266 
Supra terram vel inter muscos rarius, presertim in monti- 
bus editioribus et in regione arctica. 'd 
Locis umbrosis cerescens thallum habet pallescentem, vel arr 
(E. albatum Ach. hb. | 
5. E. compaetum (Mass.) Nyl. Pyrenoc. p. 46. 
Thallus badio-fuscus vel fusco-nigricans opacus areolatus, 
areolis plus minus contiguis; apothecia tota RR spora 
longit. circa 0,011, crassit. circa 0,0065 millim 
saxa calcarea in Gottlandia (Lönnroth). i 
Hypothallus niger. Spermogonia De pradita 20 e 
ac in ceteris hujus generis speciebus, spermatia breviter cylindi 
utrogue apice incrassatula (long. d.008, crass. vix 0,001 millim.). 
HI. — VERRUCARIA Pers., Nyl. 
Thallus squamulosus vel areolatus, vel continuus, vel pulver 
reus, aut hypophleodes, obsoletus aut denique nullus prop 15 
Apothecia perithecio denigrato (saltem superne vel ostiolo he. 
parte emersa apotheciorum immersorum epitheciumque marg- 
nantem), raro tota pallida, adhuc rarius perithecio solum 
perne rufescente; spor&e varie. Spermogonia sterigmatil 
simplicibus. é | i 
I. — Species potissime saxicole vel terrestres (vel musecicolx). — 
cies 1—21. 
4. — Paraphyses nulle, gelatina hymenea iodo vulgo vinose rubens. 
Species . ; 
a. — Thallus squamnulosus vel squamuloso-erustaceus. — Species 1-3 
1. — Spore 82 incolores simplices. — Species 1. 
1. V. tephroides. 
tt. — Sporze 2n2 fusce murali-divise. — Species 2—3. 
2: Vöpallida: — 3. V. Garovaglii. 
b. — Thallus areolatus aut areolato-diffractus vel pulvereus aut 
nescens, 4—19. 
t.— Böj 2n2e aut 8re fuse murali-divise. — Species 4—5: 
4. V. umbrina; — 5. V. subumbrina. 
