46 I. DISCOIDEI. 6. PARMELIACEI. 



24. Parmelia conspersa (Lich. conspersus Ehrh. 

 ap. Ach. prodr. 118). Thallus stramineo-virens , politus, 

 furfure concolore vel obscuriore saepe conspersus, membra- 

 naceo-cartilagineus , sorediis . . . . ; subtus fuscus , fibrillis 

 brevibus obscurioribus exasperatus ; laciniis primariis sinuato- 

 rotundato-lobatis, alias lineari-lacinulatas facile protrudenti- 

 bus. Apotheciorum discus badius. Parm. centrifuga a,. 

 conspersa Spic. 473. Exs. 379. EB. t. 2097. Lich. 

 centrifug-us Ehrh! crypt. 116. — Ad saxa quartzosa locis 

 apertis in regionib. campestrib. & alpin. p. omn. Europ. t^ 



a. lalior Schfer ; thalli laciniis primariis , simplicius- 

 culis , sinuato-rotundato-Iobatis. Spic. 473. 



b. s^enojo%/'^a (Ach. meth. 206); thallo lacinulis secun- 

 dariis lineari-Iacinulatis obtecto Spic. 473. 



c. abortiva , Schser; thallo supra apotheciis abortivis, 

 atris , subpatellaeformibus vel hemisphsericis , immarginatis 

 consito. — Conferenda cum. Parm. saxatili S". supra p. 45. 



25. Parmelia Mougeotii (Schasr. exs. n. 548). 

 Thallus stramineo-virens , politus , membranaceus , sorediis 

 sulphureis , minutis , orbicularibus , planiusculis ; subtus 

 fusco-ater; laciniis linearibus , planis , transversim rimatis, 

 arcte adpressis. Apotheciornm discus badius , limbus 

 sulphureo-pulverulentus. Parm. conspersa v. quart- 

 zicola Moug. Consid. gejieral. sur la vegetation des 

 Vosges, p. 262. — Legi optimo Mougeotio duce in lapidulis 

 quartzosis (Quarzit de transition) per terram sparsis in 

 summo monticulo Helidre prope Brujerium sito; circa Vire 

 Pelvet! et Delise! in Falaise Brebisson! fide herb. Moug. 



— Apothecia rarissima. 



26. Parmelia centrifuga (Lich. centrifugus. Ach ! 

 prodr. 118). Thallus stramineo-virens, opacus, sub-cartila- 

 gineus; sorediis . . . . ; subtus albus, fusco-fibrillosus; laciniis 

 centralibus convexiusiulis , in crustam rugosam compactis , 

 periphericis radiantibus, explanatis. Apotheciorum discus 

 badius, limbus nudus. Parm. centrifuga ^. multifida ct. 

 centrifuga Spic. 474. Fr ! exs. 48. Linn. lapp. t. 11. f. 2. 



— Ad saxa juxta aquas & ad ligna putrida ; Galliae Le 

 Prevost! per omnem Scandinaviam sylvaticam et Rhutenicam 

 Fr ! Norveg. Schimp! Huben! St. Lorenzbay Eschschoh! 

 Terra nova Depreaux! Prom. b. sp. Zeih ! 



