18 MARINE ALGAE. 



0. margaritifera, Kutz. = O. insignis, Tkw. F, Hunterstori, Cumbrae 8. 



O. nigroyiridis, Thw.Y, Millport 1. 



0. corallinae, Gam. F, Hunterston 1. 



Phormidium Ectocarpi, Gom. F, Cumbrae 3. 



P. papyraceum, Gom. F, Cumbrae 20. 



P. ambiguum, Gom. F, Cumbrae 4. 



Lyngbya aestuarii, Liebm. EF, Brodick 1, Cumbrae 2. 



L. majuscula, Harv. FK, Hunterston 1, Girvan 2. 



L. Rivulariarum, Gom. F, Cumbrae 4. 



L. lutea, Gom. F, Cumbrae 5. 



Plectonema Nostocorum, Born.F, Cumbrae 2. 



P. terebrans, Born, et Flak. F, Cumbrae 5. 



Symploca hydnoides, Kiitz. 



f. genuina, Gom. S. Harveyi Le Jol., Arran 1. 



f. fasciculata, Gom. F, Cumbrae 1. 

 Schizothrix vaginata, Gom. F, Cumbrae 3. 

 Hydrocoleum lyngbyaceum, Kutz. 



var. rupestris, Kutz. E, Bute 7, Fintry Bay, Cumbrae 20. 

 Microcoleus chthonoplastes, Thur. 'EF, Cumbrae, Gourock, Largs, Hunter- 

 ston, Wemyss Bay, Brodick, Invercloy 1. 



HETEROCYSTEAE. 



Calotllrix confervicola, C. Ag. EF, Cumbrae 2, Arran, Ardrossan 1. 

 C. SCOpulorum, C. Ag. E F, Holy Isle 8, Cumbrae 2. 

 C. pulvinata, C. Ag. F, Cumbrae 2. 

 C. fasciculata, C. Ag. F, Cumbrae 1 & 2. 

 Eivularia Biasolettiana, Menegh. E, Arran. 

 E. atra, Roth. EF, Corriegills 8, Ardrossan 1, Cumbrae 2. 

 R. nitida, C. Ag. F, Cumbrae, Hunterston Point, Gourock, etc., etc., 1. 

 Mastigocoleus testamm, Lagerh. E F, Fintry, Lamlash, Saltcoats to 

 Fairlie 26. 



NOSTOCACEAE. 



Nostoc Linckia, Born. F, Largs 8, Cumbrae 2. 



N. entophytum, Born, et Flak. F, Cumbrae 3. 



Anabaena variabilis, Kutz. F, Cumbrae 1. 



Nodularia spumigena, Mert. B. litorea, Born, et Flak. F, Cumbrae 1. 



B. CHLOROPHYCEAE. 



PROTOCOCCACEAE. 



Chlorochytrium inclusum, Kjellm. F, Cumbrae, Kilcreggan 20. 

 C. dermatocolax, Rice. BF, Gareloch, Cumbrae 20. 

 Codiolum Petrocelidis, Kuck. F, Cumbrae 4. 



BLASTOSPORACEAE. 



Prasiola stipitata, Suhr. BF, Loch Goil, Dunoon 1, Cumbrae 2, Gare- 

 loch 20. 



ULVACEAE. 



Protoderma marinum, Rke. F, Cumbrae 20. 



Ulyella lens, Crn.E F, Kames, Little Cumbrae 20. 



Pringsheimia scutata, Rke.F, Cumbrae 2, Ardrossan 1 & 20. 



Monostroma Blyttii, Wittr. E F, Kames 1, Cumbrae 20. 



M. fuscum, Wittr. E F, Fintry 1, Cumbrae 20. 



M. Grevillii, J. Ag. (Ulva lactucae, Phyc. Brit.} EFK, Arran 1, Bute 9, 

 Ardrossan, Portincross 1, Cumbrae 2, Gourock, etc., Saltcoats 1, Ayr- 

 heads 1. 



