Page:Journal of botany, British and foreign, Volume 34 (1896).djvu/231

 LICHENES ANTILLARUM A W. R. ELLIOTT COLLECTI. 209 thecia thallo immersa, verrucas nullas formantia, margine ostiolari impresso. Sporse 6-8-septat« (raro S-septatae), long. 0-028-0'038, crass. O-010-O-Oll millim. Ad corticem arboris in Morne Couronne in Dominica (n. 169). Perithecium laterals sordide pallidum, columella centrali pallida, apice fusco-nigra. Sporae Snae, oblongas, apicibus rotundatis, decolores, iodo violascentes. 8. T. (Ocellularia) albidum Nyl. Licli. Nov.-Granat. ed. 2, 328. Ad corticem arboris in Eichmond Valley in St. Vincent (n. 271). Thallus in^equalis, opacus, albidus, sat tenuis, materia cretacea. Apothecia aperta, crebra, disco caesio-pruinoso, 0-2-1 millim. lato, impresso, thallum baud aequante, demum anguloso vel irregulari, margine ostiolari albo, irregulariter fisso verruculosove, demum plus minusve reflexo. Perithecium pallidum, tenue, columella nulla. Sporae 8na9, decolores, altero apice rotundato aut raro obtuso, altero obtuso aut rarius acuto, vulgo 6-9-septat8e, rarius 3-11-septataB, iodo non reagentes, long. 0-015-0'030, crass. 0-005- 0-006 millim. 9. T. (Ocellularia) vagum, sp. n. Thallus crassitudine mediocris, sat aequalis, cinerascens aut glaucescenti-cinereus, nitidiusculus. Apothecia crebra vel creberrima, pro parte etiam confluentia, verrucas 0-6-0-7 millim. latas, hemisphaericas, basin versus dilatatas aut sat abruptas formans, ostiolo sat parvo, circ. 0-2-0-15 millim. lato, recte aut oblique disposito, rotundato, mar- gine ostiolari saepe albido, integro. Perithecium superne fusco- fuligineum aut fuscescens, latere pallidum, basi deficiens, columella centrali fuscescente. Sporae 8n£e, decolores et demum dilute pallidae, altero apice rotundato, altero obtuso, 3-5-septatae, iodo caerulescentes, long. 0-013-0-017, crass. 0'0055-0-007 millim. Ad corticem arboris in Richmond Peak (1000 ped. s.m.) in St. Vincent (n. 260). Ad species inter PhcBotremata et OceUularias intermedias pertinet, sporis demum dilute pallidis. Comparabile cum T. calvescente Fee et T. meiospermo Nyl. Habitu T. obturatum Ach. in memoriam revocat. Trib. 16. PiLocARPEiE. 1. PiLOCARPON. 1. P. LEUCOBLEPHARUM (Nyl.) Wain. ]&tud. Bres. ii. 89; Eeinke, Abh. Flecht. iv. 149. Bilimbia leucohlephara Am. Lich. Jur. 180. Lecidea Hue, Addend. 176. Var. poicHiLUM Wain. Thallus crustaceus, tenuis, leviter sub- verrucoso-inaequalis, areolis majoribus minoribusve, albidis aut glaucescenti-albidis, KHO dilute lutescentibus, Q^Cl^O^ baud reagentibus, crebre contextis, supra hypothallum nigricantem aut passim cinerascentem, crebre contextum, dispersis. Apothecia adpressa, 0-6-0-3 millim. lata, disco piano, nigro, nudo, margine tenui, tomentoso, albido. Hypothecium fusco -nigricans, ex hyphis conglutinatis formatum, ceterum excipulum albidum et ex hyphis laxissirae contextis constans. Hymenium circ. 0-040 millim. eras- sum, iodo persistenter caerulescens (demum obscuratum). Epi- thecium caeruleo-nigricans, KHO caeruleo-virescens. Paraphyses parcae, parce ramoso-connexae. Sporae 8nae, oblongae, long. 0-010- JouRNAL OF Botany. — Vol. 34. [May, 1896.] p