SYNOPSIS, 7 
Tribe XIV. STICTEI Nyl. Thallus large, membranaceo-lobed, 
cyphellate or ecyphellate beneath; gonidial layer containing go- 
nimia or true gonidia; medulla woolly : apothecia lecanoroid or 
parmeleine. 
Subtribe I. STICTINEI Nyl. Gonidial layer consisting of goni- 
mia in plurilocular nodules. 
44, Stictina Nyl. Thallus rhizinoso-tomentose and cyphellate 
beneath : apothecia lecanoroid, rarely parmeleine, usually with 
septate spores ; spermogones innate, with jointed sterigmata and 
apically incrassate spermatia. 
45. Lobarina Nyl. Thallus scrobiculose, ecyphellate beneath : 
apothecia lecanoroid, with 3-septate spores; spermogones as in 
Stictina. 
Subtribe II. EUSTICTEI Nyl. Gonidial layer consisting of 
gonidia or gonidimia (in Ricasolia). 
46. Lobaria Hoffm. Thallus scrobiculose, ecyphellate beneath : 
apothecia lecanoroid, with 1-3-septate spores ; spermogones innate, 
with jointed sterigmata and apically incrassate spermatia. 
47. Sticta Schreb. Thallus rhizinoso-tomentose and oyphellate 
beneath: apothecia lecanoroid, rarely parmeleine, with variously 
septate spores; spermogones as in Lobaria. 
48. Ricasolia De Not. Thallus often entirely glabrous and very 
rarely cyphellate beneath: apothecia parmeleine, with septate spores ; 
spermogones in mastoid prominences, with jointed sterigmata and 
apically thickish spermatia. 
Tribe XV. PELTIGEREI Nyl. Thallus frondosely dilated, 
fragile ; cortical layer usually wanting on the lower surface ; gonidial 
stratum consisting either of gonidimia or usually of gonimia: 
apothecia peltiform. 
Subtribe I. PELTIDEI Nyl. Thallus bearing cephalodia ; 
gonidial layer consisting of gonidimia: apothecia variously situated. 
49, Peltidea Ach. Thallus with the cortical layer not conti- 
nuous on the underside: apothecia marginal on the upper surface, 
with septate spores ; spermogones unknown. 
50. Solorina Ach. Thallus with the cortical layer not conti- 
nuous on the underside: apothecia scattered and innate on the 
upper surface of the thallus, with bilocular spores ; were 
unknown. 
Subtribe II. PELTIGERINEI Nyl. Thallus destitute of cepha- 
lodia; gonidial layer consisting of gonimia: apothecia variously 
‘situated. 
