389 150 
vexas aut conoideo-convexas formantia. Perithecium fuligineum, dimidiatum. 
Paraphyses ramoso-connexae. Asci subcylindrici. Sporae 8 : nae, distichae 
aut subdistichae, demum obscuratae aut pro parte decolores, ovoideae, 
1-septatae, septo fere in medio sporae aut cellula crassiore etiam paullo 
longiore, halone nullo indutae, long. 0,014—0,015, crass. 0,005—0,006 mm. 
Apothecia opaca. Perithecium lateribus acutis, at non attenuato-pro- 
ductis, basi deficiens, at columella centrali fuscescente instructum. Nucleus 
albidus, lateribus acutis, guttulas oleosas haud continens. Paraphyses 
tenues. Asci long. circ. 0,070, crass. 0,010 mm., apice membrana in- 
crassata. Sporae medio leviter constrictae, altero apice rotundato, altero 
obtuso. Thallus in hoc specimine evanescens, forsan gonidiis chroolepoi- 
deis instructus, at talia non satis distincte observavi. 
Ad corticem arboris prope cataractam meridiem versus a Statione 
navali Lem Dan in insula Koh Chang sitam (no. IV). 
Didymella Sacc. 
Genus ad fungos pertinens. 
D. cinchonae (Ach.) Wain., Etud. Lich. Brés. If (1890), p. 233, 
Lich. Antill. (Journ. of Bot. 1896), p. 86, Cat. Welw. Afr. Pl. I, Part Il 
(1901), p. 462. Verrucaria Ach., Syn. Lich. (1814), p. 90; Nyl., Lich. 
Nov.-Gran. ed. 2 (1863), p. 122; Hue, Lich. Exot. (1892), p. 296. Ar- 
thopyrenia Mill. Arg., Lich. Beitr. (FI. 1883), no. 615, Pyrenoc. Cub. 
(1885), p. 404, Pyrenoc. Féean. (1888), p. 26. Verrucaria prostans 
Mont., Cent. Pl. (Ann. Sc. Nat., 2 sér., Bot. XIX, 1843), p. 53, no. 81, 
Syll. Cr. (1856), p. 365; Nyl., Exp. Syn. Pyrenoc. (1858), p. 57. 
Thallus hypophloeodes, macula pallida aut partim subalbida indi- 
catus, linea nigricante hypothallina limitatus, gonidiis carens. Apothecia 
sparsa, rarissime parce confluentia, maculas rotundatas, nigras, 1—0,5 mm. 
latas, medio in verrucam hemisphaericam aut conoideam elevatas, for- 
mantia. Perithecium fuligineum, dimidiatum, latere attenuato-producto 
aut acutato. Nucleus depresso-hemisphaericus, albidus. Paraphyses ra- 
moso-connexae. Asci subcylindrici. Sporae 8:nae, distichae aut sub- 
distichae, decolores, ovoideo-oblongae aut oblongae, apicibus obtusis aut 
rotundatis, 1-septatae, septo fere in medio, long. 0,014—0,027, crass. 
0,006—0,008 mm. 
Apothecia nigra, strato tenuissimo substrati, tantum sub microscopio 
viso, obducta. Perithecium fuligineum, basi deficiens patensque, at in 
centro columella rudimentaria verrucaeformi instructum. Paraphyses sat 
numerosae. Asci long. circ. 0,090 mm., crass. circ. 0,012—0,014 mm. 
Sporae membrana modice incrassata, halone tenui interdum indutae, medio 
haud aut parum constrictae. 
Ad corticem Carapae obovatae in insula Koh Saket (no. XXXVIII). 
Area: In regionibus tropicis Americae, Oceaniae, Asiae et Africae crescit. 
