Dixon: NEW AND RARE AFR :CAN MOSSES 77 
Perichaetium praelongum, 5-6 mm. altum, nitidum, foltis 
profunde plicatis, longe acuminatis, integris vel tenerrime denticu- 
latis, tenui-nervibus. Seta 2-2.5 cm. longa, rubra, theca circa 
3 mm. longa, curvata, asymmetrica, rufo-fusca. Peristomii dentes 
externi remotiusculi, lanceolati, opaci, transverse striolati, alte 
trabeculati; endostomii membrana altiuscula, papillosa; pro- 
cessus? Cetera ignota. 
Kemp’s gathering shows a handsome plant, the young branches 
bright green, the older part orange-brown. The widely cordate, 
deeply plicate leaves, intermixed with a dense growth of para- 
phyllia, give the stems quite a thuidioid appearance. The 
perichaetia are longer than in any other species with which I am 
acquainted, and the plant is altogether more robust than any of 
the species I have seen except P. denudata Kindb. 
Drepanocladus Hallii Broth. & Dixon, sp. nov. 
Caules erecti, 4-5 cm. alti, infra dense intertexti, caespites 
compactos, flavo-virides, interne pallidos formantes, subrigidt, 
laxe subpinnatim ramosi, ramis paucis, brevibus, circa .5 cm. 
longis, substrictis; caulium apices paullo incurvati, vix hamati. 
Folia caulina sat dense conferta, homomallo-falcata, parva, 
circa I mm. longa, e basi ovata vix decurrente breviter late oblique 
acuminata, concaviuscula, obtusa vel subacuta, integra; costa 
tenuiuscula, male definita, circa 2 folii attingens. Areolatio 
superior densa, opaca, e cellulis breviusculis incrassatis angustis- 
sime linearibus subvermicularibus instructa; cellulis inferioribus 
sensim laxioribus, basin versus lineari—rhomboideis; alaribus 
permultis, sensim angulos versus majoribus, quadratis et rectangu- 
laribus, pellucidis, omnibus subincrassatis. Folia ramea minora, 
angustiora, brevius acuminata, obtusa, vix falcata. 2 
Dioica. Flores feminei tantum visi, medio caule siti, aggre- 
gati; folia perichaetialia interna patentia, caulinis similia sed 
echlorophyllosa. Cetera ignota. [Fic. 7.] 
Hasitat: Cape of Good Hope, 1912, S. W. Hall 7, communi- 
cated by L. B. Hall. 
The affinity of this—for a Drepanocladu 
is no doubt with D. aduncus (Hedw.) Warnst. 
the short wide subobtuse acumen, and the numerous enlarged 
alar cells, which though very conspicuous, and the extreme an- 
gular ones rather large and pellucid, do not form well delimited 
or at all inflated auricles. 
s—well-marked species, 
It is peculiar in 
