REPOKT ON THE BOTANY OF THE ATLANTIC ISLANDS. 47 



Physcia pulverulenta j Fr. 



Physcia pulverulcnta, Fr., Lich. Europ., p. 79, ex Nyl., Synop. Lich., i. p. 419. 



Parmelia pulverulent a, Acharius, Lich. Univ., p. 473, et Synop., p. 214; A. Rich., Sertum Astrolab., 

 p. 51. 



Ascension. Lesson. 



Included on the authority of Richard, though Ny lander gives the distribution as 

 Europe, North Africa, and North America. 



Physcia flavicans, DC. 



Physcia flavicans, DO, Fl. Franc, vi. p. 189 ; Nyl., Synop. Lich., i. p. 406 ; Crombie in Journ. Linn. 



Soc. Lond., xx p. 83. 

 Borrera flavicans, Acharius, Lich. Univ., p. 504 ; Bory in Duperr. Voy. "Coquille," Bot. Crypt., p. 238. 



Ascension. — On rocks, &c. — Lesson ; Hooker ; Moseley. 

 Widely spread. 



Physcia adscensionis, Crombie. 



Physcia adscensionis, Crombie in Journ. Linn. Soc. Lond., xvi. p. 212. 

 Lecanora adscensionis, Acharius, Lich. Univ., p. 422, Synop. Lich., p. 179. 



Ascension. 



Mr Crombie enumerates this among the Lichens collected in the Cape Verde Islands by 

 Mr Moseley. 



In Kew Herbarium is a Physcia, probably Physcia astroidea, Fries, collected in 

 Ascension by Dr C. Collingwood. 



FUNGI. 

 We are not aware that a single species of this family has been collected in the island. 



ALG.53. 



MELANOSPERME^. 

 FuCACE^E. 



Sargassum lendigerum, K. A. Agardh. 



Sargassum lendigerum, K. A. Agardh, Sp. Alg. i. p. 9 ; J. G. Agardh, Sp. Alg., i. p. 340 ; Bory in 



' Duperr. Voy. "Coquille," Bot. Crypt., p. 125. 

 Fucus lendigerus, Linn., Sp. PL, ed. 1, p. 1160; Turner, Hist. Fuc, t. 48. 



Ascension. — Maritime rocks — Hooker. 



Also collected by Durville, and the species was founded by Linnseus on a specimen 

 collected at Ascension by Osbeck. 



Shores of the Atlantic, and on the Pacific coast of South America. 



