170 REV. W. A. LEIGHTON ON THE LICHENS OF CEYLON. 
nente; spore 2, pallide virescentes, magna, elongato-ellipticæ, apice altero subat- 
tenuatee, murali-divisæ, iodo non tinctæ, 
Central Province. 
Paraphyses distinctz, graciles, iodo non tincte. 
Plate XXXVI. fig. 7. 
93. T. DISCIFORME, Leight., n. sp.: thallus albido-glaucescens, tenuis, lævigatus, subni- 
tidus; apothecia urceolato-scutelliformia, verrucis sparsis orbicularibus hæmi- 
sphæricis leevigatis, ostiolo magno dilatato-aperto, margine thallino crassiusculo 
elevato subceraceo pallide fulvescente integro, margine proprio tenui elevato albo 
erecto; discus planus, dilatatus, niger, albo-pruinosus; spore 2 aut 4, incolores aut 
pallide virescentes, cylindrico-ellipticæ, apice utroque attenuate, murali-divisæ 
(seriebus transversis 24 cellulis 3, 2, aut 1, in quavis serie) iodo non tinctæ. 
Central Province. 
Paraphyses distincte, iodo non tinctze. 
Plate XXXVI. fig. 8 
94. T. ALBIDIFORME, Leight., n. sp.: thallus lutescens, tenuis, opacus, rugosus, verrucis 
sparsis orbicularibus turgescentibus subdepressis, ostiolo mediocri aperto, margine - 
thallino crassiusculo subceraceo subalbido-pruinoso, margine proprio discreto inte- 
gro albo-farinoso incurvato subpruinoso; spore 8, incolores, maximæ, Me pen 
fusiformes, multi(21)-cellulosæ, iodo cærulescentes. 
Central Province. 
Paraphyses distinctz, graciles, iodo lutescentes. 
Plate XXXVI. fig. 9. 
95. ASCIDIUM DEPRESSUM, Nyl. 
Central Province. 
Paraphyses distincte, iodo non tinctæ; spore 1 vel 2, pallide virentes, iodo leviter cærulescentes. 
Plate XXXVII. fig. 87. 
96. A. PERTUSARLEFORME, Leight., n. sp. : thallus sordide cinerascens, tartareus, crassus, 
rugulosus, sparsim granulosus, hinc inde rimoso-areolatus; apothecia in protube- 
rantiis thallinis majusculis inæqualibus discretis depresso-umbilicatis, margine 
crassissimo turgido granulato-inæquali, ostiolo minuto infundibuliformiter perfo- 
rato obsolete marginato; spore 1 vel 2, maximæ, incolores, e Dii 
apice utroque rotundatæ, 11-12-septatæ, iodo cærulescentes. 
Central Province. 
Facie externa generaliter simillima Pertusarie fallaci. Perithecium dimidiatum, fuscum, basi deficiens. 
Paraphyses graciles, distinctæ, iodo læviter lutescentes. Thallus hydrate,kalico ochracee tinctus. 
Plate XXXVI. fig. 10. 
97. A. THELOTREMOIDES, Leight., n. sp.: thallus albido-glaucescens, concretus, effusus, —— 
ble pi opacus ; —— in protuberantiis thallinis leviter elevatis parvis n 
