— 149 — 



lores, 3-septatae, loculis lenticularibus, long. circ. 0,020, crass, circ. 

 0,006 mm. 



Ab hac Ps. Bengoana Wain., Gatal. Welw. Afr. PI. 11, Part II (1901), 

 p. 457, apotheciis minoribus differt, et Fs. illota (Nyl.) Wain. (Verrucaria 

 illota Nyl., Fl. 1876, p. 364, „ F. diluta" in Nyl., Lich. Antill., 1869, 

 p. 24) secund. specim. orig. no. 418 in herl). Nyl. apotheciis niajoribus, 

 0,5—0,7 mm. latis et perithecio subgloboso vel leviter depresso, inlegro, 

 basi tenuiore distinguitnr. 



Secundum annotationem Nylanderi in herb, suo pycnoconidia in Pn, 

 diluta (Wright, Pyr. Cub., no. 133, no. 1031 in herb. Nyl.) cylindrica, 

 long. 0,004, crass. 0,0005 mm. In specimine no. 1029 (e Nova Granata) 

 pycnoconidia long. 0,0045 mm. observante Nyl. 



Area: Ps. diluta in regionibus tropicis Americae, Oceanlae et Aslae 

 crescit. 



4. Thelenella (Nyl.) Wain. 



92. Th. (subg. Eiitbelenella sect. Microglaena) internipta Wain., Lich. 

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



Thallus crassitudine mediocris, stramineo-glaucescens, sat laevigatus 

 aut verrucoso-inaequalis, leviter aut parum nitidus. Apolhecia sparsa, 

 simplicia, verrucas formantia 1 ,5—0,7 mm. latas, mammaeformes, basi vulgo ab- 

 ruptas, baud constrictas, latere strato thailino thailo concolore obduclas, vertice 

 albido-pallescente, decorticato, opaco inaequalique, ostiojo nigricante, 0,2 mm. 

 lato, rarius paululum elevato. Perithecium subglobosum, fuligineum, sat 

 tenue. Nucleus albidus, gonidia hymenialia non continens, jodo non rea- 

 gens. Paraphyses parce evolutae, ramoso-connexae. Sporae 8 : nae, di- 

 stichae, decolores, murales, cellulis numerosissimis, oblongae, apicibus 

 rotundatis aut obtusis, jodo non reagentes. 



Thallus epiphloeodes et partim endophloeodes, maculis difformibus, 

 tenuioribus, albido-pallescentibus, hypolhallinis, pycnoconidangia fusconigra, 

 hemisphaerica, minutissima, imperfecte evoluta, continentibus interruptus, 

 gonidiis chroolepoideis, concatenatis, circ. 0,008 mm. crassis. Nucleus 

 guttulas oleosas continens. Asci subclavati, membrana sat tenui, long. 

 0,300, crass. 0,065 mm. Sporae halone nullo indutae, jodo fulvescentes, 

 juveniles pluriseptatae loculisque anguloso-lenticularibus, long. 0,130—0,140 

 mm., crass. 0,030— 0,036 mm. Thallus KHO leviter fulvescens. Apothecia 

 vertice decorticato pallescenteque, KHO intense fulvescente. — Afiinis Th. 

 fulvae Wain., Gat. Welw. Afr. PI. II, Part II (1901), p. 451, et habitu 

 ei subsimilis, at praesertim colore thalli et verrucarum ab ea differens. 



Ad corticem Arecae catechu prope Stationem navalem in insula Koh 

 Ghang (no. XVII). 



5. Microthelia (Koerb.) Wain. 



93. M. Asiatica Wain., 1. c. 



Thallus tenuissimus, hypophloeodes, evanescens , macula subalbida 

 indicatus. Apothecia sparsa, simplicia, verrucas 0,4 — 0,5 ( — 0,3) mm. 

 latas, depresso- aut conoideo-hemisphaericas, nigras, nudas, vertice con- 



