234 THE VOYAGE OF H.M.S. CHALLENGER. 



Peltigera polydactyla, Acharius, forma, hymenma, Cromb. 



Peltigera polydactyla, Acliarius, forma hymenina; Cromb. in Journ. Linn. Soc. Loud., xv. p. 183, et 



in Phil. Trans. Roy. Soc. Lond., clxviii. p. 48. 

 l'eltigera polydactyla, Hook. f. et Tayl., El. Antarct., p. 524. 

 Feltigera horizontals, Acharius; Hook. f. et Tayl., El. Antarct., p. 525. 



Kerguelen Island. 



Pannaria dichroa, Cromb. 



Pannaria dichroa, Cromb. in Journ. Linn. Soc. Lond., xvi. p. 220, in Journ. Lot., 1877, p. 106, et 



in Phil. Trans. Roy. Soc. Lond., clxviii. p. 48. 

 Lecanora dichroa, Hook. f. ct Tayl. in Lond. Journ. Bot., 1844, p. 643. 

 P armelia taylori, Tuckerm. in Lull. Torr. Bot. Club, October 1875, et in Bull. U.S. Nat. Mils., 



iii. p. 28. 

 Parmelia placodiopsis, NyL in Journ. Bot. 1875, p. 334 ; Cromb. in Journ. Linn. Soc. Lond., xv. 



p. 183. 

 Lecanora melanaspis, Acharius ; Hook. f. et Tayl., Fl. Antarct., p. 536. 



Kerguelen Island. 



Pannaria obscurior, Nyl. 



Pannaria obscurior, Nyl. ; Cromb. in Journ. Linn. Soc. Lond., xv. p. 183, in Journ. Bot. 1875, 

 p. 334, et in Phil. Trans. Roy. Soc. Lond., clxviii. p. 48. 



Kerguelen Island. 



Psoroma hirsutulum, Nyl. 



Psoroma hirsutulum, Nyl.; Cromb. in Journ. Linn. Soc. Lond., xv. p. 184, in Journ. Bot. 1875, 

 p. 333, et in Phil. Trans. Roy. Soc. Lond., clxviii. p. 48. 



Kerguelen Island. 



Lecanora (Placopsis) gelida, Liim. 



Lecanora (Placopsis) gelida, Linn. ; Hook. f. et Tayl., Fl. Antarct., p. 535 ; Cromb. in Journ. Linn. 

 Soc. Lond., xv. p. 184, in Journ. Bot. 1877, pp. 104, 106, et in Phil. Trans. Roy. Soc. Lond., 

 clxviii. p. 48 ; (varietates vitellina et laterilia). 



Kekguelen Island. 



Lecanora (Placopsis) macrophthalma, Cromb. 



Lecanora (Placopsis) viacrophthalma, Cromb. in Journ. Linn. Soc. Lond., xv. p. 185, in Journ. Bot. 



1877, p. 104, et in Phil. Trans. Roy. Soc. Lond., clxviii. p. 49. 

 Urceolaria macrophthalma, Hook. f. et Tayl. in Lond. Journ. Bot. 1844, p. 640. 



Kerguelen Island. 



