394 BOTANY OF SOCOTRA. 



PHYCOMYCETES. 



By Dr M. C. COOKE. 



SPOKIDESMIUM. 



Sporidesmium, Link (1809) Berl. Mag. iii. p. 41. 



About fifty species in temperate and subtropical countries. 



S. maculans, Beitr. and Curt., Cuban Fungi, No. 578. 



Socotra. On naked wood. B.C.S. nn. 1313, 1318. 

 Distrib. Cuba. 



ALG/E. 



The late Dr G. Dickie kindly determined the species of Algae we brought 

 from Socotra which are enumerated here. 



RHODOPHYCE^E. 



I. CEKAMIACE^. 



CERAMIUM. 



Ceramium, Adans. Fam. ii. 13 (pro parte); Ktz. Tab. Phyc. xiii, tt. 4-16; J. G. Ag. Sp. Alg. 

 ii. 113, and iii. 91. 



A considerable genus with species in all seas. 



C. tenuissimum, Syngb. Hydr. Dan. 120, t. 37, B. 4; J. G. Ag. Sp. Alg. 

 ii. 120 and iii. 94. 



C. nodosum,, Griff, and Harv. in Harv. Phyc. Brit. t. 90. 



Socotra. 



Distrib. Atlantic Shores and Mediterranean ; also Tasmania. 



C. subtile, J. G. Ag. Sp. Alg. ii. 120 and iii. 94. 



Socotra. 



Distrib. Gulf of Mexico, Barbadoes. 



