264 LICHKNES ANTILLARUM A W. R. ELLIOTT COLLECTI. 



2. A. (Euarthonia) substellata (Ach.) Nyl. A. confcrta (Fee) 

 Nyl. ; Miill. Arg. Graph. Feean. 55 ; Willey, Syn. Art'h. 12. Ad 

 corticem arboris in Anguilla (n. 74 et 77 pr, p.). Tballus iodo 

 Cfcrulescens. Hypothecium pallidum. Hymenium iodo persistenter 

 CiBrulescens, sporis vinose rubentibus. SporjB primum 3- et 4- 

 septatfe, demum 5-septatfe, long. 0-014-0022, crass. O'OOG-0-007 

 millim., ovoideo-oblongse, cellulis 2 medianis reliquis longioribns. 



3. A. (Arthoniopsis) microsticta, sp. n. Thallus tenuissimus, 

 continuus, Ifevigatus, glaucescens, gonidia phycopeltoidea continens. 

 Apothecia sat approximata, anguloso-rotundata aut pr. p. difformia, 

 diam. 0-25-0-1 millim., disco nigro aut fusco-nigricante, nudo, 

 piano, opaco. Hypothecium fuscescens. Hymenium 0-020-0-025 

 millim. crassum, parte superiore fuscescens, iodo vinose rubens. 

 Asci pyriformes, membrana sat tenui, Spora? SntB, decolores, 

 ovoideo-oblongffi aut oblong£e, l-septatsB, medio leviter constrict^e, 

 long. 0-008-0-010 millim., crass. 0-003-0-0035 millim., cellulis iieque 

 longis. Ad folia arboris in Dominica. A. leptospermati (Miill. Arg.) 

 Lich. Epiph. 17, et A. acinifonni Stirt. Lich. Leav. Amaz. 7, 

 affinis est. 



n. PYRENOLICHENES. 



1. Verrucaria. 



1. V. iETHioBOLizA Nyl. Fl. 1886, 322. Thallus tenuis, sub- 

 continuus aut rimoso-diffractus aut subdispersus, ca?sio-cinereus aut 

 Cfesio-glaucescens, hievigatus, sat opacus, hypothallo indistincto. 

 Apothecia crebra, verrucas hemisphaericas, 0'3-0"25 millim. latas, 

 atras, nitidulas, vertice convexas formantia. Perithecium fuligineum, 

 integrum. Nucleus hemisphiericus, iodo vinose rubens aut violasceus. 

 Paraphyses baud evolutfe. Periphyses breves, simplices, parti su- 

 perior! perithecii afiSxte. Asci clavati. Sporte 8nfe, ellipsoidefe aut 

 oblongaB aut oblique oblongaB, decolores, simplices, distichre, long. 

 0-018-0-018, crass. 0-009-0-005 millim., apicibus obtusis aut ro- 

 tundatis. In rupe ad Chateau Belair in St. Vincent, una cum 

 riacodio diplacioide. Forsan est variatio V. cBthiobolte Ach. (Wain. 

 Adj. Lich. Lapp. ii. 173). 



2. Staurothele. 



1. S. acarosporoides, sp. n. Thallus squamuloso-areolatus, 

 areolis circ. 1-2 millim. latis, difformibus, angulosis aut demum sub- 

 lobatis, adpressis, planiusculis, testaceo- aut cinereo-fuscescentibus, 

 sat opacis, subcontiguis aut subdispersis, crassitudine mediocribus. 

 Apothecia thallo immersa, apice nigricante baud aut leviter promi- 

 nente. Perithecium globosum, fusco-fuligineum, integrum. Para- 

 physes nullse. Periphyses in parte apicali perithecii numerosiB, breves. 

 Gelatina hymenialis iodo intense cjerulescens. Gonidia hymenialia 

 numerosissima, globosa aut ellipsoidea, simplicia, long. 0'002-0 003, 

 crass. 0-002-0-0015 millim., virescentia. Sporfe binre aut singulae, 

 fuscescentes, murales, long. 0-030-0-035, crass. 0'012-0-016 millim., 

 ellipsoidefe aut oblongae, apicibus rotundatis, cellulis numerosissimis. 

 Gonidia thalli pleurococcoidea, cellulis singulis aut binis, diam. 



