A HISTORY OF CORNWALL 



Crouania attenuata, J. Ag. Devon, Channel 



Islands 

 Desmarestia Dresnayi, Lamour. Devon, 



Ireland 



Ectocarpus Stilophorae, Crn. Dorset 

 Erythropeltis discigera, Schm. Kent 

 ciliaris, Batt. Scotland 

 Gelidium sesquipedale, Thur. Devon 

 Griffithsia Devoniensis, Haw. 

 Haematocelis rubens, J. Ag. Northumber- 

 land 



Helminthocladia Hudsoni, J. Ag. Devon 

 Nitophyllum literatum, J. Ag. Devon 



Monostroma crepidinum, Farl. Sussex 



orbiculatum, Thur. Dorset 

 Peyssonelia atropurpurea, Crn. Channel 



Islands 



Harveyana, Crn. Devon 



Rosenvingii, Schm. Devon, Dorset, 



Northumberland 

 Polysiphonia ceramiiformis, Crn. Dorset 



foetidissima, Cocks. Devon, Sussex 



Rhunensis, Thur. Devon 

 Rhodophysema Georgii, Batt. Devon 

 Stenogramme interrupta, Mont. Devon, 



Ireland 



CYANOPHYCE^E 



CHAM./ESIPHONACE.S: 



Dermocarpa prasina, Born. Padstow 



OSCILLATORIACEJE 



Oscillatoria margaritifera, Ktttz. Saltash 

 Phormidium papyraceum, Gom. Saltash, 

 Penzance 



autumnale, Gom. Padstow, Falmouth, 



Penzance 



Lyngbya majuscula, Harv. Marazlon 

 Symploca hydnoides, Ktitz. Saltash, Fowey, 



Padstow, Penzance 

 Microcoleus chthonoplastes, Thur. Looe 



RIVULARIACE.S 



Calothrix parasitica, Thur. Forth Cressa, 

 Sally Isles 



seruginea, Thur. Padstow 

 Rivularia Biasolettiana, Menegh. Wade- 

 bridge, Padstow, Falmouth, Penzance 



nitida, C. Ag. Saltash, Padstow, Hayle, 



Marazlon 



bullata, Berk. Looe, Fowey, St. Minver, 



Marazlon 

 NOSTOCACE;E 



Anabaena variabilis, Ktttz. Hayle, Penzance 



torulosa, Lagenh. Penzance 



CHLOROPHYCE.& 



ULVACE.S: 



Monostroma laceratum, Thur. Wade- 

 bridge, Lostwithiel, H. 15 



*crepidinum, Farl. Falmouth 



Wittrockii, Born. Saltash, Fowey 



Grevillei, With. Falmouth 



*orbiculatum, Thur. Falmouth 

 Enteromorpha clathrata, J. Ag. Cawsand, 



Falmouth, Penzance 



Linkiana, Grev. Padstow, Fowey, Looe 



prostrata, Le Jol. Looe, Falmouth 



Hopkirkii, Mac Calla. Looe 



Linza, J. Ag. Looe, Penzance 



erecta, J. Ag. Whitsand Bay, Fowey, 



Falmouth 



torta, Reinb. Wadebrldge 



ULVACE/E (continued') 



Enteromorpha ramulosa, Harv. Falmtuth ; 



St. Martin's, Scllly Isles 

 var. tenuis, Hauck. Scilly Isles 



*usneoides, J. Ag. St. Martin s, Scllly 



Isles 

 Ulva lactuca, Linn. Falmouth (rare) 



myriotrema, Born. 

 ULOTHRICHACE^E 



Ulothrix *speciosa, Kotz. Mount's Bay 



implexa, Kiitz. Looe 

 CHJETOPHORACEJE 



Tellamia *contorta, Batt. Padstow, Fal- 

 mouth 



*intricata, Batt. Padstow, Falmouth 

 CLADOPHORACE.S 



Urospora isogona, Batt. Par, Penzance 

 Chaetomorpha tortuosa, Kutz. Looe, Fowey, 

 Falmouth, Mount's Bay 



sutoria, Berk. Penzance 



Melagonium, Kutz. St. M Inver, New- 



quay, Lizard, Mount's Bay ; Tresco, 

 Scllly Isles 



Rhizoclonium implexum, Batt. Mount 

 Edgcumbe, Penzance 



arenosum, Ktttz. Talland Bay 



arenicola, Reinb. Marazlon 



var. Casparyi, Holm. & Batt. Pad- 

 stow, Falmouth, Penzance 

 Cladophora pellucida, Ktttz. Looe, Fowey, 

 Falmouth, Penzance 



Hutchinsiae, Harv. Fowey, Falmouth, 



Scilly Isles 



diffusa, Holm. & Batt. Falmouth 



*rectangularis, Harv. Whitsand Bay, 



Scllly Isles 



hirta, Ktttz. Looe, Fowey, Falmouth, 



Penzance, Land's End 



utriculosa, Kutz. Scllly Isles 



*trichocoma, Kutz. Falmouth 



gracilis, Ktltz. Looe, Falmouth, Penzance 



sericea, Ktttz. Looe, Padstow, Fowey, 



Falmouth, Penzance 



*glaucescens, Harv. Looe,- Falmouth, 



Penzance 



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