Mioroapora ] \. plotbh b lob b (W( 
becoming ut this p< nod i '■ or less irregular, and the cell-septa alio 
growing very greatly in thickness by the addition of lamellee i 
side. The filaments 'I" nol :i f « ] •* n i- to break ap in the manner of 
other Bpeoies of \ficrotpora and Conferva. 
5. M. fontinalis De Toni, Syll. Alg. 230 (1899)j W. el Q s. 
West in Journ. Bot. L897, p. 34. 
Conferva fontinalis Berk. Glean, t. xiv. fig. I. A variety agre 
ing with var. ochraoea Zanard. in the relative length of it- cells, 
luit occurring in dark green ma 
Loan da. [n aquia puris Btagnantibna Bubsalsia urbb I. 
Jnne 1858. No. 198 Also drawn ap from the bottom of thi 
Welwitach's house in Loanda, :i well which hardly receives the light 
of day through a narrow slit m the rover ; April 1859. No. 145. 
VI. CHR00LEPIDACEJ2. 
I. TRENTEPOHLIA Mart. (1817). 
1. T. lagenifera Wille, in Pringsh. Jahrb. xviii. 127 (1887); 
W. e1 G. s. West in Journ. Bot. 1897, p. 35. 
Chroolepus lageniferwm Bildebr. in Bot. Zeit. 85, t. iii. (1861 i. 
GOLUNGO A.LTO —Inter Scytonema insigm ;i<l rupes rivnl. Coango 
humect.: June L856. No. 140. 
2. T. phyllophila \V. et G. 8. Wesl in Journ. Bot. 1897, p. 35. 
Goltjngo Amo. Ad folia plantaa acaulia monocotyl. | 
monostachya linker confer Berb. Welw. No. 3747]) in Afata de 
Quisucula, prope Hango : .July I*."i7. N'o. 148. 
The green contents entirely till the cells when li\iiiL r , hut when 
dry they contract into a double-cone-shaped or dumb-bell-shaped 
mass in each cell. The brarches rarely bear branchlets, except 
very short ones consisting of one or two cells. The Bpecies which 
most nearly approaches it is /'. tenuis (Zell.) I>e Toni, from which 
it differs in its green colour, in its rather smaller size, in the equal 
thickness of its primary filaments and branches, and in its obovate 
zoogonidangia. 
Forma subnana, fuscescens, cellulis paullo tumidia ; crasa til. 
5-6 fi. (/...i. 
Goli mgo A i ro. -Ad muscorum Burculoa (Calyptothecium] in rupi- 
bus juxta rivulos de Zengas do Queta ; duly 1856. No. 143. 
VII. CLADOPHORACE.E. 
1. RHIZOCLONIUM Kiitz. (1843). 
1. R. crassipellitum W. el G. 8. Wesl in Journ. Bot. 1897, 
p. 35. 
Loanda. — Tn terra bnmida ambroea locia cuius; with onltivated 
plants m earl hen ware pots lem rasoa de harrai at Museque Lopes in 
tl,e island of Loanda, Aug. 1858. No 205. 
Tins Bpecies ia characterised by it- terrestrial habit, it- very t hi-k 
cell-walls, and the absence of rhi/.oids. 
