45. 



126 Dr. E. Stizenl)erger'3 AnaJi/lical Key to the Lecideae. 



f Apotliecia 0*2 inillim. broad, brown. L. mesonwUi, \vl. 

 Ai J AiHithecia 3-0o niillim. broad, browu. L. lewobU-phara, Nyl. 

 j Apothecia Oo luilliui. broad, black. L. trachonu, f. )uar(/iiiati<l<i, 



( Nyl. 



Ilynu'iiiuni tinted blut' by iodino 46. 



Ilymeiiiuiu tinted vioU't or vinous-yellow by iodiiie 57. 



jp I Spores nearly acicular. L. ciipreo-roiklla , Nyl. 



] Spores elliptical, kidney-.shaped, or fu!*iforni 47. 



.- \ Apothecia without marjnn 48. 



'■ I Apothecia with evanescent or pei*sisteut margin 52. 



^ I Apothecia permanently brown-black or black 49. 



1 Apothecia vaiiable in colour 51. 



I Apothecia ven," small ; paraphyses free-branched. L. Kitach- 

 49. \ keaiia, Lahm (Kabh. 583 pp. ; Am. 217). 



I Apothecia large ; paraphyses compact or indistinct 50. 



Apothecia flat ; hymenium blue-tiieen above. L. allotropa, Nyl. 

 Apothecia hemispherical ; hymenium blue-green above. L. sa- 



hitletorum, v. miUdria, f. frisepta, Naeg. (liepp, 20, 284, 285; 

 50. <; Zw. 270; Keirb. 1:53; Leight. 238; Hepp, 510 (non Leight. 



210); Arn. 107; Mudd, 157). 

 Apothecia hemispherical; hymenium brown-black above. L. 



sahuhtorum, \. obscurata, f. cphnelas, Stizb. 



(Apothecia gi-ey ; hj-pothecium colourless. L. Kaeqelii, f. vcaMa, 

 Stizb. 

 Apothecia red-brown ; hj'pothecium colourless. L. Kaegelii, v. 



Iobsciirtusciila, Nyl. 

 Apothecia red-brown to brown, within flesh-coloured. L. sabu^ 

 \ letofum, V. obscurata, f. microcafpa, Th.,Fr. 



eg i Apothecia over 0'5 miUim. in diameter .53. 



"■ ( Apothecia under Oo millini. in diameter 54. 



'Spores 30 mik. long; thallus finely granular, thin. L. sabu- 

 letonan, v. obscurata, Sommf. (Anzi, Langob. IGG; Uepp, 11 

 pp. ; Zw. 193 pp.). 

 Spores 30 mik. long ; thallus verrucoso-scurfy. L. sabulefonan, 

 v. obscurata, f. leucorhrjpara, Nyl. 



I Spores at most 20 mik. long .55. 



I Spores above 20 mik. long 56. 



53. 



54. 



-- I Margin persistent. L. trachona, v. Notarisiana, BagL 

 ■ I Margin evanescent. L. trachona, Ach. 



f Spores narrow, 4 mik. broad ; epithecium colourless. L. sabu- 

 i^ J letorvm, v. obscurata, f. renusta, Ilepp. 



1 Spores broad, G mik. and more ; epithecium yellowish or brown. 

 ( L. Naegelii, Hepp. 



I Apothecia without margin 58. 



I Apothecia with evanescent or persistent margin 62. 



( Apothecia black, small. L. Kitschkeana, Lahm. 



j Apothecia black, large. L. sabulctorum, v. miUaria, f. simpli- 



^ cior, Nyl. 



( Apothecia pale 59. 



E-q I Apothecia flat ; paraphyses none. L. metamorpheay Nyl. 



I Apothecia slightly convex ; paraphyses compact GO. 



57. 



58. 



