262 LICHENES ANTILLARUM A W. R. ELLIOTT COLLECTI. dilutius fuscescens. Paraphyses ramoso-connexse. Sporae 8naB, de- colores, fusiformes, apicibus obtusis, long. 0'014-0-017, crass. 0-004 -0'005 millim., S-septatae, halone tenui indutse. Ad corticem arboris in Union Island prope St. Vincent (n. 280 pr. p.), una cum 0. sexloculari. 5. O. sordidescens, sp.n. Thallus tenuis, glaucescens. Apo- thecia numerosa crebraque, elevata, long. 0-7-0'2, latit. 0-3-0'2 millim., oblonga et pr. p. rotundata, simplicia aut subsimplicia, recta aut leviter curvata. Perithecium integrum, fuligineum, labiis arete conniventibus. Discus rimaeformis, inconspicuus. Hymenium iodo vinose rubens. Paraphyses ramoso-connexaB. Sporao Snas, dilute fuscescentes (in KHO pr. p. decolorataB), aciculari-fusiformes, apici- bus obtusis, long. 0-034-0-054, crass. 0-003-0'0045 millim., 7- septatae, halone nullo indutae, cellulis fere aeque longis. Ad corticem arboris prope Government House in St. Vincent. Ad subg. Schro- grapham Wain. Etud. Bres. ii. 136, pertinet. 6. 0. FiLiciNA Mont. ; Wain. Etud. Bres. ii. 133 {Opegraphella Miill. Arg. Lich. Beitr. n. 1540). Ad folia arborum in Dominica et ad Bonhomme Woods in St. Vincent. Perithecium dimidiatum. Gonidia phycopeltidea. Hue etiam pertinet 0. phyllobia Nyl. Fl. 1874, 73, et Wain. l,c. (gonidia phycopeltidea, nee chroolepoidea) , conf. Miill. Arg. I. c. 3. Chiodecton. 1. C. (Enterographa) rufescens, sp. n. Thallus tenuis, albido- glaucescens, crebre contextus, hypothallo evanescente aut tenui nigricante crebre contexto limitatus. Apothecia thallo immersa, approximata, elongata, long. 1 •5-0*3 miUim., abundanter radiatim et dichotome ramosa, flexuoso, disco rufescenti-testaceo, epruinoso, 0*05 millim. lato, thallum aequante. Hypothecium albidum. Peri- thecium indistinctum. Hymenium iodo persistenter caerulescens (demum obscuratum), ascis vinose rubentibus. Sporae 8naB, de- colores, ovoideo-oblong^, long. 0015-0-019, crass. 007 millim., 3-septatae, cellula apicis superioris reliquis longiore crassioreque, iodo nou reagentes, polystichse. Asci obovoidei, membrana leviter incrassata apicem versus. Ad corticem arboris in Emsol Estate in Dominica. 2. C. (Byssophorum) cineritium (Ach.) Wain. Parmelia cineritia Ach. Syn. Lich. 201, secund. specim. orig. in herb. Ach. (conf. Wain. Etud. Bres. ii. 143), C. cHplosporum Nyl. Fl. 1886, 104 (Wright, Lich. Cub. n. 179, suppl. n. 3). Thallus crassitudine mediocris, sat laxe contextus, cinereo-glaucescens aut sordide albido-glaucescens, hypothallo laxissime contexto, infra thallum nigricante, ad ambitum cinerascente aut nigricante aut rarius subalbido. Pseudostromata elevata, rotundata aut diiformia, demum depresso-convexa, basi demum abrupta aut leviter constricta, extus et intus albida, gonidiis chroolepoideis superficiem versus instructa, circ. 2-0-5 millim. lata, hymenia numerosissima aut rarius pauciora continentia. Disci punctiformes, minutissimi, impressi, epruinosi. Perithecium latere tenue, basi sat tenue, fusco-fuligineum. Hypo- thecium albidum, tenue (dilute fuscescens in Wright, Lich. Cub.
