A HISTORY OF SUSSEX 



Rhodomeniace^ 



Rhodymenia Palmetta, Grev. Hastings 

 Sphasrococcus coronifolius, Ag. „ 

 Gracilaria erecta, Grev. Hastings 



Cryptonemiace^ 



Gigartina acicularis, Lam. Hastings 

 Chondrus Norvegicus, Lam. Brighton 

 Gymnogongrus Griffithsia, Mart. „ 

 Phyllophora palmettoides, J. Ag. Hastings 

 Halymenia ligulata, Ag. Hastings 

 Ginannia furcellata, Mart. „ 

 Crouania attenuata, J. Ag. „ 

 Naccaria Wiggii, Fries. Brighton 

 Gloiosiphonia capillaris, Carm. Brighton 

 Nemaleon purpureum, Harv. „ 



Dudresnaia coccinea, Bonnem. „ 



Ceramiace^ 



Ceramium botryocarpum, Grev. Hastings 



— Deslongchampsii, Cham. Eastbourne 



— diaphanum, Ag. Brighton 



— gracillimum, Grev. Hastings 



— echionotum, Ag. „ 

 Griffithsia equisetifolia, Ag. Seaford 

 ■ — barbata, Ag. Brighton 



— Devoniensis, Harv. Brighton 

 Wrangelia multifida, J. Ag. Hastings 

 Seirospora Griffithsiana, Harv. Brighton 

 Callithamnion plumula, Lyng. „ 



— cruciatum, Ag. Brighton 



— roseum, Lyng. „ 



CERAMIACEi^ {continued) — 



Callithamnion byssoideum, Arnott. Brighto, 



— Turneri, Ag. „ 



— polyspermum, Ag, „ 



— Borreri, Ag. „ 



— floridulum, Ag. „ 



— Hookeri, Ag. Eastbourne 



— thyoideum, Ag. Hastings 



CHLOROSPERMEiE 



SiPHONACEiE 



Codium bursa, Ag. Brighton 

 Bryopsis plumosa, Lam. Eastbourne 



CoNFERVACEi?: 



Cladophora rupestris, Kutz. Eastbourne 



— gracilis, Griffiths. Hastings 



— Rudolphiana, Kutz. „ 



— albida, Kutz. Shoreham 



— lanosa „ Brighton 



— glaucescens, Harv. Brighton 

 Conferva arenicola, Berk. Hastings 



— melagonium, Web. Shoreham 



— aerea, Dill. Brighton 

 Ulvace^^ 



Enteromorphe erecta, Hooker. Hastings 



Ulva linza, L. Brighton 



Bangia fusco-purpurea, Lyng. Brighton 



OsCILLATORIACEiE 



Calothrix confervicola, Ag. Brighton 

 Oscillatoria subsalsa, Ag. „ 



THE LICHENS {Lichenes) 



Among the Cryptogams the lichens are perennial plants composed 

 of cells so arranged as to form a foliaceous, woody, scaly, crustaceous or 

 leprous thallus, or fusion of root, stem and leaves into a general mass. 

 They like bright sunshine and fresh air, and die in an impure atmosphere. 

 They occur under very varied conditions, on rocks, on the chalk downs, 

 in bogs, on the bark of old trees, on old barn doors, and on the flints and 

 boulders along the coast. Although studied but by a few of our botanists, 

 Sussex has not been neglected in this respect, and although not possessing 

 a knowledge of them myself, I have accompanied rambles in search of 

 them with pleasure. Borrer, who published little under his own name, 

 in conjunction with his friend Dawson Turner, wrote An Attempt at a 

 History of the British Lichens. This had a private circulation only, 

 but in its dedication a belief was expressed that it would be a monument 

 of his industry, ability and profound knowledge of our lichens. In 

 east Sussex we have lists made by Roper and Bloomfield, from which I 

 quote, and from west Sussex one by Mr. W. C. Cooke, brother of 

 Dr. Cooke, the well-known cryptogamist. This catalogue made by him 

 for the Chichester Society I have now before me, and from this I give 

 many of the habitats of our Sussex lichens. 



The following list is arranged according to Leighton's Lichen Flora 

 of Great Britain. 



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