LIGHENES EXOTICI. 261 



]Âch. p. 100. =r In America Iropica (California). In Lich. exol. p. 212 et Addit. FI. chil. 

 y. 178, indicatur cliam in Peruvia et Chili, sed esse possit sequens, nam R. homalea in 

 Rccogn. est R. homalea in Syn. pro parte, et pro maxima parte est sequens species. 



— Var. disrupta Nyl. Recogn. Ramai, p. 10, ul^i defînitur. = In America septentrionali 

 calida (California). 



392. Ramalina testudinaria Nyl. Recogn. Ramai, p. 10, iibi deflnitur. == In America 

 septentrionali calida (California). 



393. R. flacceseens Nyl, Recogn. Ramai, p. 11, ubi deflnitur. ^ In America tropica 

 (Peruvia) et meridionali (Chili). 



394. R. melanothrix Laur., Nyl. Syn. I, p. 290, tab. VIII, fig. 26, ei Recogn. Ramai. 

 p. 12, ubi deflnitur ; Enum. Lich. p. 100. = In Africa meridionali (promont. Bonœ Spei). 



Sectio B. — Spermogonia gonceptacqlis pallidis vel incoloribus. 



1. — Stirps Ramalinœ gracilis Nyl. 

 a. — Species quarum medulla K flavcscit et dein rubescit. 



395. R. rigida Nyl. Recogn. Ramai, p. 14, ubi deflnitur; Enum. Lich. p. 99. R. calica- 

 ris var. rigida Nyl. Syn. I, p. 293 pro parte, ubi etiam deflnitur. — Lichen rigidus Pers. =; 

 In America tropica (in insulis Antillis, Martinica, Lich. Antill. p. 6, R. gracilis Nyl.). Indi- 

 catur etiam in Mexico, Flo7'a 1838, p. 378 et in ins. Taïli, Lich. exot. p. 237, sed esse potest 

 R. gracilis Nyl. vel R. gracilenta Ach. 



— Var. dendroides Del., N}'!. Pecogn. Ramai, p. 14. = In iisdem insulis. 



396. R. dendriscoides Nyl. Flora 1876, p. 412, ubi deflnitur. = In America tropica 

 (Ins. Cuba). 



397. R. anceps Nyl. Syn. I, p. 290 et Recogn. Ramai, p. 13, ubi deflnitur. = In Ame- 

 rica tropica (in Antillis, Martinica, Lich. Antill. p. 6, ubi apothecia et sporse deflniuntur ; 

 Guadalupa, Cuba). 



398. R. peranceps Nyl. Flotta 1876, p. 411, ubi defînitur. = In America tropica (ins. 

 Cuba). 



399. R. Arabum Nyl. Recogn. Ramai, p. 13, ubi deflnitur. R. scopulorum var. implexa 

 Nyl. Syn. I, p. 293^, ubi deflnitur; Enum. Lich. p. 99. — Alectoria Arabum Ach. = Laie 

 distributa, prœsertim in hemispherica australi. In Asia meridionali (India). — In Africa 

 boreali (Algeria, Lich. Alger, p. 309, R. usneoides Mont.), oriental! (ins. Borbonia et Mada- 

 gascar), meridionali (Promont. Bonae Spei) et occidentali (ins. Santa-Helena et Canariis). 

 — In Oceania (Nova Caledonia, Syn. Lich. N. Caled. p. 13, ubi deflnitur, R. angulosa Nyl., 

 et Flora 1867, p. 194). — Etiam in Europa (ins. Corsica). 



400. R. dasypoga Tuck., Nyl. Recogn. Ramai, p. 16 et Syn. I, p. 290, ubi deflnitur. = 

 In America tropica (ins. Cuba et Brasilia). 



b. — Species quarum medulla K non tingitur. 



401. R. gracilis Nyl. Sijn. I, p. 296, tab. VIII, fig. 30 et Recogn. Ramai, p. 17, ubi defl- 

 nitur. — Physica gracilis Pers. = In Africa orientali (Madagascar). = In America tropica 

 (Brasilia). — In Oceania (Australia). 



402. R. angulosa Laur., Nyl. Recogn. Ramai, p. 17, ubi deflnitur; R. linearîs var. an- 

 gulosaNyl. Enum. Lich. p. 99. = In Asia meridionali (Calcutta, Flora 1867, p. 3, ubi 

 sporœ deflniuntur. — In Africa orientali (ins. Borbonia) et meridionali (Promont. Bonae 

 Spei). 



