338 106 
In P. urceolata v. nuda Mill. Arg., Lich. Beitr. (FJ. 1880), no. 183, 
secund. specim. orig. ad Petropolin in Brasilia lectum thallus margine 
sorediosus, superne rimulosus, subtus ambitum versus late nudus, centrum 
versus rhizinis brevibus crebris instructus, KHO superne flavescens, intus 
primo lutescens, dein rubescens. — In P. urceolata v. subcetrata Mill, 
Arg., Lich. Beitr. (Fl. 1883), no. 569, secund. specim. orig. ad Twofold 
Bay ab Hartmann lectum thallus subtus usque ad ambitum rhizinis in- 
structus, KHO superne lutescens, intus primo lutescens, dein rubescens, 
superne rimulosus, lacinulis sorediosis. Ad P. cetratam Ach. pertinet, 
at thallo subtus partim albido, partim nigricante a f. sorediifera Wain., 
Etud. Lich. Bres: I (1890), p. 40, differt. In P. urceolata v. cladonivide 
Mill. Arg., Lich. Beitr., no. 183, secund. specim. orig. no. 35 ad Petro- 
polin a Deventer lectum thallus sorediis isidisque destitutus, passim mar- 
gine ciliato, ceterum subtus late nudus albidusque aut partim interdum 
nigricans, lobis bene lacinulatis et partim etiam rotundatis, KHO superne 
flavescens, intus non reagens, GaCl,0, neque solo, nec KHO addito, intus 
reagens, Apothecia ciliis destituta. Observante cel. Zahlbr., Stud. Bras. 
Flecht. (Sitzungsber. K. Ak. Wiss. Wien 1902), p. 423, thallus KHO 
intus primo lutescens, dein rubescens, Non annotavi, anne alia species 
specimini originali immixta sit, at secundum Mil. Arg. crescit cum var. 
nuda, cujus reactio talis est, qualis a cel. Zahlbr. describitur. Ceterum 
reactio false observatur, nisi penna, quacum solutio reagens ad thallum 
applicatur, exacte perpurgata est. 
5. P. adspersa Wain., Lich. Nov. Rar. 1V (Hedwigia 1907), p. 168. 
Thallus superne albidus vel glaucescenti-albidus, subtus niger et am- 
bitum versus castaneus vel testaceo-pallescens, laciniis circ, 15—3 mm. 
latis, irregulariter lobatis, lobis apice rotundatis, integris aut rarius rotun- 
dato-crenatis, aut minutissime isidioideo-denticulatis, apicibus marginibusque 
laciniarum plus minusve recurvo-adscendentibus aut adpressis, eciliatus, 
esorediatus, praesertim medium versus isidiosus, isidiis tenuissimis brevis- 
simisque, medulla alba, subtus rhizinis brevibus passim instructus, ambi- 
tum versus late nudus, KHO superne et intus lutescens, CaCl,0, non 
reagens, at his reagentiis unitis intus rubescens. Habitu similis est P, 
coralloideae (Mey. & Flot.) Wain. (P. tinetorum Despr.), at reactionibus 
ab ea differens et tantum sterilis lecta. 
Ad corticem Rhizophorae prope Lem Ngob (no. XV et XXXIV). 
6. P. platyphyllina Wain., 1. c. 
Thallus superne albidus aut albido-glaucescens, intus albus, subtus 
niger aut ambitu interdum castaneus, laciniis circ. 20—5 mm. latis, ad- 
pressis, irregulariter lobatis, lobis rotundatis, basi vulgo angustatis, ad- 
pressis, esorediatus, isidiis destitutus, eciliatus, cortice continuo, subtus 
rhizinis brevibus passim instructus, ad ambitum late nudus, KHO superne 
et intus lutescens, addito CaCl,O, intus rubescens, CaCl,O, solo non 
reagens. Apothecia circ. 7—3 mm. lata, applanato-cupuliformia aut pr. p. 
applanata, imperforata, peltata, sessilia, disco rufo aut testaceo-rufescente, 
margine subintegro aut interdum leviter crenulato, vulgo leviter incurvo, 
eciliato, excipulo extus laevigato. Sporae 8:nae, distichae, ellipsoideae 
