— 128 — 



51. Cir. (sect. Thalloloma) concolor Nyl., Enum. Gen. Lich. (1857), 

 p. 129, Lich. Gey]. (1900), p. 22 (hb. Nyl., no. 6814). Ustalia Jung- 

 huhnii Mont, et V. d. Bosch, Lich. Jav. (1856), p. 51 (no. 6813 et 6854 

 in herb. Nyl.); Mont., Syllog. PI. Crypt. (1856), p. 352. Graphina 

 Boschiana Miill. Arg., Lich. Beitr. (Fl. 1882), no. 470 (Lich. Exot. Ill, 

 Hedwigia 1895, no. 138). Hand Gr. Junghuhnii Mont, et V. d. Bosch, 

 Lich. Jav. (1856), p. 45; Mont., Syllog. (1856), p. 347 (secund. Mull. 

 Arg., Lich. Beitr., no. 473). 



Thallus tenuis aut sat tenuis, sat laevigatus, continuus aut rimulosus, 

 albidus, opacus, KHO circa apothecia leviter flavescens, ceterum baud 

 reagens. Apothecia vulgo plus minusve aggregata, vulgo elongata, partim 

 ellipsoidea, long. circ. 7 — 0,5, latit. 0,5—0,2 mm., radiato-vel dendroideo- 

 ramosa vel varie ramosa aut subsimplicia, recta aut leviter flexuosa, thallo 

 immersa. Perithecium tenue, albidum, labiis apertis. Discus apertus, 

 planus, latit. 0,5 — 0,2 mm., lividus vel caesio-cinerascens, pruinosus, mar- 

 gine thallode saepe demum leviter elevato aut thallum baud superante, 

 fissura circumscisso, albido cinctus. Sporae solitariae, decolores, murales, 

 long. circ. 0,090 — 0,094, crass. 0,040 — 0,044 mm. 



Thallus linea hypotballina angusta nigricante limitatus. Discus thallo 

 leviter immersus aut vulgo thallum aequans. Hymenium circ. 0,120 mm. 

 crassum, baud oleosum, jodo leviter caerulescens. Epithecium olivaceum 

 aut fuscescens. Sporae ellipsoideae aut oblongae, apicibus rotundatis, 

 cellulis numerosissimis, jodo caeruleo-violascentes, balone fere nullo indutae. 



Ad corticem Arecae catechu prope Stationem navalem Lem Dan in 

 insula Koh Chang (no. X, XVll, XXI, XL, fig. 12). 



Area: In insulis tropicis Asiae lecta. 



52. dr. (sect. Thalloloma) fissiirinoidea (Nyl.) Wain. Gr. reniformis 

 var. fissiirinoidea Nyl., Enum. Gen. Lich. (1857), p. 129, Lich. Exot. 

 (Ann. Sc. Nat., 4 ser., Bot. XI, 1859), p. 228 (no. 6940 in herb. Nyl.). 



Thallus crassus aut sat crassus (circ. 1 — 0,2 mm.), sat laevigatus, 

 albidus aut partim glaucescens, opacus, KHO neque superne, nee intus 

 reagens aut dilutissime rubescens, jodo superne et intus intense caerule- 

 scens, fragilis, inferne strato hypothallino tenui nigro crebre contexto 

 totus obductus, demum substrate saltem passim laxe adhaerens. Apo- 

 thecia saepe aggregata aut approximata, vulgo elongata, pro parte ellip- 

 soidea, long. circ. 6 — 0,5 mm., lat. vulgo 0,5 — 0,25 mm. [aut demum 

 etiam latiora in Wright, Graph. Cub. no. 26], parce ramosa aut bene 

 dendroideo-ramosa aut simplicia, plus minusve flexuosa aut recta, thallo 

 immersa et demum plus minusve emergentia. Perithecium albidum. 

 Discus apertus, planus aut primum concavus, latit. vulgo 0,5 — 0,1 mm., 

 caesio-pallidus, pruinosus, margine thallode vulgo demum leviter elevato 

 [aut rarius demum bene elevato: in Wright, Graph. Cub. no. 26], discum 

 superante aut aequante, tenui [aut raro demum crasso: in Wright, Graph. 

 Cub. no. 26], albo aut thallo concolore cinctus. Sporae solitariae, de- 

 colores, murales, long. circ. 0,076 — 0,140, crass. 0,040—0,080 mm. 



Apothecia KHO rubescentia, basi sensim dilatata aut abrupta; labia 

 hiantia, amphithecio thallino tenui obducta. Hymenium circ. 0,200 mm. 



