l6 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 72 



Hab. : Tree heaths, 13,500 ft. ; No. 3430. Bamboo Zone, 7,000 ft. ; 

 No. 3763. Heath Zone, 12,000 ft. ; Nos. 3768b, 3775. All c. f r. 



Very near to B. salehrosum (Hoffm.) and perhaps not specifically 

 distinct ; but as that species has not been recorded from tropical 

 Africa, and as the present plant exhibits certain characters of dis- 

 tinction, notably the golden, glossy coloring, the terete branches, 

 and a suberect, only slightly curved, narrower capsule, I have pro- 

 visionally treated it as distinct. 



BRACHYTHECIUM DUMMERI Dixon, sp. nov. 



(PL 2, fig. 10.) 



Subgen. Cirriphyllopsis. Habitu B. stricto-patentis C. M. 

 capensis vel formarum gracillimarum B. implicati (Hornsch.). 

 Gracile, laete viride, vix nitidum, dense pinnatum, ramis circa i cm. 

 longis. , Folia madida rigidiuscule erecto-patcntia, e basi cordato vel 

 hastato triangidaria, sensim longe acuminata, ubique denticulata ; 

 ramea brevius latiusque acuminata, dense ct argute denticulata, con- 

 caviuscula, vix striata, nee plicata ; marginibus planis vel basin versus 

 angustissime recurvis ; costa basi sat valida, superne foliis caulinis 

 multo, rameis paullo attenuata, circa secundam tertiam partem folii 

 attingens. Cellulae superiores perangustae, inferne seriebus pluribus 

 Inulto breviores, laxiores, pellucidae, alares sat numerosae, parvae, 

 subquadratae. 



Autoicum. Perichaetia majuscula, archegoniis numerosis, foliis 

 erectis, latis, in acumen siiMlifonnc rcflexuni, denticulaturn raptim 

 angustatis. Seta 1-1.5 cm. longa papulosa. Theca horizontalis, 

 fusca, brevis, vetustate sub ore contracta, operculo conico, obtuso. 



Hab.: Heath Forest Zone, 12,000 ft.; epiphytic; Nos. 3, 3425b, 

 3447e, 3760, 3761 ; all c. fr. 



Brachythecium stricto-patens C. M., which this resembles in having 

 the leaves rigidly subpatent when dry, differs in its smooth seta and 

 dioicous inflorescence ; B. implicatum in its larger size and strongly 

 striate-plicate leaves. B. atrothcca Duby is more robust, with wider, 

 less rigid leaves and wider cells. 



RHYNCHOSTEGIELLA ALGIRIANA (Brid.) Broth. 



Epiphytic, on wood, Heath Zone, 12,000 ft.; No. 3447b; c. fr. 

 Also No. 3773 in the Kew set. This plant is exactly our European 

 and Northern African form, golden green. The epiphytic habit is 

 unusual, but is not unknown with us (the var. scabrcllum, indeed, is 

 usually so). R. Holstii P)roth.. from Usam1:)ara, etc., is a green plant 



