Thuddiwn] uossbg (Gepp). 
111 liarriinro do L'unyo : with iinuiatiin !'r. Maj L857. No 103 
(■a->|iit(isc, growing on the sh:ulcil wrtrncks.it' Barrancode8 lotonio 
with capsules very few, young and < •• m i j )]• • t •- with opcrcnla Miv 18 ■', 
No. 103/'. A meagre moss with lonely cxcnrrenl branches, mixed with 
other mosses (especially Stereophyllum andongetw No 95) al tl 
of old trunks near Cnmlo. not far from tin- greal cataract of the rivi E 
Cuanza; with a solitary fr. March 1857. No. 104. 
Golungo Alto.— A csespitose moss, common on thi rocks of th< 
Capopa rivulet, bul seldom producing t'r. ; with fr. Dec. 1855. Also 
Casoata de Capopa ; with young fr. May 1856. No. 173- T( n 
Zengas do Qneta : with fr. and young Bowers 9 Now 1855. No. 173'- 
On muddy ground on the hanks of rivulets : with fr. July 1857. N" 
173''. On the hill-slopes of Sobato de Qtulombo towards the river 
Zenza ; with fr. Feb. 1855. No. 209. 
The inner perichstial leaves of all the above specimens bear a few 
long articulated ciliary filaments on each margin above tin middle 
2. T. angolense Welw. et Duby w Geneve, Mem. Soc. Phys. 
XXI. ftp. 141. t. v. fig. I (1872). 
Hi illa. — On the bark of living trees in the forests of Blonino, bnt 
rather rare; with scanty fr. beginning of Dec. 1859. No 23. Bather 
rare (so at least it appeared to Welwitsch, who was pressed for time 
when he traversed the locality) at the Cool of old trunks and upon 
almost lifeless trunks in the more open forests near the great lake of 
[vantala ; with scanty fr. end of Feb. i860. No. 46. 
3. T. involvens Mitt, in Journ. Linn. Sue. \ii. p. 575 (1869). 
Leskea involvens Hedw. .Muse. Frond, iv. p. 27. t. \i. (1797). 
Goli ngo Alto. — A dull-green creeping moss, bearing capsules and 
calyptras and occurring abundantly on trees of Pacouria by the banks 
of the river Coango ; with fr. June 1856. No. 174. 
Duby discusses this plant in a note under '/'. ten i ^ 
Duby in Geneve, Mem. Soc. Phys XXI. ii. p. 142 (1872). Our 
specimens have only very young fruit. 
I. T. tenuissimum Welw. el Duby in Geneve, M6m. Soc. Phys. 
XXI. ii. p. 142. t. v. fig. ■_' (1872). ' 
Pungo Andongo. -On moist ground by the side of rivulets in 
Barranco grande de Catete ; with fr. middle of May 1857. No. 51 
Goli ngo Alto. On the bank- of the Cuango river; without fr, 
Feb. 1856. No. 204. 
This species is perhaps identical with T. perbg uu I Muell. e.\ 
Broth, in Engl. Bot. Jahrb. XXIV. ii. p. 283 1 1897). The differeno 
of the latter lies in the inclination of the theca and in the number 
of its cilia, as described. 
5. T. gratum Jaeg. et Sauerb.Gen. ei Sp. MEusc. ii. p. 322 < 1878). 
Hypnwm gratum Pal.-Beauv. Prodrome, p. 64 (1805 , 
Goi.i m.m Ai.ro.— (Ja the older trunks in the elevated primitive 
woods of Serra de Alta Queta, at an elevation of 2200 ft. al 
level; with t'r. .Ian. 1856. No. 143. On shaded rocks byth< 
the Capopa river ; very seldom producing fr. : with t'r. beginning of 
Jan. 1856. No. 151. On the spiny trunks of Paoobolo (Za$ithoxyluin 
macrqphyllum I lliv., Serb. W< Iw. No. 1568 I in Mata Quisucula, Bparinglj 
and with fr. scarcely mature : Feb 1855 No. 162. On the « 
of Capopa : without fr. Sept 1855 No. 162 /( . 
