Rhynchostegium] uossbs (Gepp). 301 
in the British Museum set. En company with /, 
(No. 142) in grottoes by the river Lmnha ; Bterile July 1856. No. 203. 
."». R. oxyodon 
Hypnum (Ectropothecium) oxyodon Welw. ei Duby in Geneve, 
Mem.Soc. Phys. XXI. ii. p. 132. t. iii. fig. 7 (1872). Ectropothecium 
oxyodon Jaeg. el Sauerb. Gen. el Spec. Muse. ii. p. 537 (1879). 
Cazbngo. — Leaves Bingly nerved, Berrate. <m a trunk ejected by a 
rushing rivulet at ;in elevation of l'imki ft. on Serra de Muchaula : a 
few specimens with old Er. Jan. 1855. No. 185. 
(it>i.r\i;i> Ai.m. -Leaves o\ate, shortly acuminate, singly nerved, 
with margin acutely serrate : not sent to Duly. Pound sparingly in 
company with Marchantia at Fonte <le Capopa, near Canguerasange 
without fr. 1 Dec. 1 h.">4 . No. 195. On the rocks of the Casaballa 
rivulet in Sobato de Bumba ; without Br. Dec. 1855. No. 216. Also 
seen by Welwitsch in the Quisucula, Aug. L857. 
37. RAPHIDOSTEGIUM De Not. Epilogo d. Briol. [tal. 
pp. 17. L82. Rhaphidostegium, op. cit., p. 777 | L869). 
1. R. variegatum. 
Hypnum vcwiegatum Welw. et Duby in Geneve, Mem. Soc. 
Phys. XXI. ii. p. 43G. t. iv. fig. I (1872). ? Taxithelium variega 
tarn Jaeg. et. Sauerb. Gen. el Spec. Muse. ii. p. I*'.* (1*78). 
Ill ii i v. — A widely cajspitose, flavescent-green moss: fruit-stalks 
fusco-coccineous erect: capsules inclined: calyptrae elongate-cylin- 
drical, smooth, yellow, dropping off long before maturity. Common, 
but rather rarely fruiting, at the foot of trees on the bushy swampy 
plain near Humpataand Bmpalanca, atan elevation of 5b>0 to 5300 ft.: 
with fr. Feb. I860. No. 34. On the ground among bushes by the 
cataract of Ferrfto da Sola in the elevated plain of Lopollo ; without 
fr. Feb. I860. No. 21. Intermixed with hopterygiv/m at the foot of 
trees between Lopollo and Lake Ivant.ila ; Feb. 1800. No. 45 in part. 
2. R. concolor Gepp, sp. n. 
Dioicous. Plant slender, csespitose, in tufts 7 cm. wide. 
flavescent-green, shining. Stem creeping, with scattered rootlets, 
pinnately branched. Branches numerous, suberect, mostly simple, 
8 mm. long, homomallophyllous, 1*25 mm. wide with the have-. 
Leaves sub-orthostichous, imbricate, erecto-patent, from a con- 
tracted base ovate, suddenly longly and narrowly acuminate, 
excavate, with margins more or less revolute, serrulate above 
middle, subserrate towards apex, with 1 wo short nerves I cell- 
elongate narrowly sinuato-ellipt ic. very dilutely chlorophyllose, 
with pellucid hyaline cell-walls ; lowest basal cells COncoloroUS | 
alar cells 3 or 4, very lax, hyaline, very thin walk, 1 ; supra 
alar few. lux, hyaline. I 'ericlne! i.i 1 brad- 8, erect; outer O'G 
to 0*8 mm. long, lanceolate acuminate ; innermost 2'5 mm. long. 
elliptic lanceolate, suddenly very Longly and narrowly attenuate. 
remotely serrate towards apex, with cells larger and firmer. Seta 
15 mm. long, very slender, pale reddish, smootli. benl at apex, 
Theca incline 1 or horizontal, longly ellipsoidal, with a short neck, 
Fuscous. Peristome as in /.'. mriegatum. Operculum convex, 
shortl} and blunl ly rostrate. 
