( 4(10 ) 



crassit. 0,00" iiiillini. , paraphyses Jiraciles sat parca- ol ikim 

 regulares. Gelatina hymenea iodo vinose rubens. — Ad Abiclciii 

 pectinatam *in Vogesis lecta a eel. Mougeot. (Ad fagum in Anglia 

 et taxum ex Leight. 11. ec). Facile cum sequente confunditur. 



15. O. Iterpetiea Ach. Mclh. p. 23, I. U. p. 248, Syn. p. 72, DC. 

 Fl. Fr. 2, p. 309, Duf. Jovrn. Pliys. 1818, lxxxvii , p. 21(3, 

 Moug. St. Vog. 555, Fr. L. E. p. 368, L. S. exs. 34 et 01 , 

 Schacr. Entim. p. 155 (excl. var. siderella), L. H. 95 et 281 , 

 Leight. Br. &raph. p. 19 , t. 5, f. 12, llepp Fl. Eur. 47; Op. 

 rubella Pers. in lister. N. Ann. Bot. 1 St. p. 31, DC. Fl. Fr. 2 , 

 p. 309, Duf. 1. c. (el punctulata ejusd. p. 217); 0. herpetica var. 

 rubella Schacr. Enum. 1, c, L. JI. 95; Op. bullala DC. Fl. Fr. 

 p. 307; Op. atra var. dispersa Schaer. L. H. 633. Th alius 

 ssepius hypophhicodes , epidermidem rimose disrumpens , plus 

 minus distincte determinatus vel effusus, apothecia innata bre- 

 viuscula oblongo-elliptica vel linearia , raro furcatim divisa , 

 epithecio anguste rimiformi , ssepe depressa; sporse (interdum 

 fuscescentes) fusiformes 3-septatai vel simplices, longit. 0,07-27 

 millim., crassit. 0,004-5 millim. Gelatina hymenea iodo vinose 

 rubens. In Nyl. L. P. 80 forma adest maculata thallo evanescente 

 maculatim apothecium singulum modo cingente; ibid. 81 (ad 

 acera) forma diminula typi. — Speciem sistit in Gallia frequen- 

 tissimam , in plurimis arboribus vigentem (fraxinos vero fere 

 omnium prseferentem) ; coniferas autem fugere videtur. Raro ad 

 lapides calcareos occurrit (ex. gr. ad St-Cloud prope Parisios) , 

 thallo obliterate ; (thallo tenui cinerascente distincto continuo , 

 obscure limitato, apotheciis diminutis, sporis longit. 0,023-28 

 millim., crassit. 0,004-5 millim., hypothecio infra tenuiler 

 fuscescente, formam exhibet hujus saxicolam peculiarem ad saxa 

 calcareo-silaceo Anglise obviam, qua? est Platygramma Ilutchin- 

 siae Leight. L. Br. exs. 130, Br. Graph, p. 49, t. 7, f. 28). 

 Varietates pra^cipu* sunt : 1) fuscata Schser. Euum. p. 156, 

 Nyl. L. P. 79 {Op. fuliginosa Pers. in Ann. Wetter. Grs. 2, p. 

 15, Ach. L. U. p. 250; Op. herpetica var. fnllg. Ach. Syn. 

 p. 73; Op. picea Pers. 1. c. p. 14), ad fraxinos et fagos, thallo 

 fuscescente vel fusco-fuliginoso ; 2) albicans, ad truncum Popiili 

 i/a/jfo? saltern prope Parisios obveniens, rarlus ad acera. thallo 



