312 BRYOPHYTA OF S. RHODESIA. 



superne sordide viridis, inferne pallide rufescens. Folia parva, 

 1 mm. ad 1.5 mm. longa, supra sensim majora, patentia, recurva, 

 sicca crispata, e basi pcrbreri, hand latiore, lingulata, obtusa vel 

 minute apiculata, marginibus planis, integris ; costa validiuscula, 

 superne angustata, vix pellucida, carinata, dorso laevis vel sub- 

 laevis, infra apicem soluta vel subpercurrens. Cellula© superiores 

 perobscurae, liniitibus hand, nisi foliis senioribus, decernendis, 

 plus minusve 7jm lata©, seriebus longitudinalibus dispositae ; basil- 

 ares hand multi rectangulares, vel lineares, hyalinae. Perichaetium 

 longe exsertum, conspicuum, bracteis interioribus convolutis, tubtt- 

 losis obtusis. Seta 6 mm. ad 8 mm. longa, tenuissima, flava; tbeca 

 parva, cyiindrica, late annulata, operculo breviore, cellulis 

 spiraliter contortis ; peristomium bene evolutum, sed fragile, 

 torquatum, basi brevi tubulari aurantiaca. 



Habitat: Clay bank, Umtali, alt. 4,200 feet (Eyles, 1741). 



This appears a very distinct species in the small, Ungulate, 

 widely rounded and obtuse or bluntly apiculate leaves with very 

 obscure upper cells and tubular, exserted peTichaetium. The 

 capsules are all immature, but sufficiently advanced to show that 

 the peristome is quite barbuloid. Some African species of the same 

 affinity have been placed under Barbula (Streblotrichum) on 

 account of the long tubular perichaetium; but the plane^margined 

 leaf and dense obscure upper cells appear to me to indicate Tor- 

 tella ; otherwise I do not see on what grounds the two genera can 

 be kept apart. 



Hyophila atrovirens (CM.) Jaeg.— Victoria Falls, alt. 2,500 

 f ee t^5,000 feet. (Sim, 8885b, 8886, 8894, 8916, 8924, 2925). All 

 sterile. Evidently one of the abundant species of the neighbour- 

 hood, and found both above and below the Falls. No. 8924 is a 

 narrow-leaved form, with narrower, much less rounded apex than 

 usual, and indeed sometimes somewhat acute; the margin is very 

 variably dentate, often quite entire. There is nothing definite, 

 however, to separate it from the present species. 



General distribution-: Natal, Transvaal, Portuguese East 

 Africa. 



Hyophila baginsensis (CM.). — Zimbabwe, alt. 3,000 feet. 

 (Sim, 8831) c.fr.'; Rhodes' Grave, Matopos, alt. 5,000 feet (Sim, 

 8868) St.; Victoria Falls, alt, 3,000 feet (Sim, 8880, 8883) St, 



This plant differs from the preceding in the habit and colour, 

 ©ntire leaves. It agrees (e descr.) quite well with C Mueller's 

 species from Niam-Niam, and is not very closely allied to any of 

 the other African species of the genus. //. potieri has strongly 

 mucronat© and narrower, oblong leaves. 



General distribution : Niam-Niam. 



Hyophila perrobusta Broth (2). — Victoria Falls, on tree 

 trunks, coll. Brunnthaler. 



