350 118 
colore sicut in speciminibus a Zw. lectis L. prasinae f. prasinizae Ny). 
Gonidia ad Cystococcum humicolam Naeg. pertinentia, simplicia, diam. 
0,010—0,008 mm., membrana modice incrassata, haud gelatinosa. Para- 
physes simplices aut furcato-ramosae, haud connexae, membrana gelati- 
noso-incrassata. Asci clavati. Haec species potius DL. globulosae Floerk., 
quam Bacidiis, est affinis. 
Ad truncos arborum in silva prope cataractam in insula Koh Chang 
(no. XXII). 
33. L. (Catillaria) unicolor Wain., 1. c. 
Thallus crustaceus, tenuis, subcontinuus, leviter verruculoso-inaequalis 
aut sat laevigatus, partim crebre rimulosus, albido-glaucescens, KHO lute- 
scens, CaCl,O, non reagens, KHO (CaCl,O,) lutescens, hypothallo in- 
distincto. Gonidia cystococcoidea. Apothecia adpressa, 0,5—0,7 mm. lata, 
disco plano, nigro aut fusco, nudo, margine nigro, crassitudine mediocri, 
demum saepe excluso. Excipulum basale albidum, KHO lutescens. Hy- 
pothecium albidum aut pallidum. Hymenium circ. 0,070 mm. crassum, 
jodo persistenter caerulescens. Epithecium dilute sordide violascens aut 
partim decoloratum, KHO non reagens. Sporae 8:nae, decolores, ellip- 
soideae aut ellipsoideo-oblongae, apicibus rotundatis, distichae, 1-septatae, 
halone nullo indutae, long. 0,014 —0,011, crass. 0,007—0,005 mm. 
Apothecia gonidiis destituta. Excipulum in margine ex hyphis ra- 
diantibus pachydermaticis formatum, superne aut extus cyanescens, inferne 
aut intus violaceam, KHO dilute sordideque olivaceum aut vix reagens, 
basi albidum et KHO lutescens. Hypothecium guttulas oleosas abundanter 
continens. Asci clavati, membrana apice modice incrassata. Paraphyses 
arcte cohaerentes, simplices, sat tenues, apice clavato-incrassatae. Gonidia 
diam. cire. 0,008 mm. — A L. tricolore (With.) Nyl. sporis crassioribus 
et apotheciis unicoloribus differt, at ei affinis. A L. atropurpurea (Schaer.) 
Th. Fr. thallo et reactione jodetica hymenii ceterisque notis differt. Habitu 
vix differt a Buellia disciformi. 
Ad corticem Arecae catechu prope Stationem navalem in insula Koh 
Chang (no. X). 
Trib. 8. Gyalecteae. 
1. Gyalecta (Ach.) Wain. 
34. G. lutea (Dicks.) Tuck., Lich. Hawai. (1867), p. 227, Syn. 
North Am. (1872), p. 218; Wain., Lich. Brés. II (1890), p. 71. Bia- 
torinopsis lutea Mill. Arg., Lich. Beitr. (Fl. 1881), no. 254, Graph. Féean. 
(1887), p. 5. 
Apothecia 0,3—0,4 mm. lata, disco pallido aut raro lutescenti-pallido, 
plano aut raro convexiusculo, margine tenui, integro aut verruculoso, 
albido aut raro pallido, discum haud superante. Perithecium in parte ex- 
teriore cellulis mediocribus. Hymenium circ. 0,040 mm. crassum, jodo 
dilute caerulescens, dein vinose rubens. Paraphyses apice leviter incrassatae. 
Sporae 8: nae, distichae, fusiformi-oblongae aut oblongae, apicibus obtusis 
aut rotundatis, 1-septatae, decolores, long. 0,007—0,008, crass. 0,002— 
0,003 mm. 
