Enter omorpha\ iv. ulvace^ (West). 333 



IV. ULVACEJE. 



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



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

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



Enterotnorpha sp. Welw. Phyc. Lusit. n. 289. 



L(1ANDA. — Ad folia palmarum (Cocos nuclf.) diutius in oceano agitata, 

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



The occurrence of this species is noteworthy, as Welwitsch had 

 previously collected it in Portugal on Scirjms maritiinus. 



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 Adansonia digitata on the shore (Praia, of 

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



V. ULOTRICHACE^. 



1. HORMISCIA Fries (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 ; Rabenh. Flor. 

 Europ. Algar. iii. 365. 



HuiLLA. — Frequens in pascuis pluv. autumnalibus frequentias 

 inundatis, dtmum exsiccautibus ad lacum magnum de Ivantala, inter 

 Porphyrosiphmiem Notarisii ; March 1860. No. 18- 



PuNGO Andongu. — In pascuis spongiosis breve graminosis juxta 

 rupes gig. Prtesidii pr. ©atete ; May 1857. No. 111. 



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

 (1878); W. etG. S. West, I.e.. 



Ulothrix variabilis Kiitz. Species Algar. 346 ; Rabenh., I.e. 



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

 Feb. 1857. No. 6. 



2. STIGEOCLONIUM Kutz (1843). 



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



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

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



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

 1. P. lamellosus W. et G. S. West, I.e. 



Pungo Andongo. — Alga epiphytica in Dichotriche gt/psophila (inter 

 Scytonema Myochrous var. chorograp)hicuin et (Edogonium tapeinosporum 

 var. angolenae) ad latera boreal, et occid. de Pedra Songue ; April 1857. 

 No. 12. 



HuiLiiA. — In Schizntriche natante in graminosis paludosis juxta 

 rivulum de Lopollo : April 1860. No. 180. 



This is a most remarkable confervaceoiis alga, more especially on 

 account of its short filaments of irregular cells with thick lamellose 

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

 ■to be formed from the outer lamelte of the cells. One method of 



