306 MOSSES (Gepp). [Ectrojiothecium 



No. 152. Yellowish green, cjespitose and emitting runners : on wet 

 rocks by the rivulet Quiapoze near Caminho para Mussengue : with fr. 

 middle of June 1857. No. 153. A single specimen gathered on rocks 

 inundated by the rivulet of Capope in a mountain-wood near Sange ; 

 with scanty fr. Dec. 1854. No. 153&. On wet shaded rocks by a 

 cataract in primitive woods above Undelle, at the place called '' 

 Quibolo ; " common but not bearing much fruit, however in the larger 

 tufts young calyptras were present in July 1856. No. 154. On wet 

 muddy ground by the river Quango ; with fr. June 185(5. No. 158. 

 In company with Marcliantice. and other Hepatics in shaded places by 

 the Capopa spring : with scant fr. but good and operculate, Sept. 1856. 

 No. 175. Very widely csespitose, intensely green, growing on the wet 

 banks of rivulets ; on rocks by the rivulet of Quibolo near Sange ; 

 with fr. middle of June 1857. No. 176. Widely caBspitose, mixed 

 with Bhijnfhontef/iwn lideoiiitois, on the ground and on sandy rocks in 

 shaded rocky places, Fonte de Capopa near Sange ; with fr. March 

 ] 856. No. 180. On rocks by the Moio river on the ascent to Quilombo 

 Quiacatubia ; with fr. Jan. 1855. No. 180/'. With RJn/ncJiostegium 

 hdeoii/teiis etc. on mossy rocks of iron-sandstone in shaded places, at an 

 elevation of 2500 ft., between Undelle and the Capopa river ; with 

 scanty fr. April 185G. No. 187. With a small species of Fissideiis on 

 the ground in woods, Quilombo Quiacatubia : with fr. July 1856. 

 No. 214. With the same species of Bhi/nchofitfrihihi, widely caespitose, 

 on rotting trunks in Barranco de Capopa ; III Aug. 1857. No. 215- 



This species belongs to the subgenus Vesicxlaria, and its type-speci- 

 mens appear to be Nos. 154, 175, 176, 180. In the absence of one 

 distinct and definite type with which the numerous other specimens 

 may be compared, such minor differences as are observable in some of 

 the latter lose their value. 



4. E. chlorizans. 



Hypnum chlorizans Welw. et Duby in Geneve, Mem. See. Phys. 

 XXL ii. p. 437. t. iv. fig. 6 (1872). Microthaninium chlorizans 

 Jaeg. et Sauerb. ii. p. 491 (1878). 



GoLUNGO Alto. — Widely caespitose on the banks of rivulets in 

 well lighted primitive woods, Sobato de Bumba ; with old fr. end of 

 May 1855. No. 163. Also Quisucula. With Alga No. 178. 



A remarkable species agreeing with the subgenus Vesiciilarifi in its 

 habit, in the complanate arrangement of its diversiform leaves, but 

 distinct in the Porotrichoid areolation of the leaves. The leaves are of 

 two sorts ; those of the upper side are distichous, patulous, imbricate, 

 complanate, I'O mm. long by 0'45 mm. wide, from a narrowed base, 

 obliquely ovate (rotundate on one side, infolded on the other side), acute 

 shortly acuminate, faintly bicostate, with margins irregularly denticu- 

 late above middle and here and there revolute ; cells pachydermatous, 

 upper oval-hexagonal (0-012 by 0-006 mm.), lower longly elliptic- 

 hexagonal (0-025 by 0-005 mm.), alar impressed and difficult to distin- 

 guish but apparently three or four fugacious inflated hyaline cells 

 with a few sub-obscure quadrate cells superposed Leaves of the 

 under side variable in size (0-6 to 1 -0 mm. long by 0-25 to 0-3 mm. wide) 

 patent from a sub-oblique ovate base lanceolate longly acuminate, with 

 margins more or less recurved, cells all elonirately elliptic (0-03 by 

 0-005 mm.) sinuous with cell-walls 0-005 mm. thick. The apex of the 

 seta is curved and thickened (plicate when dry) forming a neck joined 

 obliquely to the theca. Theca usually horizontal, oval and asymme- 

 trical, becoming subcylindric with age, a little contracted below the 



