BRYOPHYTA OF S. RHODESIA. 305 



FlSSIDENTACEAE. 



Bryoidium. 



Fissidens androgynus Bruch. — Victoria Falls, alt. 3,000 feet 



(Sim, 8881, 8903, '9826, 8929, 8946); Victoria Falls (Wager, 

 890 p.p., 901); Cataract I., Victoria Falls (J. Burtt-Davy, 



17,829). All c.fr. This distinct, synoicous species is evidently 



abundant about the Falls. The stout, often reddish border, recalls 

 F. rufulus. 



General distribution : Cape Province. 



Fissidens cuspiddtus CM. — Bulawayo (Wager, 895 p.p.) St. 



General distribution : Cape Province, Natal, Transvaal. 



I am moreover quite unable to distinguish from this species 

 a plant from the Himalayas, and I am inclined to think it may 

 prove to' be a widely distributed species under several names. 



Fissidens latifolius sp. nov. Dixon. 

 Caespitosus vel dense aggregatus sat robustus plerumque 

 corticola, atro-viridis. Caulis saepius simplex, usque ad I cm. 

 longus, plus minusve procumbens, strictiusculus. Folia madida 

 complanata, sicca crispo-falcata, haud conferta, late oblongo- 

 lanceolata , breriter late acuta saepe ohtusiuscula apiculataque . 

 Lamina vaginans paullo dimidiam partem folii superans, summo 

 apice acute ad mediam. partem laminae ferminata, lamina dorsalis 

 folii basin attingens ibique saepe perl at a vix auriculata, angustis- 

 sime decurrens 



Folii margines omnes limbo hyalino perangusto, dorso saepe 

 angustissimo, nonnumquam carenfe, circumdati. Costa sat valida, 

 superne subflexuosa, concolor, percurrens vel infra summam apice.n 

 evanescens. Cellulae parvae circa 7/x, laeves, chlorophyllosae, 

 perdistinctae, subrotundatae hexagonaeve, saepe pulchre seriatae, 

 parietibus firmis, tenuibus. Seta longiuscula, 6 mm. ad 8 mm. 

 alta, purpurea; theca inclinata, gibbosa, perbrevis minuta. Peris- 

 tomium normale. 



Habitat: Zimbabwe, alt. 3,000 feet (Sim, 8766) c.f . ; 8807 

 c.fr.; 8753, 8761 and 8768, St.); Khami Ruins, alt. 5,000 feet 

 (Sim, 8841, St.); Matopos, alt, 5,000 feet (Sim, 8856 c.fr.); on 

 ground in shade, Salisbury, alt. 4,900 feet (Eyles, 1574). 



The nearest species is probably F. sitbremotifolius CM., 

 which I have not seen, but the description of that does not agree 

 in several points, especially "pedunculo et perostomio brevissimo" 

 and "nervo ferrugineo." The wide, not tapering, leaves are char- 

 acteristic. The vaginant lamina terminates neither on the nerve 

 nor at the margin, but in the middle of the lamina, an unusual 

 position. 



From its distribution and characters it seems to be as dis- 

 tinctly xerophytic as F. androgynus is hygrophytic. 



Fissidens dubiosus sp. nov. Dixon. 



Robustus, atovurens; caules elongati, ad 2 cm. lonsfi, sim- 

 plices, pulcherrime plumosi, latitudine ubique fere aequali, circa 



