— Ill — 



p. 450, pseudostromata KHO intus leviter lutescentia (ex spec. orig. 

 no. 23456 in herb. NyL). Hae omnes plantae nostrae habitu subsimiles 

 sunt, at reactionibus ab ea diffemnt. 



Ad corticem Arecae catechu prope Stationem navalem Lem Dan in 

 insula Koh Chang (no. X). 



Trib. 4. Theloschisteae. 



1. Theloschistes (Norm.) Th. Fr. 



17. Th. flavicans (Sw.) Mull. Arg., Lich. Beitr. (Fl. 1885), no. 932. 

 F. glabra Wain., Etud. Lich. Bres. I (1890), p. 114. 



Ad corticem Rhizophorae conjugatae prope Lem Ngob (no. XXXIII, 

 XXXIV). Ster. 



Area: In America, Oceania, Asia tropica, Africa et in Europa occidental! 

 Th. flavicans pi'ovenit. 



2. Placodium (DC.) Tul. 



18. PI. (subg. Blastenia) testaceorufiim Wain., Lich. Nov, Bar. IV 

 (Hedwigia 1907), p. 170. 



Thallus crustaceus, effusus, tenuis, verrucoso vel verruculoso-areolatus 

 inaequalisve, areolis 0,3 — 0,1 mm. latis, majoribus parum elevatis, minoribus 

 verruculaeformibus, contiguis aut thallus sat continuus aut areolis passim 

 parce dispersis, glaucescenti-albidus aut stramineo-glaucescens, sat opacus, 

 neque KHO, nee GaClaOa, nee KHO (GaCUOa) reagens, hypothallo 

 nigricante limitatus. Apothecia sat crebra, 0,5 — 0,3 mm. lata, demum 

 convexa aut rarius persistenter planiuscula, adpressa, disco rufo aut rarius 

 rufo-pallescente, raro fusco, opaco, margine proprio, disco vulgo pallidiore 

 aut subconcolore, tenui, subintegro, persistente aut demum excluso. Hypo- 

 thecium albidum. Epithecium in lamina tenui rufescenti-pallidum, KHO 

 non reagens. Sporae 8:nae, orculaeformes aut ellipsoideae oblongaeve, 

 apicibus rotundatis, distichae, decolores, placodiomorphae, septo bene 

 incrassato, poro instructo, long. 0,015 — 0,012, crass. 0,006 — 0,007 mm. 



Gonidia ad Cystococcum humicolam pertinentia, diam. circ. 0,010—0,008 

 mm., simplicia, membrana sat tenui. Apothecia strato gonidioso imposita. 

 Perithecium ex cellulis minutis rotundatis aut ellipsoideis sat leptoderma- 

 ticis formatum, in lamina tenui pallidum aut albidum. Paraphyses tenues, 

 apice clavatae aut parum incrassatae. Hymenium circ. 0,080 — 0,120 mm. 

 crassum, jodo intense persistenter caerulescens. Affine PI. diplacio (Ach.) 

 Wain., Lich. Antill. (Journ. of Bot. 1896), p. 7 (68). Ad subg. Bla- 

 steniam etiam pertinent Lecidea endochromoides Nyl., Lich. Nov. Zel. 

 (1888), p. 89, L. iodomma Nyl., 1. c, et L. coaddita Nyl., Lich. Jap., p. 66. 



Ad corticem Rhizophorae prope Lem Ngob (no. XIV). 



Trib. 5. Biiellieae. 

 1. Physcia (Schreb.) Wain. 



Sect. 1. Euphyscia Th. Fr. 



19. Ph. crispa (Pers.) Nyl., Syn. Lich. (1858-60), p. 143 (pr. p.). 

 Var. inoliescens (Nyl.) Wain., Etud. Lich. Bres. (1891), p. 144. 



Ph. mollescens Nyl. in Jard., Ess. Hist. Nat. Mendana (1857), p. 301. 



