NEW LICHENS. 177 
STICTA, Ach. 
1. S. Wallichiana, Tayl.; thallo amplo, suborbiculari, inciso- 
lobato, virescenti-cinereo, rugoso, sublacunoso, utrinque 
levi, subtus concolori, rugosissimo ; laciniis oblongis, 
laceris ; cyphellis minutis, confertis, sessilibus, intus 
albis; apotheciis sparsis, minutis, confertis, disco casta- 
neo, semipellucido, marginem tenuem  integerrimum 
excludente. i 
Has. Nepal; Wallich—Thallus a foot wide; lobes linear, 
lacerous, their colour unaltered when moistened. Cyphellæ 
largely granular, sometimes confluent. This has the habit 
of S. orygmea, Ach. ; but the soredia of this species are 
yellow, and the margins of the apothecia are rugoso- — 
crenulate. 
2. S. rugulosa, Tayl.; thallo cæspitoso, procumbente, cinereo- 
virescenti, lineari, canaliculato, marginato, pinnato, laci- 
niis dichotomis pedatisque; subtus nudo, glaberrimo ; 
gemmis minutis, granulatis, albescentibus; apotheciis 
marginalibus, majoribus, demum planiusculis, disco fusco- 
rufescenti, margine atque extus sinuato-rugosis, demum 
gemmiferis. + 
Has. Peru; Hook. herb.—Thallus 2-3 inches long, pale ash- 
" with a greenish hue; no cyphelle or soredia 
observable on the under side. Apothecia, when full grown 
disproportionately large, compared with the narrow laciniæ 
ofthe thallus; they are coarsely wrinkled on the margin 
and on their backs, the wrinkles waved and at length — — 
bearing minute, granulate, whitish buds, Ours resembles — 
Some states of S. damecornis, Ach., also S. digitata, Hook, _ 
fl. et Tayl, but in no known species are the backs and 
., Margins of the apothecia so strongly wrinkled. — 
5.8. quercifolia, Tayl.; thallo stellato, inciso-lobato, cin 
glauco, lavigato, subtus nigrescenti. 
ee 
