288 mosses (Gepp). [Bryum 
an elevation of 3000 to 3200 ft. ; sterile, Sept. 1856 ; but later on 
utterly destroyed at the cleaning of the spring soon after Welwitsch's 
arrival in Pungo Andongo. No. 65. Widely caespitose in grottoes of 
moist rock at the foot of Serra de Pedras de Guinga ; sterile, Jan. 
1857. No. 82- Poor specimens yellowish green, densely pulvinate, on 
shaded ground by the great cataract of the river Cuanza near Condo : 
without mature fr. March 1X57. No. 83. 
G-OLUNGO Alto. — A moss rarely noticed, of a pleasant very green 
colour, in company with other mosses, widely but laxly caespitose in 
shortly grassy places on the banks of the Moio (Miiia) stream, to the 
right as one ascends to Quilombo-Quiacatubia : with female inflores- 
cence 16 July 1856. No. 181. 
MOSSAMEDES. — The only species of moss observed by Welwitsch in 
the littoral region between 14° and 16° S. lat.; on the muddy-sandy 
banks of the nearly dried up river Bero or Rio das Mortes at sea level 
near Cavalheiros ; in small quantity and without fr. June 1859. No. 1. 
18. P0G0NATUM Pal.-Beauv. Prodr. p. 39 (1805). 
1. P. angolense Jaeg. Gen. et Spec. Muse. I. p. 713 (1875). 
Polytrichum {Pogonatum) angolense Welw. et Duby in Geneve, 
Mem. Soc. Phys. XXI. i. p. 217(1871). P. (Pogonatum) huilleiise 
Welw. et Duby, op. cit., tab. i., fig. 2. 
Huilla. — A Polytrichoid moss of gregarious growth, allied in habit 
and characters to P. brachyphyllum Pal.-Beauv. and various European 
species ; very rare, seen by Welwitsch in only one place, in elevated 
shortly bushy pastures in the plateau de Empalanca ; with fr. April 
1860. No. 18. 
19. POLYTRICHUM Dill.; Br., Sch. et Guernb. Bry. Eur. 
IV. (1836-51). 
1. P. commune L. Sp. PI. p. 1109 (1753). 
Pungo Andongo. — Common on the higher rocks of the presidium 
by the cataracts of the streams near Cabondo, but apparently very 
seldom bearing fruit ; alwavs without fr. Dec. 1856, Jan., Feb. and 
April 1857. No. 49. 
Huilla. — A very fine moss, glaucous-green, laxly and widely 
caespitose, commonest of African Polytrichums ; in the rather shady 
rocky elevated thickets of Morro de Lopollo, in company with Protese, 
Melastomaceae and Utriculariai : without fr. Feb. 1860. No. 16. In 
rocky places, growing with Blreria Bugonii Engl. (Herb. Welw. 
No. 2559), by the road from Morro de Empalanca towards Nene ; 
without fr. May 1860. No. 15- In very rugged rather moist places 
from Morro de Lopollo towards Humpata, at an elevation of ;1400 ft. ; 
with inflorescence, end of May 1H60 ; and at an elevation of 5500 ft., 
at Morro de Lopollo ; with inflorescence March 1860. No. 14. In 
elevated pastures, flooded during the rainy season, and chiefly occupied 
bv Cyperacese, Eriocauloneae and Xyrideae, at Empalanca and Nene ; 
with fr. end of April 1860. No. 17. 
2. P. elegans Welw. et Duby in Geneve, Mem. Soc. Phys. XXI. 
i. p. 217. t. ii. fig. 1 (1871). 
Pungo Andongo.— Laxly caespitose, \ to 1 ft. high, usually in com- 
pany with and mixed with other mosses ; common on rocks and in 
bushy places behind Mata do Pungo ; without fr. from Oct. 1856 to 
May 1857. No. 50. 
