bRYOPHYTA OF S. RHODESIA. 303 



General distribution: Cape Province, Transvaal. 



Campylopus nano-tanax CM.- — Acropolis, Zimbabwe, alt. 

 3,250 feet' (Sim, 8820) St. 



General distribution : Zululand, Transvaal. 



Campylopus angustinerris sp. nov. Dixon. 



Humilis, caespites densissimos, olivaceos, vix 1 cm. altos 

 imtruens. Folia parva, 2.5 mm. ad 3.5 mm. longa, stricta, sicca 

 plerumque parum mutata, raro subflexuosa per totam longitu- 

 dinem valde con valuta, tubulosa; lineari-lanceolata, superne 

 convoluta, dorso scabernla, apice cito brevissime raro longiuscule 

 hyalino-cuspidata. Costa angusta, ] ad J? folii latitudinem inferne 

 occupans; sectione tenuis, duces parvos, cellulas ventrales subae- 

 quales vel minores, dorsales substereideas tantuw exhibens. 

 Cellulae basilares rectangulares, hyalinae, parietibus tenuibus, 

 marginum versus angustissimae, limbum latum hyalinum instruen- 

 tes, alares nullae, superiores august e rhomboid ear , parietibus 

 tenuibus, sinuosis. 



Theca (a cl. Mitten delineata) seta perbrevi cygnicolli ellip- 

 tica, symmetrica, operculo conico-rostellato, calyptra basi longe 

 fimbriata, peristomio (ut videtur) dicranaceo. 



Habitat: In deep green tufts, The Downs, Pietersburg, alt. 

 4,000 feet, Transvaal, November, 1918 (Rev. IT. A. Junod, 4001 

 in herb. Sim); Belfast, 1919 (Wager, 884); Rhodes' Grave, 

 Matopos, alt. 5,000 feet (Sim, 8862); Zimbabwe, alt. 3,000 feet 

 (Sim, 8789, 8806); "On earth at Camp," Central Africa (Han- 

 nington, in herb. Mitten, unnamed; three different gatherings, 

 one, fide Mitten, c.fr.). All the above plants with this exception 

 sterile. 



A very distinct species in the habit, the position and con- 

 volute form of the leaves when dry, the narrow nerve, and the 

 cell structure of the latter and the lamina. The nerve shows, as 

 far as I have examined it, only three layers of cells, all subequal, 

 but varying in relative size to some considerable extent either in 

 different leaves or at different positions in the leaf. The guide- 

 cells and those of the ventral layer are sometimes subequal, at 

 other times the latter are much smaller, and the row of guide- 

 cells is then very much nearer the front of the nerve. The dorsal 

 cells are substereid and obscure, forming a rather thicker layer, 

 Out I have not found actual stereid cells, and am inclined to 

 place the plant in the Subgenus Pseudo-campylopus. 



C. cailleae Ren. and Card, from Nossi Comba is the most 

 closely allied species, but that has auricles moderately developed. 



It is rather curious that the above eight gatherings of this 

 undescribed species by four different collectors, from such different 

 parts of Africa, all came into my hands within the space of about 

 a month. 



Campylopus lepidophyllus (CM.) Jaeg. — Zimbabwe, alt. 

 3,000 feet^ (Sim, 8785) St.' 



