149 381 
lores, 3-septatae, loculis lenticularibus, long. circ. 0,020, crass. circ. 
0,006 mm. 
Ab hac Ps. Bengoana Wain., Catal. Welw. Afr. Pl. Il, Part II (1901), 
p. 457, apotheciis minoribus differt, et Ps. illota (Nyl.) Wain. (Verrucaria 
illota Nyl., Fl. 1876, p. 364, ,V. diluta* in Nyl., Lich. Antill., 1869, 
p. 24) secund. specim. orig. no. 418 in herb. Nyl. apotheciis majoribus, 
0,5—0,7 mm. latis et perithecio subgloboso vel leviter depresso, integro, 
basi tenuiore distinguitur. 
Secundum annotationem Nylanderi in herb. suo pycnoconidia in Ps. 
diluta (Wright, Pyr. Cub., no. 1383, 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, Oceaniae et Asiae 
crescit. 
4. Thelenella (Nyl.) Wain. 
92. Th. (subg. Euthelenella sect. Microglaena) interrupta Wain., Lich. 
Nov. Rar. IV (Hedwigia 1907), p. 180. 
Thallus crassitudine mediocris, stramineo-glaucescens, sat laevigatus 
aut verrucoso-inaequalis, leviter aut parum nitidus. Apothecia sparsa, 
simplicia, verrucas formantia 1,5—0,7 mm. latas, mammaeformes, basi vulgo ab- 
ruptas, haud constrictas, latere strato thallino thallo concolore obductas, vertice 
albido-pallescente, decorticato, opaco inaequalique, ostiolo nigricaute, 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, hypothallinis, 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. — Affinis Th. 
fuluae Wain., Cat. Welw. Afr. Pl. Il, Part Il (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 
Chang (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- 
