Kctropothecium] mosses (Gepp). 307 
large and oblique mouth when dry ; operculum Bracbythecioid 
runic 0*5 mm. long; sporangium with operculum l'_' mm long. 
!•_'. LEUCOMIUM Mitt, in Journ. Linn. Boc. x. p. 180 | 
1. L. golungense Gepp, sp. n. 
Monoicous. Plants laxly csespitose, pale green, not glistening: 
stem creeping, sparingly and irregularly pinnately brai 
branchlets 5 to l<» mm. long by I to 5 nun. wide (with 
complanate, obtuse, with rather las foliage; lateral leaves patu 
Ions, rather curved, lanceolate, median leaves elliptic, all rather 
hollow piliform-acuminate, nerveless, quite entire; cells lax, 
rhomboidal; perich«tia] bracts much smaller, the innermost 
being truncate, erose, suddenly longly apiculate; seta 10 nun. 
long, red, towards its apex curved and slightly scaberulous ; theca 
inclined or horizontal, oval, occasionally substrumous, more or 
less constricted below the mouth when dry. 
Golungo Alto. Subglaucoscent (when gathered . very Iaxh 
csespitulose on rocks and tncs alongside the Catombe rivulet in the 
mountains of Alto Queta, bul in small quantity: with Er. middle of 
June 1857. No. 191. A moss of an intense and bright glaucous-gr< en 
colour, covering exposed muddy spots by rivulets in the primitive 
forests of Quisucula, in company with Begonia; with fr. June 1856. 
No. 192. On rocks in the forests of Queta-Zengas, growing with 
Spvucella mccida (No. 219); gathered with fr. (now lost), ao date. 
No. 191''. An elegant moss of a pleasant green colour, clothing with 
its wide tufts the rocks by the spring of Capopa ; < >ct. 185 I. No. 194. 
This Bpecies appears to be distinct from the Cameroons plant 
/. perglaucum Broth., described in Engler's Botan. Jahrb. Band. xxiv. 
p. 273 (1897), in several particulars, such as the foliage, the shape ot 
the leaves, and the theca. 
43. STEREOPHYLLUM Mitt, in Journ. Linn. Soc. Suppl i 
p. 117(1859). 
1. S. omalosekos Jaeg. et Sauerb. Gen. et Spec. Muse, ii p. 54 I 
(1879). 
Hypnum (Stereophyllum) omalosekos Welw. et Duby in Geneve, 
Men, s,,c. Phys. XXI. ii. p. 133. t. iv. f. 3 (1872). 
Pr/NGO Andongo. In enclosed rocky valleys near Catete on bark 
and on ground at the foot of trees : with fr. .May 1857. No 106. 
The upper cells of the leaves are unipapillate as in S. , ;.,,,.„ Mitt. 
The seta is 9 mm. long. 
2. S. andongense. 
Hypnum Andimgense Welw. et Duby in Geneve, Mem. Soc 
Phys. XXI. ii. p. L38. i. i. i'. I (1872). Raphidosiegium Andungensi 
Jaeg. et Sauerb. Gen. et Spec. Muse. ii. p. 156 (1878). Hypnum 
(Thamniun '.) decolorans Welw. et Duby, op. <it.. p. 435. t. iii. f. •"• 
(1872). Thamniwm decolorans Jaeg. et Sauerb., op. eit., p. 216 
(1877). 
Pi m..i Andongo.- <*n moist ground by rivulets in the Barranooe 
de Catete : with fr. May 1857. No 93. Barranco grande de I 
without fr. April and beginning of May 1857. No. 93/'. A widely 
csespitose, brilliantly green, moss found on tree trunks near ; 
