i88 ANNALS OF SCOTTISH NATURAL HISTORY 



Cumbrae ; Ulvci Lactuca, L., var. nana, Suhr, Arbroath ; Ulothrlx 

 implexa, Ktz., Cumbrae; U. flacca, Thur., S. Scotland; U. speciosa, 

 Ktz., Appin, Dunbar, and near Aberdeen ; Ochlochczte ferox, Huber, 

 Cumbrae ; Acrochata repens, Pringsh., Cumbrae ; Bolbocoleon pili- 

 ftrum, Pringsh., Cumbrae and Dunbar ; Blastophysa rhizopus, Rke., 

 Cumbrae ; Endoderma viride, Lagerh., Cumbrae and Arran ; E. 

 Wittrockii, Wille, Arran and Cumbrae ; E. Flustrce, Batt., S. Scot- 

 land ; Tellamia contorta, Batt., Cumbrae; T. intricata, Batt, 

 Cumbrae ; Urospora isogona, Batt., near Edinburgh, Dunbar, Elie, 

 Arbroath, Montrose, Cumbrae, Oban, etc. ; U. bangloides, Holm, 

 and Batt., Oban, Port Ballantrae, Bay of Nigg, Montrose Ness ; 

 U. collabens, Holm, and Batt., Cumbrae ; Chcetomorpha tortuosa, 

 Ktz., from numerous localities ; C. litorea, Cook, Appin, Arran, 

 Cumbrae, and Orkney ; C. linum, Ktz., Cumbrae, Oban, Orkney, 

 etc. ; C. area, Ktz., Dunbar, Cumbrae, Arran, Orkney ; C. Mela- 

 gonium, Ktz., many localities ; Rhizodonium Kochianum, Ktz., Elie 

 and Cumbrae ; R. implexum, Batt., several localities ; R. arenosum, 

 Ktz., several localities ; R. rlparium, Harv., common ; Cladophora 

 pelludda, Ktz., Cumbrae and Orkney ; C. Hntchimia, Harv., not 

 uncommon; var. distans,-Ktz., Bute; C. rectan^ularis, Harv., var. 

 horrida, Ktz., Arran ; C, Neesiorum, Ktz., var. humilis, Batt., Cum- 

 brae ; C. rupestris, Ktz., common ; C. utriculosa, Ktz., Cumbrae and 

 Loch Etive ; C. trichocoma, Ktz., Cumbrae ; C. gracllls, Ktz., and 

 C. sericea, Ktz., Cumbrae, Ardrossan, Peterhead, and Orkney, etc. ; 

 C. glaitcescens, Harv., Elie, Aberdeen, Orkney, etc. ; C. flexuosa, 

 Harv., Aberdeen, and near Montrose ; C. refrada, Aresch., Orkney ; 

 C. albida, Ktz., and var. refracta, Thur., various localities ; C. 

 Balliana, Harv., Firth of Clyde ; C. Rudolphiana, Harv., Cumbrae; 

 C. fracta, Ktz., var. marina, Hauck, common ; C. arcta, Ktz., not 

 uncommon ; var. vcMcherieefonms, Harv., Dunbar ; var. radians, 

 Batt., Orkney ; var. cent rails, Harv., Orkney ; C. Traillii, Batt., 

 Joppa, near Edinburgh ; C. Sonderi, Ktz., Orkney ; C. arctiuscula, 

 Ktz., Dunbar, Joppa, Arbroath ; C, stolonifera, Batt, Cumbrae ; 



C. pallida, Batt., Cumbrae ; C. unrialis, Ktz., Dunbar, Elie, Lismore, 

 Orkney ; C. bombycina, Batt., Bute and Orkney ; C. lanosa, Ktz., 

 various localities ; var. Zosterce (Dillw.), Forres ; Gomontia polyrhiza, 

 Born, and Flah., Dunbar and Cumbrae ; Ostreobium Qnekettii, Born, 

 and Fiah., Firth of Clyde ; Halicystis avails, Aresch., Firth of Clyde ; 

 Bryopsis hypnoides, Lamour., Appin, Ayrshire, etc. ; B. phnnosa, Ag., 

 not uncommon ; Derbesla tenuissima, Crn., Appin ; Vancheria dicho- 

 toma, Appin ; V. Thuretii, Woron., Firth of Clyde and Appin ; V. 

 sphcerospora, Nordst., Appin ; f. dioica, Rosenv., not uncommon ; 

 V. coronata, Nordst, Arbroath ; V. litorea, Bang and Ag., Inverness ; 

 Codium tomentosum, Stackh., Cumbrae, Peterhead, Orkney. 



FUCOIDE^.- -Desmarestia riridis, Lamour., not uncommon ; 



D. aculeata, Lamour., common ; D. ligulata, Lamour., Firth of 



