109 341 
12. *L. monodorae Wain. (Lich. Welw., 1901, p. 403). 
Ad corticem Arecae catechu prope Stationem navalem Lem Dan in 
insula Koh Chang (no. X). 
Ad hance subspeciem forsan pertinet LZ. achroella Nyl. in Cromb. 
Lich. Rodrigu. (1877), p. 439, at specimen orig. malum in herb. Nyl. 
vix certe determinari potest. Pycnoconidiis ,arcuatis, long. 0,015—0,018, 
crass. 0,0005 mm.‘ descripta est. 
Area: In zonis calidis Asiae et Africae obvenit. 
Trib. 3. Pertusarieae. 
1. Pertusaria DC. 
13. P. (Lecanorastrum) Bengalensis Wain., Lich. Nov. Rar. IV (Hed- 
wigia 1907), p. 169. 
Thallus sat tenuis, continuus aut demum rimosus, leviter verruculoso- 
inaequalis, glaucescens, nitidiusculus, neque KHO, nec CaCl,O, reagens 
(neque superne, nec intus), KHO (CaCl,0,) intus (zona gonidialis et 
pars superior medullae) intense violascens, superne minus distincte viola- 
scens, medulla jodo caerulescens. Pseudostromata 0,7—0,5 (—1) mmi. 
lata, elevata, subcylindrica aut vulgo demum basi plus minusve constricta, 
crebra, apice demum albo, parce soredioso, apothecium unum continentia 
aut rarius 2—4 confluentia. Discus neque KHO, nec CaCl,0, reagens, 
KHO (CaCl,0,) intense violascens. Sporae haud evolutae. Paraphyses 
ramoso-connexae. Gonidia cystococcacea. Affinis est P. subvaginatae 
Nyl., Fl. 1864, p. 619, 1866, p. 290 (Wain., Etud. Lich. Brés. I, p. 107), 
at reactione thalli ab ea differens. In specimine orig. P. subvaginatae 
in herb. Nyl. (no. 23508, coll. Lindig. no. 2658) medulla jodo -passim 
parce caerulescens. 
Ad corticem arboris prope Klong Sarlakpet in Koh Chang (no. I). 
14. P. (Porophora) sphaerulifera Wain., 1. c. 
Thallus sat tenuis, continuus, leviter inaequalis aut sat laevigatus, 
glaucescens, nitidus, CaCl,0, neque superne, nec intus reagens, KHO 
haud distincte reagens (aut intus demum dilutissime roseus), medulla jodo 
non reagente, esorediatus, isidiis destitutus. Pseudostromata globosa, diam. 
0,5—0,7 mm., basi constricta, albida, opaca, GaCl,0, non reagentia, 
KHO intus violascentia, extus dilute violascentia, nucleo haud evoluto. 
P. thelocarpoidem Nyl., Prodr. F]. Nov.-Gran. Addit., p. 546, in memoriam 
revocans. 
Ad rupem in silva prope cataractam in Koh Chang (no. XIII. 
15. P. pustulata (Ach.) Nyl., Enum. Gén. Lich. (1857), p. 116, 
Prodr. Lich. Gall. (1857), p. 194, Lich. Scand. (1861), p. 181, Lich. 
Jap. (1890), p. 51, Lich. Paris (1896), p. 72; Th. Fr., Lich. Scand. 
(1871), p. 313; Flag., Fl. Lich. Fr.-Comté (1886), p. 322; Oliv., Rev. 
Bot. (1890), p. 18; Harm., Cat. Lich. Lorr. (1894), p. 324; Darb., 
Deutsch. Pert. (Engl. Bot. Jahrb. 1897), p. 604 (Mull. Arg., Lich. Beitr., 
