lilOHENES ANTILLARUM A W. R. ELLIOTT OOLLECTI, 35 



Trib. 3. LECANOREa:. 

 1. Lecanora. 



1. L. suBFuscA (L.) Ach. var. chlarotera (Nyl.) Wain, l^'.tud. 

 Br^s. i. 77. Ad corticem arboris in Emsol Estate in Dominica 

 (n. 537). 



2. L. cinereooarnea (Eschw.) Wain. I. c. 80. Ad corticem 

 arboris prope Kingstown in St. Vincent. 



3. L. stramineoalbida, sp.n. Thallus crustaceus, effusus, sat 

 tenuis, verruculoso-inajqualis, albidus aut sordide albidus, esoredi- 

 atus, KHO lutescens. Apotbecia mediocria, cire. 1-1"5 (-0'7) 

 millim. lata, adpressa, disco piano, stramineo, nudo, CaCl202 non 

 reagente, margine tenui, subcrenulato aut verruculoso-ruguloso, 

 discum plus minusve superante, tballo concolore. Hypothecium 

 albidum vel albido-pallescens, inferne pallescens et passim ful- 

 vescens, inferne KHO fulvorubescens. Hymenium iodo persistenter 

 Cferulescens. Spor^e 8nfe, ellipsoide^e, simplices, decolores, long. 

 0-015-0-013, crass. 0-009-0-006 millim. In stirpem L. suhfusca 

 pertinet, disco stramineo, neque pallido, dignota. Ad corticem 

 arboris in Eicbmond Valley in St. Vincent (n. 239). — Apotbecia 

 numerosa et sat crebra, demum saepe subangulosa. 



4. L. PROSECHA Acb. Licb. Univ. (1810) 346 (L. suhjmca v. pro- 

 secha Nyl. Addit. Nov. Granat, 543 ; Stizenb. De Lecan. suhfusca, 7). 

 Secundum specimen orig. ex ins. Bartbolomei in herb. Acb. ad 

 Aspicilias, neque ad stirpem L. suhfnsccB pertinet. Omnino similis 

 ab Elliott abundanter lecta est. Thallus crustaceus, crassitudine 

 mediocris (circ. 0*5 millim.), subcontinuus, rimulosus aut areolato- 

 rimulosus, stramineo-glaucescens aut rarius glaucescenti-albidus, 

 KHO lutescens et demum fulvescens, CaCl„02 non reagens, iodo non 

 reagens,hypotballo c^eruleonigricante s^epe passim anguste limitatus. 

 Apotbecia parva, 0-7-0-4 millim. lata, thallo immersa, immarginata, 

 disco piano aut demum couvexiusculo, nigro aut atro-sanguineo aut 

 sanguineo, nudo, thallum tequante aut demum leviter superante. 

 Epitheciumrubricoso-fuligineumautrubricosum, KHO non reagens. 

 Hypothecium pallidum. Sporae 8niB, simplices, decolores, oblonga 

 aut ellipsoideae, long. 0-014-0-009, crass. 0006-0-005 millim. Osti- 

 olum conceptaculi pycnoconidiorum macula cteruleofuliginea minuta 

 circumdata. Pycnoconidia filiformi-cylindrica, bene curvata, long. 

 0-022-0'018, crass. 0-0007 millim. — Lecanora suhimmersa (Fee) 

 Wain, liltud. Bres. i. (1890), 98, huic speciei proxime est affinis, 

 thallo CJBsio-albido aut albido, neque stramineo-glaucescente, ab ea 

 differens. Diversa est L. suhhnmersa Mllll. Arg. Licb. Exot. ii. 

 (1893), 124. 



f. (jranulifera Wain. Thallus passim sorediis irregularibus 

 granulosis instructus. Apotbecia nigra. Supra rupem ad Souffriere 

 (n. 138) et Bath Estate (n. 140) in Dominica et ad Fort Charlotte 

 in St. Vincent (n. 288). Ad banc formam L. prosecha Acb. in herb. 

 Ach. pertinet. — Hymenium iodo persistenter casrulescens. Hypo- 

 thallus albidus, demum fulvescens et KHO violascens. 



Var. RUBEscENs Wain. Thallus sorediis destitutus. Apotbecia 

 panguineo-rubescentia aut pro parte atrosanguinea. In f. (jramili- 



J> 2 



