Eateromoi-phal iv. ulvacb^ (West). 333 



IV. ULVACEiE. 



1. ENTEROMORPHA Link (1820); em. J. Ag. (1883). 



1. E, Welwitschii J. Ag. Till Algernes Systemat. vi. 143 (1883) ; 

 W. et G. S. West in Journ. Bot. 1897, p. 6. 



Enteromorpha sp. Welw. Phyc. Lusit. n. 289. 



LoAXDA. — Ad folia palmarum (Cncos nucif.) diutius in oceano agitata, 

 props Praia de Nazareth ; Feb. 1854. No. 29. 



The occurrence of this species is noteworthy, as Welwitsch had 

 previously collected it in Portugal on Scirpus maritimus. 



2. E. tubulosa Kiitz. Tab. Phyc. vi. 32, f . 2 ; W. et G. S. West 

 in Journ. Bot. 1897, p. 7. 



LoANDA. — On a floating Adamonia digitata on the shore (Praia, of 

 S. Jago), forming a green layer all over it ; Nov. 1853. No. 31- 



V. ULOTRICHACE^. 



1. HORMISCIA Pries (1835); em. Aresch. (1866). 



1. H. subtiUs De Toni, Syll. Alg. 159, 160 (1889) , W. et G. S. 

 West in Journ. Bot. 1897, p. 33. 



Ulothrix suhtilis Kiitz. Phyc. German. 197 ; Kabenh. Plor. 

 Europ. Algar. iii. 365. 



HuiLLA. — Prequens in pascuis pluv. autumnalibus frequentius 

 inundatis, demum exsiccantibus ad lacum magnum de Ivantala, inter 

 Porphyrosiphonem Notaridi ; March 1860. No. 18. 



PuNGO Andongo. — In pascuis spongiosis breve graminosis juxta 

 rupes gig. Prsesidii pr. filatete ; May 1857. No. 111. 



Var. variabilis Kirchn. in Cohn, Kryptog. -Flora von Schles. 77 

 .(1878) ; W. et G. S. West, l.o. . 



Ulothrix variabilis Kiitz. Species Algar. 346 ; Rabenh., l.o. 



PuNGO Andongo. — Preq. temp. pluv. in summis rupib. Prsesidii ; 

 Feb. 1857. No. 6. 



2. STIGEOCLONIUM Kutz (1843). 



1. Stigeoelonii ? sp. W. et G. S. West, I.e. 



HuiLLA. — Fragments amongst Gonatonema tropicum, etc., Morro de 

 LopoUo ; Feb. 1860. Nos. 172 and 186. 



3. PSEPHOTAXUS W. et G. S. West in Journ. Bot. 1897, p. 33. 

 1. P. lamellosus W. et G. S. West, l.o. 



PuNGO Andongo. — Alga epiphytica in Dichotriche gypsophila (inter 

 -Soytonema Myochrous var. chorographicum et CEdogoniwm tapeinosporiim 

 var. angohnse) adlatera boreal, et ocoid. de Pedra Songue ; April 1857. 

 No. 12. 



HuiLT.A. — In Schizniriche natante in graminosis paludosis juxta 

 rivulum de Lopollo : April 1860. No. 180. 



This is a most remarkable confervaoeous alga, more especially on 

 account of its short filaments of irregular cells with thick lameUose 

 walls ; the filaments are enclosed in an irregular mucus which seems 

 ^to be formed from the outer lamellae of the cells. One method of 



