36Û S. IRI1I\I ET J.-E. PLANCHON. (w. 1\YLAM)ER, 



tricosam (Ach.),sed sporis 6-8-locularibus (longit. mm , 020-25, crassit. 

 mm , 007-8). Tequendama, altit. 2700 metr. (coll. Lindig., 2637). Sat 

 typica Gr. inusta est Gr. planala Ach., Syn., p. 86. 



18. Graphis dendritica Ach., NyL, Prodr. Lich. G ail. Alger. , 

 p. 150. 



Ad cortices arhorum. Bogota, altit. 2600 metr. (coll. Lindig. 2599); 

 Villeta, altit. 1200 metr. (coll. ead. 899). 



, Obs. — F. thallo albo daturin coll. Lindig. 2563, e Fusagasuga, altit. 

 2200 metr. — F. apotheciis simplicioribus, in ead. coll. n is 2727 et 

 2733, e Villeta, altit. 1200-1600 metr.; etiam e Cune distribuer sub 

 n° 2635. — Sporœ in hac specie 8-12-loculares, longit. mm , 026-50, 

 crassit. mm ,007-0 mm ,010. Hypothecium tenuiter infuscatum. 



19. Graphis scalpturata Ach., Syn., p. 86. — Thecse mono* 

 sporse, sporœ fuscge murali-divisœ, longit. mm ,088-0 mm ,150, 

 crassit. mm ,02û-38. Hypothecium incolor. 



Ad cortices arborum. Bogota, altit. 2500-2600 metr. (coll. Lindig. 

 2578,2636, 2732, 750); Villeta, altit. 1100-2000 metr. (coll. ead. 

 2721, 2853,752). 



Obs. — Hue pertinent ut synonyma : Arthonia cœsio-pruinosa Fée, 

 Ess., Suppl., p. 36, A. marginata Fée, Ess., p. 51, t. 1 4, f. h (non 

 Duf.), A. Jobstiana Fée, ibid., SuppL, p. 37; et Lecanactis pruinosa 

 Mnt. ex Lepr. Guyan., n° 781, non ditfert nisi thecis 8-sporis. 



20. Graphis leucocheila (Fée, Ess., p. 52, SuppL, p. 38, 

 t. 36, f. 3, sub Arthonia). — Optime evoluta, apotheciis margine 

 thallino turgescente strialulo vel substriatulo, epithecio nigricante 

 dirumpente, demum planiusculo. Sporae oblongee nigrescentes vel 

 fuscae 6-loculares, longit. circa mm ,030-42, crassit. mm ,011-14 

 (iodo violacée obscuratae). Hypothecium incolor. 



Villeta, altit. 2200 metr., ad cortices arborum (coll. Lindig. 2843, 

 842). 



Obs. — .Facie est speciei e stirpe Graphidis frumentariœ (prope 

 rufuhm Mnt. locum tenens), sed ad stirpem accedere videtur Gr. den- 



