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Proceedings of the Royal Society 
capitulis i mm. longi, 58-80 fx lati, fusco-nigri, opaci, nonnihil 
fusco-pellucidi, clavatim in capitula 1 y^-J 8 mm. lata abeuntes ; 
capitnla fusco-nigra, nuda ; sporse 6-10 fx longse, 5-6 g latse, bilo- 
culares, atro-fuscse. — Lignicolum : B.C.S. 
EOCCELLEiE. 
Eoccella Balfourii, Mull. Arg. : thallus candide opaco-albus, 
2J-5 cm. altus, suberectus, firmus, lacinise tenuiores teretes, reliquse 
compresso-teretes, snbleves, apice et lateraliter fructigerse; apothecia 
primum innata, dein snbpodicellato-sessilia et basi constricta, margo 
lecanorinus et crassus, discus albo- v. csesio-velatus, denium denu- 
datns et fumoso-niger ; sporse 4-loculares, circ. 23 /x longse, 6-7 v 
latse. — Combeam molluscam simulat. — Saxicola : B.C.S. 
PAEMELIEAS. 
Eamalina debilis, Mull Arg. : thallus 3J cm. altus, lacinise in 
sectione anguloso-teretes, 1 mm. latse, parce ramosse v. simplices, 
crebre foveolato-impressse, flaccidse ; spermogonia atra ; apothecia 
2-3 mm. lata; sporse 14-16 /x longse, 3J-4 fx latse, graciliter fusi- 
formes. — Affinis R. testudinarice americanse. — In insula Socotra 
lectam misit cl. Egeling. 
Eamalina dendriscoides, Nyl. v. minor, Mull Arg. : lacinise com- 
pressse v. tereti-compressae, humiliores ; apothecia 1-2 mm. lata, in 
ramulis terminalia, plana, demum convexa; sporse 12-15 /x longse, 
5 J-6 /x latse, rectse v. leviter curvulse. — Eamulicola : Schweinf. 
Eamalina dendriscoides v. nodulosa, Mull. Arg. : lacinise circ. 
centimetrales, breviter ramulosse, suberectse, subirregulares, subto- 
ruloso-nodulosse et albido-soredioso-tuberculatse. — Saxicola : B.C.S. 
Parmelia tiliacea, Ach. v. rimulosa, Mull Arg. : thallus adjires- 
sus, glauco-albescens, mox subincrassatus et crebre rimulosus, minute 
et parce isidiophorus et soredia csesio-alba majuscula v. tubercula 
isidioideo-aspera sparsa gerens. — Corticola : B.C.S. 
Parmelia convexula, Mull. Arg. : thalli lacinise exiguse, subcon- 
