THE MARINE ALG^ OF GUERNSEY 5 



C.T. N. LiNCKTA Born, & Flah. {Monormia intricata Berk.). Among 

 O. margaritifera. 

 Anab^na torulosa Lagerli. {SjihcBrozyga Garmichcelii Harv.). 

 [N.W. 4.] On Clado])liora, etc. 



CHLOROSPERME.E. 



Protococcin^. 

 C.I. CoDioLUM Petrocelidis Kuck. In Petrocelis cruenta, 



CONFERYOIDE.!;. 



C.I. GrATELLA POLYRHIZA Rosenv. {ScJiizogouium disciferum H. & 



B.). Pulias pool. 

 G. Pringsheimia scutata Rke. On Cli(Etomorplia sp. Pulias 



pool. 

 G. Enteromorpha clathrata J. Ag. [Pulias pool.] N.W. 3, 

 4, 7. E. 2. On Rlio. palmata, etc. — var. gracilis (Le JoL). 

 [M.] Indicated by Batters. 



The Guernsey specimens of Enteromorplia have been named 

 on broad lines and in a general sense. 



It is interesting to observe how the germinating spore- 

 lings of E. clathrata grow into flat expansions one cell in 

 thickness, over the surface of stones, before sending up erect 

 fdaraents. The latter begin as little pimple-like elevations 

 which appear here and there over the procumbent portions. 

 A circle of cells elongates and arches over at the top ; they 

 increase in size and divide, mitil a tube of indefinite length 

 is formed — its base, as is characteristic of this genus, being 

 additionally strengthened by the downward prolongations of 

 the cells composing the lower part of the tube. This ten- 

 dency to become procumbent in the initial stages, is common to 

 various algae; it has been referred to by Yendo (Proc. R. 

 Dublin Soc. ii. 105) and in my notes on "Developmental 

 Porms of Marine Algae " {JS'ew Phytologist, xvii. 231). 

 E. TORT A Reinb. (percursa Harv.). [Pulias pool.] 

 G. E. prolifera J. Ag. (=U. compressa var. prolifera Grrev.). 

 Pulias pool. 

 E. RAMULOSA Hook. var. rohusta Hauck. [E. 2.] Var. tenuis 



Hauck. N.W. 7. W. 7. 

 E. COMPRESSA Grrev. c. On Fiicus serratus and on stones. 

 E. iNTESTiNALis Link. c. 

 E. LiNZA J. Ag. c. 



Ulya lactuca var. latissima DC. {U. latissima J. Ag.) 

 v.c. 

 C.I. Ph^ophila dendrotdes Batt. {Ocldoclicete dendroides Crn. 

 and FhcBophila floridearum Hauck.) On Stilophora rhi- 

 zoides and Cer. echinotum. 

 G. BoLBOCOLEON PILIFERUM Pringsh. On Cer. echinotum. 

 G. Endoderma yiride Lagerh. In Foly. macrocarpa and Calli- 

 th amnion spp. 



