170 NOUVELLES ARCHIVES DU MUSEUM. 



2833. Opegrapha quaternella Nyl. in Flora 1885, p. 449, ubi defînitur. = In Ame- 

 rica septentrionali (New Bedford). 



4. — Slirps Opegraphœ atrse Pers. 



2834. O. atra Pers., Nyl. Lich. Scand. p. 254 et apud Hue Addend. Lichenogr. europ. 

 p. 250, ubi deflnitur; Enum. Lich. p. 130; 0. Melambo Fée Essai Supplém. p. 20, 

 tab. XXXIX flg. 4 bis. = In Asia. — In Africa occidentali (ins. San Thomé, Flora 1886, 

 p. 176, et Contrib. daFlora d'Afric. p. 12 et Lich. ins Guin. p. 32; ins. Madera, Floral861, 

 p. 234). — In America tropica (Columbia, Lich. exot. p. 229), meridionali (Chili, Addit. 

 FI. chil. p. 186) et australi (freto Magellanico, Lich. N. Zeland. 1888, p. 147). — In Oceania 

 (ins. Sandwich, Lich. exot. p. 245). — Etiam inEuropa. 



2835. O. simplicior Nyl. Syn. Lich. N. Caled. p. 55, ubi defînitur; in Flora 1867, 

 p. 195 ; 0. atra f. simplicior Nyl. Exposit. Lich. N. Caled. p. 49, ubi defînitur. — In 

 Oceania (Nova Caledonia). 



2836. O. agelsea Fée Essai Supplém. p. 23, tab. XXXIX Opegr. fig. 14 bis, Nyl. Syn. 

 Lich. N. Caled. p. 56, ubi defînitur; Enum. Lich. p. 131 ; 0. prosodea Mont. Cryptog. 

 guyan. p. 40; O. macularis var. picta Eschw. FI. brasil. p. 85. = In Africa meridionali 

 (promont. Bonse Spei). — In America tropica (Guyana; Nova Granata, Prodr. FI. N. Gran. 

 éd. l a p.61 et éd. 2 a p. 91, ubi sporae definiuntur et Addit. p. 568; Peruvia). 



2837. O. subcentrifuga Nyl. Lich, exot. p. 245, ubi defînitur ; Enum. Lich. p. 131. = 

 In Oceania (ins. Sandwich). 



2838. O. microphlebia Nyl. Lich. Antill. p. 16, ubi definitur. = In America tropica 

 (ins. Guadalupa). 



2839. O. microphleboides Nyl. in Flora 1886, p. 104. = In America tropica (ins. 

 Cuba). 



2840. O. mesophlebia Nyl. in litt. = In America septentrionali calida (Mexico, 

 legit Eckfeldt). 



2841. O. lithyrga Ach. Syn. Lich. p. 72, Nyl. Lich. Scand. p. 255, ubi definitur; 

 O. atra var. lithyrga Nyl. Lich. Alger, p. 315 et Prodr. Lich. Gall. p. 158. = In Africa 

 boreali (Algeria). — Etiam in Europa. 



2842. O. subdifficilis Nyl. Lich. N. Zeland. 1888, p. 115 et fig. 10, ubi deûnitur. = In 

 Oceania (Nova Zelandia). 



2843. O. consimillima Nyl. Lich. ins. Sti Paulip. 7 et in Flora 1886, p. 321, ubi deû- 

 nitur. = In Africa orientali antarclica (ins. Sli Pauli). 



2844. O. difficilior Nyl. apud Cromb. Ins. Rodrig. p. 443, ubi definitur. = In Africa 

 orientali (ins. Rodriguez). 



2845. O. leptographa Nyl. Lich, ins. Guin. p. 32, ubi definitur. = In Africa occiden- 

 tali (ins. Principis). 



2856. O. ehlorographiza Nyl. in Flora 1886, p. 104. = In America tropica (ins. Cuba). 



2847. O. fusco-spurcans Nyl. in Flora 1886, p. 104. = In America tropica (ins. Cuba). 



2848. O. interductula Nyl. in Flora 1886, p. 104. = In America tropica 'ins. Cuba). 



2849. O. oblonga Nyl. in Flora 1886, p. 104. = In America tropica (ins. Cuba) 



2850. O. parvula Nyl. apud Cromb. Lich. capens. p. 179, ubi definitur. = In Africa 

 meridionali (promont. Bonse Spei). 



5. — Stirps Opegraphœ vulgatœ Ach. 



2851. O. vulgata Ach. Method. Lich. p. 20, Nyl. Lich. Scand. p. 255, ubi definitur; 



