306 mosses (Gepp). [Ectropotheciu/m 
No. 152. Yellowish green, csuspitose 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 '' O 
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 Cuango ; with fr. June 185(5. No. 158. 
In company with Man-ltai/t/ce and other Hepatics in shaded places by 
the Capopa spring : with scant fr. but good and operculate, Sept. 1856. 
No. 175. Very widely caespitose, 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 crespitose, mixed 
with Rhynchostegium luteonitens, on the ground and on sandy rocks in 
shaded rocky places, Fonte de Capopa near Sange ; with fr. March 
1856. No. 180. On rocks by the Moio river on the ascent to Quilombo 
Quiacatubia; with fr. Jan. 1855. No. 180/'. With Rhynchostegium 
hiteoiiitens 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 1856. No. 187. With a small species of Fissidens on 
the ground in woods, Quilombo Quiacatubia : with fr. July 1856. 
No. 214. With the same species of Rhynchostegium, -widely caespitose, 
on rotting trunks in Barranco de Capopa ; 1!) Aug. 1857. No. 215- 
This species belongs to the subgenus Vesicularia, 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. Soc. Phy.s. 
XXI. ii. p. 437. t. iv. fig. 6 (1872). Microthamnium chlorizans 
Jaeg. et Sauerb. ii. p. 491 (1878). 
Goluxgo 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 Vesicularia 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, ID mm. long by - 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 - 3 mm. wide) 
patent from a sub-oblique ovate base lanceolate longly acuminate, with 
margins more or less recurved, cells all elonyately elliptic (0 - 03 by 
- 005 mm.) sinuous with cell- walls - fl05 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 
