111 343. 
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 differunt. 
Ad corticem Arecae catechu prope Stationem navalem Lem Dan in 
insula Koh Chang (no. X). 
Trib. 4. Theloschisteae. 
i. Theloschistes (Norm.) Th. Fr. 
17. Th. flavicans (Sw.) Mill. Arg., Lich. Beitr. (FI. 1885), no. 932. 
F. glabra Wain., Etud. Lich. Brés. I (1890), p. 114. 
Ad corticem Rhizophorae conjugatae prope Lem Ngob (no. XXXII, 
XXXIV). Ster. 
Area: In America, Oceania, Asia tropica, Africa et in Europa occidentali 
Th, flavicans provenit. 
2. Placodium (DC.) Tul. 
18. PI. (subg. Blastenia) testaceorufum Wain., Lich. Nov. Rar. 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, nec CaCl,0,, nec KHO (CaCl,0,) 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 Pl. diplacio (Ach.) 
Wain., Lich. Antill. (Journ. of Bot. 1896), p. 7 (68). Ad subg. Bila- 
steniam etiam pertinent Lecidea endochromoides Nyl., Lich. Nov. Zel. 
(1888), p. 89, L. iodomma Nyl., |. c., et LD. coaddita Nyl., Lich. Jap., :p. 66. 
Ad corticem Rhizophorae prope Lem Ngob (no. XIV). 
Trib. 5. Buellieae. 
1. Physcia (Schreb.) Wain. 
Sect. 1. Euphyseia Th. Fr. 
19. Ph. erispa (Pers.) Nyl., Syn. Lich. (1858 —60), p. 143 (pr. p.). 
Var. mollescens (Nyl.) Wain., Etud. Lich. Brés. (1891), p. 144. 
Ph. mollescens Nyl. in Jard., Ess. Hist. Nat. Mendana (1857), p. 301. 
