REPORT ON THE BOTANY OF THE ATLANTIC ISLANDS. 25 



L I C H E N E S. 



LICHENACCI. 



Lecanorei. 

 Lecanora recubans, Stirton. 



Lecanora recubans, Stirton, n. sp. 



Tkallus (K. fl., C. fl.) albidus vel pallide cinereus, crassiusculus, rimoso-areolatus, albo 

 deterrninatus ; apothecia minuta, innata, concoloria, concava, marginata ; sporse 8-nae, 

 simplices, incolores, ellipsoidese, longit. - 009-0 - 012 millim., crassit. - 006-0"007 millim., 

 uon rite evolutse ; parapbyses uon bene distinctae, apicibus citrinis glanduloso-inspersis ; 

 bypotbecium incolor. Gelatina hymenialis iodo dilute cserulescens, dein pallide fulvescens. 

 — Journ. Linn. Soc. Lond., xiv. p. 375. 



Fernando-Noronha. — On rocks — Moseley. 



This species is allied to Lecanora bella, Acbar., fide Crombie in Journ. Linn. Soc. 

 Lond., xvi. p. 219. 



ALG51. 



Excluding three or four, mostly cosmopolites, and the smaller species from the rock- 

 pools, the algae of Fernando-Noronha are chiefly related to those of the Mexican Gulf. 



MELANOSPEKME^E. 

 FlJCACE.E. 



Sargassum vulgare, K. A. Agardh. 



Sargassum. vulgare, K. A Agardh, Sp. Alg., i. p. 3 ; Dickie in Journ. Linn. Soc. Lond., xiv. p. 363. 



Fernando-Noronha. Moseley. 



Tropical and Subtropical Atlantic ; Manilla; Mauritius. 



The specimens much smaller than usual. 



Dictyotace^e. 

 Haliseris plagiogramma, Mont. 



Haliseris plagiogramma, Mont., Cuba, p. 63, t. 3, fig. 3 ; Dickie in Journ. Linn. Soc. Lond., xiv. p. 363. 



Fernando-Noronha. Moseley. 

 Cuba ; Brazil ; Sandwich Islands. 



Haliseris delicatula, K. A. Agardh. 



Haliseris delicatula, K. A. Agardh, Sp. Alg., i. p. 144 ; Harv., Nereis Bor.-Am., L p. 103 ; Kiitz., Sp. 

 Alg., p. 562 ; Dickie in Journ. Linn. Soc. Lond., xiv. p. 363. 



Fernando-Noronha. Moseley. 



Florida ; West Indies ; Brazil. 



(bot. chall. exp. — PART 11. — 1884.) B 4 



