10 GRAPHIDEÆ FEEANÆ. 
A proxima Ocellularia defossa Müll. Arg. differt disco non profunde defosso, sporis 
majoribus et magis divisis. — In corlice Cascarillæ (ad specim. Féeana). 
2. PHÆOTREMA Müll. Arg. 
Characteres omnes ut in Ocellularia, exceptis sporis fuscis. 
Phæotrema subfarinosum Müll. Arg.; Pyrenula subfarinosa Fée Ess. 
p. 79 et Suppl. p. 81, t. #4, f. 2%; thallus sat albus, tenuis, lævis: apothecia thallo 
leviter emergente cincta, orbicularia, margine integro, demum latius aperta; diseus 
niger, nudus, ‘/,,-/,, mm. latus, modice depressus: perithecium undique completum, 
nigrum, tenue ; lamina hyalina; paraphyses conglutinatæ; asci Î-<eriatim 8-spori; 
sporæ mox intense fusco-nigræ, 20-22 } longæ et 11-12 4; latæ, ellipticæ, utrinque 
obtusæ, 4#-loculares. —- Juxta proximum Ceylanense Phæotrema subconcretum , sc. 
Thelotrema subconcretum Leigbhh. Lich. Ceyl. Thwait. n° 89, cujus apothecia non emer- 
gunt, locandum est. — In cortice Cinchonarum (ad specim. Féeana). 
3. THELOTREMA Müll. Are. 
Thelotrema Ach. et Auct. pr. p., quoad species sporis hyalinis parenchymaticis præditas. 
* Sporæ e 5-6-loculari parenchymaticæ. 
|. Thelotrema leucinum Mül. Arg.;: Thelotrema urceolare Fée Ess., 
p. 92 (et hb., sed in tab. 23, f. 1, est species alia) non Ach.; thallus albus, tenuis, 
sublævis; apothecia sat numerosa, depresso-hemisphærica, v. late truncato-pyrami- 
dalia, */,,-*/,, min. lata, cum thallo concoloria, opaca, lævia, crasse thallino-margi- 
nata; margo proprius distinctus, subemergens, niger et crassulus; discus demum 
latius apertus, */,,-"/,,mm. latus, niger, velamine fugace albido tectus; lamina hyalina : 
sporæ in ascis linearibus subuniserialiter 8-næ, hyalinæ, 22-26 : longæ, 8-10 » 
latæ, oblongato-ellipsoideæ vel sæpius obovoideæ, 5-loculares, loculi pro majore parte 
2-locellati. — Hæc juxta Th. leucomelanum Nyl. locanda est, a qua recedit apotheciis 
paullo minoribus, apertura disci non angulosis et sporis minus divisis. — Cinchoni- 
cola (ad specim. Féeana). 
