73 
Ad cortices (coll. 1828, 2209a, 2789). 
54. Ricasolia erosa Eschw. in Mart. Flor. Brasil. cryptog. 
p- 211, icon, sel. p.25, tab.15 f.2 (sub Parm. crenulata Eschw.); 
Nyl. syn. meth. p. 371 pr. p. et ibid. p. 373 sub Ricasolia cre-' 
nulala v. stenospora, 
Ad cortices (coll. 2209 b). 
55. Parmelia adpressa Krph. ad int. 
Thallus pallide ochroleueus, laeiniato-lobatus, laciniis brevibus 
sinuato-ineisis, laxe dispositis, et substrato arcte adpressis, sub- 
tus niger rhizinis brevibus; apothecia..... 
Ad saxa granitica (coll. 3842). 
Persimilis quoad faciem externam Parmeliae laevigatae Ach. 
minori et Parmeliae conspersae Ach., ab illa colore, laciniis ad- 
pressis, ab hac laciniis brevioribus, sinuoso-ineisis, laxe dispositis, 
ab ambabus reactione chemica differens. Nam medulla lichenis 
nostri hydrate Kalico flaveseit nee rubeseit, ut in Parm. laevi- 
gata et Parm. conspersa. 
Pertinet forsan haec Parmelia, ut videtur, ad illam varieta- 
tem P. conspersae Ach., de qua jam Nylander in Syn. meth. Lich. 
p. 391 mentionem feeit. — 
56. Parmelia macrocarpa Pers. in Gaudich. Voy. Uran. p. 197. 
Ad cortices (coll. 6237). 
Pro bona specie hance Parmeliam habemus, affınem quidem 
Parmel. perlatae Ach., sed apotheciis permagnis, thallo pro parte 
in lacinias parvas proprio modo disseeto satis distinetam; apo- 
thecia testaceo-badia, usque ad 3'/, centimetr. lata, margine in- 
ciso-crenato, non perforata, subtus reticulato-rugulosa; sporae el- 
lipsoideae, incolores, long. 0,024—026, erass, 0,013— 015 mm. 
Thallus Hydrate Kalico fiaveseit, Hypochlor. ealeico colorem non 
mutat. 
57. Parmelia americana Mont. Chile, p. 137; Parm. Kamt- 
schadalis var. americana Nyl. syn. lich. meth. p. 387. 
Corticola (coll. 6238) sterilis! 
58. Parmelia pluriformis Nyl. syn. meth. p. 381 et in Flora 
1869, p. 117. u 
Seilicet thallo laevi aut rugoso lobis multifidis profunde in- 
cisis („facies fere P. physodis‘‘), medulla hypochlorite ealeico ery- 
thrinice tincta. Sporae long. 0,011—016, crass. 0,008—010 mm. 
Nyl. 1. c. coll. 
Corticola (coll. 1834, 1838, 1997). 
59. Parmelia perforata Ach.; Nyl. syn. meth. p. 377. ER 
Ä 
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