Enteromorpha] iv. i lvai b b (We t). 33d 
IV. QLVAI K.i:. 
1. ENTEEOMOEPHA Link (1820) \ em. J. Ag. (11 
1. E. Welwitschii J. Ag. Till Algernes Systemat. vi. 143 
W. et <;. s. Wesl in Journ. Bot. L897, p. 6. 
Enteromorpha sp. Welw. Phyc. Lusit. d. 289. 
Loanda. Ad folia palmarum(( 'ocos nucif. ) diutius in oceano agil ita, 
ppope Praia de Nazareth ; Feb L854. No. 29. 
Tin' occiirrL-ncc of tins spivics is noteworthy, as Welwitsch had 
previously collected it in Portugal on Scirpus maritimuu. 
2. E. tubulosa ECtitz. Tab. Phyc. vi. 32, t. 2; W. el G. B. Weel 
in Journ. Bot. L897, p. 7. 
Loanda. On a floating Adamonia digitata on the shore i Praia, of 
s. Jago), forming a green layer all over it ; Nov. L8 i3. No. 31. 
V. [JLOTRICHACEiE. 
1. HORMISCIA Fries (1835) j em. Aresch. (1866). 
1. H.subtilis DeToni, Syll. Alg. 159, 160 (1889) ; W. e G - 
Wesi in Journ. Bot. L897, p. 33. 
Ulothrix subtilis Kiit/. Phyc. German. L97 ; Elabenh. Flor. 
Europ. Algar. iii. 365. 
Builla. Frequena in pascuia pluv. autumnalibus frequentius 
inundatis, demum exsiccantibus ad iacum magnum de [vantala, inter 
Porphyros/p/miii'iii Xnim-isii : March lsijii \,,. 18 
Pungo Andongo.- In pascuis spongiosis breve graminosis juxta 
rupes gig. Prsesidii pr. ©atete ; May L857 No. 111. 
Var. variabilis Kirchn. in Cohn, Kryptog. -Flora von Schles. 77 
I L878); W. el G. S. West, I.e.. 
Ulothrix variabilis Kiit/.. Species Algar. 346 ; Elabenh., I.e. 
PuNGO ANDONGO. — Freq. temp. pluv. in suiuniis rupib. Prsesidii; 
Feb. 1857. No. 6. 
2. STIGE0CL0NIUM Kiit/. (1843). 
1. Stigeoclonii ? sp. W. el G. S. West, I.e. 
Hriu.A - Fragments amongsl Gonatonema tropicum, etc., Morro de 
Lopollo : Feb. 1860. Nos. 172 and 186. 
3. PSEPHOTAXUSW.rt G.S.WesI inJourn.Bot. L897, n 33 
1. P. lamellosus W. el G. S. West, I.e. 
l'i ngo Andongo. Alga epiphytica in Dichotriche gypsophila (inter 
Scytoru mi/ Myochrous var. chorographi 
var. angohwe) adlatera boreal, el ocoid. de Pedra Songue ; April \>'.>~, 
No. 12. 
Id ii.! \. Iii Schizntricht natantt in graminosis paludosis juxta 
riviilinn de Lopollo : April I860. No. 180. 
This is a most remarkable confervaceous alga, i illy on 
account of its shorl filaments of irregular ■••■lis with thiofc Lamelloat 
walls; the filaments are enclosed in an irregular mucus which seems 
to be formed from the outer lamellae of the cells. One method "t 
