back of the nerve, 

 too, is less highly scabrous. Fleischer's f. steri/is of B. indica 

 shows some approach to it, and perhaps indicates a real affinity. 



Barbvla torquatifolia Geheeb. — Matopos (Wager, 898) St. 



A distinct species, hitherto only known from South- West 

 Africa, the leaves strongly twisted when dry, with broadly 

 recurved margins, rather large cells, and stout nerve excurrent in 

 a long cuspidate point. B. acutata CM. is described as having 

 the nerve only shortly mucronate, and the leaves lanceolate-acu- 

 minate; here they are oblong-lanceolate, and very little narrowed 

 above. 



General distribution : South- West Africa. 



Phascum leptoph ylhifn CM. — Zimbabwe, alt. 3.000 feet (Sim, 

 8711); Matopos, alt. '5,000 feet (Sim, 8857). Both sterile. 

 General distribution : Cape Province, Transvaal. 



Tortula brachyaechme (CM.) Broth. — Zimbabwe, alt, 3,000 

 feet (Sim, 8732, 8752); Khami Buins, alt. 5,000 feet (Sim, 8837). 

 Mostly in poor fruit. 



General distribution : Cape Province, Natal. 



I am increasingly doubtful whether this is separable from T. 

 erubescens. 



Tortula erubesrens (CM.) Broth. — Zimbabwe, alt. 3,000 feet 

 (Sim, 8773) St.; Bhodes' Grave, Matopos, alt. 5,000 feet (Sim, 

 8872a, 8873) St. 



General distribution : Eastern Africa from Cape Province to 

 Abyssinia and Somaliland ; cf. (4). 



Tortula eu-bryxim (CM.) Dixon. — Zimbabwe, alt. 3,000 feet 

 (Sim, 8736, 8780); Bhodes' Grave, alt. 5,000 feet (Sim, 8859, 

 8869). All sterile. The Zimbabwe plants in fine large tufts, with 

 stems an inch high. 



General distribution : Tropical East. Africa, Transvaal. 



Grimmiaceae. 



Ptycliomitrium crispatum (Hook, and Grev.) Schimp. — Zim- 

 babwe, alt. 3,000 feet (Sim, 8754, 8798, 8813); Khami Buins, 

 alt. 5,000 feet (Sim, 8865); Matopos, alt. 5,000 feet (Eyles, 1048). 



General distribution: Cape Province, Transvaal. 



Ptychomitrium marginatum (Wager and Dixon), Dixon 

 Comb. Nov. (Syn. Glyphomitrium marginatum, Wager and Dixon 

 in "Trans. Boy. Soc. South Africa," VIII, 196 (1920).— On rock 

 with south aspect, in kloof, Forest Hill Kop, Makoni (Eyles, 838). 



General distribution : Cape Province, Transvaal. 



Ptychomitrium eurybasis sp. nov. Dixon. 



E robustioribus generis. Ab omnibus speciebus africanis 



