LICHENS. 169 



82. Arthonia heteromorpha Mùller Arg. 



Thallus flavescenti-albidus, tenuissime cartilagineus, continuus, 

 lsevis, margine effusus; apothecia ^ mm lata, i=J-i mm longa, vulgo ob- 

 longa, elliptica saepeque varie angulosa, plana, rugulosa et atra, nuda; 

 epithecium late fuscidulum, lamina cseterum cum hypothecio hyalina; 

 asci globoso-obovoidei, 8-spori; sporse e hyalino demum (vetustate?) 

 fuscse, 15^-^0?- longae, io^-iô^ latœ, oblongo-ellipsoidese, (2-) 4-locu- 

 lares, loculi terminales intermediis duplo breviores et distincte angus- 

 tiores. — Extus haud dissimilis A. polymorphes Acli., sed sporse multo 

 majores et ambitu et prsesertim structura peculiari valde diversse. 



Corticola in ramis Fagibeluloidis ad baie Orange (D r Hyades, n° 1535 

 pr.p.). 



Trib. XV. PHYLLOPYRENIE^. 



83. Lepolichen coccophorus Trevisan. 



Caratteri di dodici nuovi generi, p. 1, i853. 



Parmelia coccophora Montagne, in Cl. Gay, Flora chilena, VIII, p. 1 38, et 

 Allas, tab. 12, fig. 2 (ubi sporse erronée 4-loculares); Sylloge, p. 33o. 



Lecanora coccophora Nylander, Additamenta in Floram crypto gamicam Chi- 

 lense/n, p. i83. 



Thelocarpon coccophorum Nylander, Exposilio synoptica Pyrenocarpeorum, 

 p. 10, i858. 



Corticola in ins. Clarence (Hariot, n° 2; pulchra sed substerilis), 

 et in ins. Burnt, Terre de Feu (Hariot, n° 74). 



Est Licben summopere insignis, fructu pyrenocarpico et thallo folia- 

 ceo praeditus, unde tribus nova Phyllopyrenieœ : thallus phylloblasticus, 

 horizontalis, laciniatus, lacinia3 subtus rhizinis adnatse, gonidia depau- 

 perato-chroolepoidea, viridia, apothecia pyrenodea. — Est tribus ana- 

 loga Parmelieis inter Lichenes gymnocarpicos. Pariter Pyrenolhamnia 

 Tuck. {West Lichenes, p. 22) tribum distinctam Thamnopyreniearum 

 offert thallo fruticuloso, apotheciis pyrenodeis. 



