— 148 — 



Apothecia crebre approximata , at maxima parte simplicia, parce 

 seriatim 2 vel plura connata. Pseudostromata nulla distincta. 



Ad corlicem arboris vigentis in capite septentrionali insulae Koli 

 Kong (no. XI). 



Area: Ps. ochroleuca in regionibus Iropicis Americae, Oceaniae, Asiae, 

 Africae crescit. 



90. Ps. (subg. Heterothelium sect. Homalotheciuin) endoxanthoides 



Wain., Lich. Nov. Rar. IV (Hedwigia 1907), p. 180. 



Thallus endophloeodes, albidus, laevigatas, leviter nitidus, linea hypo- 

 thallina nigricante limitatus. Apothecia sat approximata, simplicia, ele- 

 vata, verrucas circ. 0,3 (—0,25) mm. latas , hemisphaericas aut rarius 

 conoideo-hemisphaericas, atras, nudas, parum nitidas formantia, vertice 

 convexo aut minutissime subconoideo-umbonato. Perithecium depresso- 

 subglobosum aut elevato-hemisphaericum, fuligineum, integrum, latere ab- 

 rupto, baud attenuato-producto, basi tenui, fuliginea, applanata aut de- 

 presso-convexa. Nucleus depresso-subglobosus aut elevato-subhemispbaericus, 

 latere rotundato aut obtuso, materiam luteam, KHO non reagentem con- 

 tinens. Paraphyses ramoso-connexae. Asci subcylindrici. Sporae 8 : nae, 

 distichae, decolores, 3-septatae, loculis lenticularibus aut demum sphae- 

 roideis, long. 0,018—0,022, crass. 0,006—0,008 mm. 



Materia lutea in nucleo inclusa KHO baud violascens, at tantum 

 diluta. Sporae oblongae, altero apice rotundato, altero apice vulgo paulu- 

 lum attenuato obtusoque, halone nuUo indutae. — Ps. endoxanthae 

 Wain., Lich. Antill. (Journ. of Bot. 1896), p. 32 (292), et Ps. suhgre- 

 gariae Mull. Arg., Pyrenoc. Cub. (1885), p. 408, Wain., Etud. Lich. Bres. II 

 (1890), p. 213, subsimilis, at sporis minoribus et reactione nuclei cete- 

 risque notis ab iis differens. 



Ad corticem emortuum in silva prope cataractam in insula Koh 

 Chang (no. XVI). 



91. Ps. (subg. Heterothelium sect. 3. Hemithecium) diluta (Fee) Mull. 

 Arg., Lich. Beitr. (Fl. 1883), no. 602, Pyrenoc. Cub. (1885), p. 408, 

 Pyrenoc. Feean. (1888), p. 28. Verrucaria Fee, Ess. Crypt. Ecorc. Suppl. 

 (1837), p. 85; Nyl., Syn. Lich. Nov. Cal. (1868), p. 91; Hue, Lich. Exot. 

 (1892j, p. 294. 



Var. degenerans Wain. 



Thallus evanescens, albidus. Apothecia sat approximata, sim- 

 plicia, elevata, verrucas circ. 0,3.5—0,25 mm. latas, hemisphaericas 

 aut conoideo-hemisphaericas, atras, nudas, opacas aut parum niti- 

 das formantia, vertice convexo aut conoideo-convexo. Perithecium 

 hemisphaerlcum aut conoideo-hemisphaericum, fuligineum, dimidia- 

 tum, basi deficiens aut tenue, latere abrupto, baud attenuato-pro- 

 ducto. Nucleus hemisphaericus, latere rotundato, basi vulgo plana, 

 albidus. Paraphyses ramoso-connexae. Asci subcylindrici aut medio 

 leviter incrassati, membrana tenui. Sporae 8 : nae, distichae, deco- 



