412 I. discolichenes (Wainio). [Physcia 
10. Ph. reticulata Wain. sp. n. 
Thallus livido-albicans aut cinereo-pallescens, minute albido- 
reticulatus et ambitum versus leviter pruinosus, KHO superne 
flavescens, intus non reagens, irregulariter laciniatus, laciniis ad- 
pressis, planis, contiguis et leviter confluentibus, circ. 2 mm. latis, 
centrum versus soraliis rotundatis, elevatis, minute sorediosis 
instructus, subtus obscuratus, rhizinis brevibus simplicibus obscu- 
ratis instructus. Ajjothecia incognita. Habitu similis est 
Ph. cegialitce var. hypotrachynce Wain. (Lich. Bras. Exs. n. 163), 
thallo rhizinis instructo cum ea congruens, at sorediis ab ea 
differens. 
Ambriz. — Ad truncos arborum in sylvis claris inter Ambriz et 
Mussulo. No. l2Zb. 
3. PYXINE Fr. 
1. P. Meissneri Tuck., Obs. Lich. i. (I860), p. 400; Wain., 
Etud. Lich. Bres. I. p. 153. 
Var. subobscurascens Malme, Pyxin. p. 37. 
Thallus esorediatus, medulla passim materiam ochraceo-ful- 
vescentem KHO dilute purpurascentem continens. Excipulum 
materiam ochraceo-f ulvescentem ' continens. Sporse long. - 015 
ad 0-019, crass. 0-005 ad 0-007 millim. Hypothecium KHO 
non reagens. Epithecium olivaceum aut smaragdulum, KHO 
violascens. Stratum corticale excipuli fuscescens, KHO violascens. 
Huii.la. — Ad truncos vigentes Apodytis dimidiates E. Mey. in sylvis 
editis prope Lopollo (3800 ad 5500 ped. s. m.). No. 8 pr. p. Fert. 
2. P. chrysantha Wain. 
Thallus sat tenuis, superne cinereo-glaucescens, epruinosus, 
soraliis minutis albidis aut fulvis instructus, medulla fulva, KHO 
neque superne nee intus reagens, laciniis circ. 05 (passim etiam 1) 
mm. latis, irregularibus subcuneatisque, continuis contiguisque, 
radiantibus, planis, lsevigatis, subtus nigricantibus. Apothecia 
parce visa (0 - 7 mm. lata), margine nigricante, haud diu thallode 
instructa, disco nigro nudo. Excipulum intus subalbidum, extus 
in margine fuligineum et KHO violascens, inferne dilute smarag- 
dulum, KHO non reagens. Hypothecium fuscescens, KHO non 
reagens. Epithecium olivaceo-smaragdulum, KHO solutionem 
violaceam effundens. Sporaa fuscescentes, membrana inaequaliter 
incrassata, in apicibus crassiore, vulgo 1-septatse, pr. p. 2-septatae, 
raro 3-septatse, long. 0'014 ad 0-020, crass. 0-005 ad 0-007 mm. 
Affinis est Pyxini Meissneri Tuck. Hue verisimiliter pertinet 
P. cocoes v. chrysantha Mull. Arg., Lich. Afr. Trop. (1890), p. 341, 
tantum sterilis descripta. 
Golungo Alto. — Ad corticem arboris in sylvis primaevis prope 
Sange. No. 178 pr. p. 
3. P. endoleuca (Mull. Arg.) Wain., Lich. Ruwenz. p. 10. 
P. Meissneri v. endoleuca Mull. Arg., Lich. Beitr. (1879), n. 118. 
Golungo Alto. — Ad truncos vigentes in sylvis primasvis prope 
Sange. No. 120. Fert. 
