172 



Fam. V. LECANOREI. 



Thallus crustaceus, uniformis 1. effiguratus, matrici (vulgo) adnatus. 

 Apothecia scutellaeformia, margine tballode cincta; discus primitus clausus. 



Subl'am. 1. Pannariei. 



Thallus totus primitus foliaceo-squamosus, demum crustaceo-compac- 

 tus. Apothecia lecanorina 1. pseudo-biatorina. 



16. Pannaria Delis, emend. 



Thallus subfoliaceus 1. squamuloso subcrustaceus, hypothallo vulgo 

 crasso impositus ; apothecia protuberantia, margine thallode , interdum in pro- 

 prium mutato, subcoronata; sporae simplices, octonae, subellipsoideae 1. oblon- 

 gae, hyalinae. 



: i J i .11 J 



1. P. plumbea (Lightf): (hallo coriaceo-membranaceo, submono- 

 phyllo, radioso-rugoso, livido-plumbeo, ambitu crenato, hypothallo determi- 

 nato, spongioso-tomentoso , coerulescente ; apotheciis demum convexis, ruKs, 

 margine pallidiore, integerrimo. 



Syn. Parmelia plumbea Ach. Univ. p. 466, Syn. p. 202, Fr. L. E. 

 p. 87, Schaer. Enum. p. 35. Lichen Wnbg. Lapp. p. 425. Panna- 

 ria Mass. Rich. p. 110, Koerb. Syst. p. 109. 



Exs. L. Su. n. 68. Schaer. n. 564. 



In truncis arborum frondosarum satis frequenter et ad rupes rarius 

 Nordlandiae meridionalis maritimae insularumque Lofodensium (Barth). 







Asci inflato-clavati, paraphyses validiusculae, apice fulvescenti-fuscescen- 

 tes; sporae octonae, simplices, limbatae, luteolo-hyalinae, plus minus oblongae, 

 0,oii 20 mm. longae et 0,005 7 mm. latae. 



2. P. rubiginosa (Thunb.): thallo membranaceo, suborbiculari, li- 

 vido-glauco, ambitu laciniato-multifido, hypothallo indeterminate , spongioso, 

 coeruleo-nigricanti ; apotheciis subplanis, rubrofuscis, margine thallode in- 

 curvo crenato. 



Syn. Parmelia ruliginosa Ach. Univ. p. 467, Syn. p. 202, Fr. L. E. 

 p. 88, Schaer. Enum. p. 36. Lichen Wnbg. Lapp. p. 424. Pan- 

 naria Mass. Rich. p. Ill, Koerb. Syst. p. 105. 

 Exs. L. Su. n. 107. - Schaer. n. 563. 



Ad saxa irrigua silvatica et truncos arborum praecipue frondosarum 

 Nordlandiae meridionalis maritimae passim copiosa. 



