296 LICHENES ANTILLARUM A W. R. KLLIOTT COLLECTI. sfcrictas, apicibus rotundatis. Apothecia circ. 0-4 millim. lata. Asci cylindrici. Nimis parce obvia. 2. S. ANTILLARUM (Fee) Miill. Arg. Pyr. Cub. 879 ; Pyr. Feean. 5. Melanophthalmnm antillarum Fee, Ess. Crypt. Ecorc. p. c, tab. ii. fig. 2. Ad folia filicis in Morne Cochon (1200 ped. s. m.) in St. Vincent. Parce obvia. 3. S. suBTiLissiMA (Fee) Miill. Arg. Lich. Beitr. n. G78, n. 1573; Pyr. Feean. 6. Racoplaca suhtilissima Fee, Ess. Crypt. Ecorc. p. xcix, tab. ii. fig. 5. Ad folia in Bonhomme Woods in St. Vincent. Parce obvia. 10. Arthopyrenia. 1. A. porospora, sp. n. Thallus tenuissimus, partim epi- pliloeodes, albidus aut sordide albicans, opacus. Apothecia verrucas hemisphiericas, 1 '2-0-8 millim. latas, nigras, vertice convexas, opacas formantia. Perithecium depresso-globosum, fuligineum, dimidiatum, basi anguste deficiens. Nucleus subglobosus aut depresso-globosus, albus, oleosus, iodo non reagens (metaplasma ascorum vinose rubens). Paraphyses ramoso-connex^e, numeros^e. Asci ventricoso-clavati. Sporae Snae, distich^, long. 0-042-0-046, crass. 0-016-0'024 millim., ovoideo-ellipsoidese autovoideo-oblongae, l-septatse, septa vulgo fere in medio, membrana bene incrassata (halone indutae), medio leviter constrictae, apicibus vulgo obtusis (aut apice crassiore rotundato) ; in apice crassiore aut vulgo in ambobus apicibus cavitas sporarum in sinum appendicularem sive porum clausum fundo rotundato instructum latum continuata. Gonidia chroolepoidea. Ad corticem arboris in Morne Trois Pitons (4500 ped. s. m.) in Dominica. Cum A. gemmata (Acli.) affinis, sed apotheciis et sporis majoribus, ascis ventricosis, et sporis poro clauso instructis ab ea differens. — Didymella cinchojice (Ach.) Wain. Etud. Bres. ii. 283, ad fungos pertinens, ad corticem arboris in Roseau Valley (n. 118) in Dominica. Triehothelmm mmus Wain., item ad fungos pertinens, supra folia arboris parcissime ad Bon- homme Woods in St. Vincent lectum est. Mycelium partim supra thallum alienum gonidia phycopeltidea continentem, partim supra epidermidem folii crescens. Perithecium circ. 0*15 millim. latum, superne pilis radiantibus, apicem versus cinerascentibus, annulum formantibus ornatum, fuligineum, basi dilatatum, integrum (basi tenue). Nucleus subglobosus. Paraphyses simplices. Sporae 8nae, decolores, fusiformes, long. 0-025-0030, crass. 0-006 millim., 5-septataB. Ad hoc genus, ad fungos relegandum, etiam Trieho- thelmm epiphyllum Miill. Arg. Pyr. Cub. (1885), 418, Lich. Beitr. (Fl. 1885), n. 923, et Lasiospharia annulata Karst. (Hedwigia, 1889, 193), habitu T. minori Wain, consimilia, pertinent. Ad cortices, folia et thallos varios lichenum crescunt. LICHENES IMPEBFECTI. 1, Cora. 1. C. PAvoNiA (Web.) Fr. ; Wain, ifitud. Bres. ii. 240. Ad truncos arborum in pede montis Morne Couronne in Dominica (n. 219) et in monte St. Andrews (1000 ped. s. m.) in St. Vincent
