v 
45 
Spiloma. paradoxum Ach. Lichenogr. uni 
° 
7. 1359. (Status evolutus.), 
Leeidea. dryina Ach. I. c. p. 178. (Status im- 
perfectior corticola.). 
‘Species pervulgata ad lignum et cortices Quer- 
cus, Abietis, Pini, Alni, Betulae etc, 
Speeimina ia ligno denudato perfectiora; in 
corlice minora, obscuriora, magis scabrosa, Crusta 
'tenuissima, late effusa, indeterminata, ' contiguaz 
junior membranacea, demum et pulverulenta, alba, 
einerascens, tandem pallide ferruginea ; passim ob- 
soleta. Apothecia convexa, mox planiuscula, irre- 
gularia, juniora fere rubra, dein fusca, tandem, 
nigra, nuda nec pruinosa. Varietates non paucae, 
sed vix dignae, quae seorsim nötentur. Sporuli 
constanter fulvi et in speciminibus opfime explicatis 
singulare hoc vegetabile, hactenus male intellectum, 
optime distinguunt 
I, Pyrenoiheu 
Char. ess. Apotheeia ostiolata, nucleum farina+ 
ceum protrudentia, demum dilatata, subscutelli« 
formia, 
Desc. Thallus erustaceus, effusus, adnatus, 
uniformis, constanter praesens, qui a fungis opfime, 
distinguit, Apotheecia idiothalama , sessilia, regula- 
ria, juniora imımarginata, subsphaerica raro cylin- 
dricas 1. depresso -suhrotunda, -undique plerumque 
pulvere albido obducta, conniventia (clausa) ; moxX 
per ostiolum acquale pulverulentum protrudentia 
nucleum, dein magis-magisque dilatata, scutellifor- 
nid, 
