- 105 — 



versus parce aut sat parce inspersus, ceterum laevigatus, medulla alba, 

 ambitum versus sublus late nudus, ceterum rhizinis tenuibus brevibus 

 crebris instructus, margine passim parcissime ciliato aut fere eciliato, 

 subtus fusco-niger, ambitum versus castaneu?, ad marginem anguste castaneo- 

 pallescens, WHO superne et intus intense lutescens, GaClaOo non reagens, 

 KHO(GaGl202) intus passim levissime obsolete aurantiacus aut passim 

 solum lutescens. Apothecia usque ad 5 mm. lata, cupuliformia, sub- 

 sessilia, imperforata, disco rufo aut testaceo. Excipulum granulis sore- 

 diorum et isidiis parcius inspersum, ceterum laevigatum. Sporae „ellip- 

 soideo-oblongae, long. 0,026—0,036, crass. 0,011 — 0,016 mm., membrana 

 crassiuscula". Pycnoconidia „subbifusiformia, long. 0,005 mm." (obser- 

 vante Nyl.). In rupe prope Le Paz in Bolivia anno 1891 legit M. Bang 

 (no. 13). Postea etiam ad „v. ciliatam DC." hoc specimen in herb. 

 Nyl. ductum est. 



3. P. latissima Fee, Ess. Crypt. Ecorc. Suppl. (1837), p. 119, 

 tab. XXXVIII, fig. 1; Hue, Lich. Extra-Eur. I (1901), p. 204. P. glaher- 

 rima Krempelh., Fl. 1869, p. 223. 



Var. cristifera (Tayl.) Hue, 1. c. p. 205. P. cristifera Tayl. in 

 Hook. Journ. of Bot. 1847, p. 1G5 (Mull. Arg., Lich. Beitr., Fl. 1888, 

 no. 1250). 



Thallus margine sorediosus, intus KHO lutescens et demum rube- 

 scens, GaCUOo non reagens, ciliis destitutus, subtus passim rhizinis in- 

 structus, ad ambitum late nudus. Ster. 



In trunco Rhizophorae ad flumen Klong Prao in insula Koh Ghang 

 (no. XX). 



Secundum specimen no. 35399 in herb. Nyl. var. cristifera apothe- 

 ciis instructa est cupuliformibus, breviter pedicellatis, imperforatis, disco 

 testaceo-rufo, sporis „long. 0,026 — 0,032 mm.; crassit. 0,015 — 0,018 mm.", 

 pycnoconidiis „sublageniformibus, long. 0,005 — 0,007 mm., crass. 0,001 mm." 

 (secund. annot. Nylanderi in specimine a Jardin lecto e loco incerto). 



Area: In zona aequinoctiali distributa. 



4. P. Claudelii (Harm.) Wain. P. perforata v. Claudelii Harm., 

 Gat. Lich. Lorr. (1894), p. 196; Hue, Gaus. Parm. (1898), p. 16. 



Thallus margine passim sorediosus, isidiis destitutus, ciliis marginali- 

 bus vulgo brevibus (circ. 0,3 — 2 mm. longis) parce instructus, superne 

 albidus aut glaucescenti-albidus, intus albus, subtus fuscescens aut am- 

 bitum versus castaneus testaceusve, corlice continuo, baud maculato, 

 subtus rhizinis passim crebris instructus, ad ambitum plus minusve late 

 aut in eodem specimine quoque solum anguste denudatus , medulla alba, 

 KHO superne lutescens, intus primo lutescens, dein rubescens, GaGUOg 

 non reagens. Apothecia ignota. Autonoma est species, in P. jjerforatam 

 Ach. baud transiens. Ad species inter Amphigymnias et Hypotrachynas 

 intermedias pertinet. 



Ad corticem Arecae catechu prope Stationem navalem Lem Dan in 

 insula Koh Ghang (no. X, XL, fig. 1). 



Area: Tantum in Europa et Asia hucusque observata. 



