— 131 — 



thallo immersa. Perithecium fuligineum, integrum, labiis patentibus. Di- 

 scus apertus, concavus aut planus, lenuissime pruinosus lividusque aut 

 nudus fuscescensque, margine proprio concolore, tenuissimo saepe cinctus. 

 Sporae8:nae, fuscescentes, septis 3, long. 13 — 17, crass. 0,006 — 0,006 mm. 

 (loculis lenticularibus). 



Ad corlicem Arecae catechu prope Stationem navalem Lem Dan in 

 insula Koh Chang (no. X, XL, fig. 7). 



Area: In regionibus tropicis Americae, Africae et Asiae dislributa. 



56. Cr. (sect. Platygrainma) siibtigrina Wain., Lich. Nov. Rar. IV 

 (Hedwigia 1907), p. 177. 



Thallus tenuis, sat laevigatus, epiphloeodes, albidus, sat opacus aut 

 leviter nitidus, KHO primum lulescens, dein rubescens. Pseudostromata 

 hand distincta. Apotliecia aggregata confluentiaque el vulgo radiato-ra- 

 mosa, radiisque vulgo numerosis, circ. 0,2 — 0,15 mm. latis, flexuosis, 

 acervulos 5 — 2 mm. latos formantia, partim circumscissa, thallo immersa. 

 Perithecium tenuissimum, fuligineum, aut latere fuscescens basique palli- 

 dum, labiis patentibus. Discus apertus, concavus aut planus, tenuiter 

 pruinosus lividusque, immarginatus aut margine thallino tenui circumscisso 

 partim cinctus. Sporae 8 : nae, fuscescentes, septis 3, long. 0,010— 0,016, 

 crass. 0,005—0,006 mm. 



Thallus jodo passim leviter violascens, baud bene reagens, hypo- 

 thallus indistinctus. Hymenium circ. 0,080 mm. crassum, baud oleosum. 

 Epithecium fuscescens. Paraphyses simplices. Asci cylindrico-clavati, 

 membrana tenui, apice leviter incrassata. Sporae distichae, ellipsoideae, 

 apicibus rotundatis aut obtusis, loculis lenticularibus. — Graphis tricosula 

 (Nyl.) Wain. {Glyphis Nyl. apud Cromb., Lich. Ins. Rodrigu., Journ. of 

 Bot. 1877, p. 444) secund. specim. orig. (no. 7130 in herb. Nyl.) thallo 

 albido, tenuissimo, KHO lutescente deindeque fulvescente (nee rubescente) 

 et ramis paucis apotheciorum a planta nostra differt. Gr. tricosa Ach. 

 (Wain., Etud. Lich. Bres. II, p. 116) praesertim thallo glaucescente, tantum 

 ad apothecia KHO reagente ab ea recedit. 



Ad corticem Arecae catechu prope Stationem navalem Lem Dan in 

 insula Koh Chang (no. XXI). 



57. Gr. (sect. Platygramma) labyrinthica (Ach.) Wain., Catal. Welw. 

 Afr. PI. II, P. II (1901), p. 439. Glyphis Ach., Syn. Lich. (1814), p. 107; 

 Nyl., Enum. Gt§n. Lich. (1857), p. 134; Hue, Lich. Exot. (1892) p. 271 

 el 322. Sarcographa Mull. Arg., Graph. Feean. (1887), p. 62, Lich. 

 Beitr. (Fl. 1887), no. 1100 et 1102. 



Thallus tenuis, laevigatus, epiphloeodes, leviter nitidus, glaucescens 

 vel stramineo-glaucescens, KHO leviter rubescens. Pseudostromata di- 

 stincta, elevata, applanata, lateribus sensim dilatatis, exlus alba, opaca, 

 KHO primum lutescentia, dein leviter rubescentia. Apothecia in pseudo- 

 stromatibus crebre aggregata confluentiaque el seriata, humida rolundala 

 aut parcius etiam oblonga, sicca angulosa difformiaque et saepe fissuris 

 separata circumscissaque, long. circ. 0,1—0,3, latit. circ. 0,1 mm. Peri- 

 thecia fusco-fuliginea, Integra, basi crassiora, partim confluentia. Discus 



9* 



