vu'iulva Scluer. Eniun. jt. :ili)(iioii Ham. in DC. Fl. Fi. :>, p. 

 318, quae est Lecidea Prernslii var. coertil., ex typo hb. Ram.). 

 — In Gallia meridionali et ad basin Pyren.porum supra saxa 

 calcarea passim frequens. Tballo tenui plumbeo-cinerascente 

 dilTert ab afTinibus, at minime certum est, an bonam sistat spe- 

 ciem. Perithecia integre nigra. 



IS. V. riipestris Schrad. Spic. Fl. G. p. 109, t. i, f. 7, DC. Fl. 



Fr. 2 , p. 317, Moug. St. Yog. 951 , Fr. L. E. p. 430, Leigbl. 

 Anij. Lich. p. 37 , t. "25, f. 4; V. Schraderi Ach. L. U. p. -284, 

 Syn. p. 93; V. muralis DR. Alger, p. 290. — Frequentissima in 

 tota Gallia ad calceni, etiani in Algeria. Thallus parens albidus 

 vel obsoletus. Apotliecia immersa (inde V. immersa Pers. in 

 Usler. iV. ^/m. jBo/. 1 St., p. 23), parte perithecii ita intruso 

 tenuiore sa^peque pallidiore. Maxime est polymorpha speciebus- 

 que plurimis divisa fuit. Ad cimentum murorum vel terram 

 efllcit : V. ruderuin DC. Fl. Fr. 2, p. 318; ad calcem durioreni 

 iaivigatam : V. calcisedam DC. 1. c. , macula tliallina alba, apo- 

 theciis minoribus. V. Hochstelleri Fr. L. E. p. 435 (ex speci- 

 uiinib. typicis llocbstetteri in hbar. variis; Urceolaria srrupom 

 var. verrucosa Schter. Ennm. p. 90, L. //. 292) banc sistit lapidn 

 gibberuloso innatam , apotbeciis majoribus (.luctoribus hie , ut 

 sa;pe alibi , substratum cum tballo confundentibus) , et Pyrenula 

 hiascens Ach. L. U. p. 314, Syn. p. 219 ab eadem forma parum 

 differt. Eadem sit V. cincta Ram. in Mem. Mvs. xiit, 1825, p. 

 246 et Afin. Soc. Linn. Par. 1827, p. 435. Yarias fornias cxpri- 

 niunt nomina : V. snbalbicaus Leiglit. Aug. Lick. t. 25, f. 1, V. 

 immersa i. 25, f. 2, V. Harrimanni t. 19 , f. 5 (Sch;cr. Ennm. 

 p. 216), V. pnlula t. 26, f. 1, V. papillosa t. 24, f. 1 , V. cine- 

 reo-nifa Scha;r. Spic. p. 338. Abit deinde hiec species in varie- 

 tatem integram (F. Irevata Leight, Aug. Lick. t. 19, f. 1, 2 [non 

 Acb.|, cujus forma sit V. murina ibid. f. 3), peritheciis etiam 

 parte immersa a;qualiter crassis et nigris, in Gallia passim 

 (ejus statuni ocbraceo-tinctum , e Cebennis inferioribus , in hb. 

 Mougeot vidi). Variat demum I'URpurascens (F. imrpurasceus 

 Mm. PI. Lich. t. 19, f.,3, DC. Fl. Fr. 2, p. 317), macula thallina 

 ex orcineate calcico roseo-tincta (nee « ex oxido mangani » , 

 nl allatuni fuit), in Gallia meridionali satis fre(iuenler ininiixla 



