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 csespitose in grottoes of 

 moist rock at the foot of Serra de Pedras de Guinga ; sterile, Jan. 

 1857. No. 83. Poor specimens yellowish green, densely pulvinate, on 

 shaded ground by the great cataract of the river Cuanza near Condo ; 

 without mature fr. March 1857. No. 83. 



GoLUNGO Alto. — A moss rarely noticed, of a pleasant very green 

 colour, in company with other mosses, widely but laxly csespitose 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. POGONATUM Pal.-Beauv. Prodr. p. 39 (1805). 



1. P. angolense Jaeg. Gen. at Spec. Muse. I. p. 713 (1875). 



Polytrichum [Pogonatuvi) angolense Welw. et Duby in Genfeve, 

 Mem. Soc. Phys. XXI. i. p. 217(1871). P. (Pogonatum) huillense 

 Welw. et Duby, op. cit., tab. i., fig. 2. 



HuiLLA. — A Polytrichoid moss of gregarious growth, allied in habit 

 and characters to P. hrachyphyllum 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 Guemb. Bry. Eur. 

 IV. (1836-51). 



1. P. commune L. Sp. PI. p. 1109 (1753). 



Pungo Andongo. — Common on the higher rocks of the prsesidium 

 by the cataracts of the streams near Cabondo, but apparently very 

 seldom bearing fruit ; always without fr. Dec. 1856, Jan., Feb. and 

 April 1857. No. 49. 



HuiLLA. — A very fine moss, glaucous-green, laxly and widely 

 csespitose, commonest! of African Polytrichums ; in the rather shady 

 rocky elevated thickets of Morro de LopoUo, in company with Protese, 

 Melastomacese and UtriculariK ; without fr. Feb. 1860. No. 16. In 

 rocky places, growing with Blreria Bugonii Engl. (Herb. Welw. 

 No. 2659), by the road from Morro de Empalanca towards Nene ; 

 without fr. May 1860. No. 15. In very rugged rather moist places 

 from Morro de LopoUo towards Humpata, at an elevation of 3400 ft. ; 

 with inflorescence, end of May 1860 ; 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 

 by Cyperaoese, Eriocauloneas and Xyridese, at Empalanca and Nene ■ 

 with fr. end of April 1860. No. 17. 



2. P. elegans Welw. et Duby in Geneve, Mem. Soc. Phvs XXI 

 i. p. 217. t. ii. fig. 1 (1871). 



Pungo Andongo.— Laxly csespitose, ^ 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. 



