412 I. DiscoLicHENES (Wainio). [Physcia 



10. Ph. reticulata Wain. sp. u. 



Thallus livido-albicans aut cinereo-pallescens, minute albido- 

 retieulatus et ambitum versus leviter pruinosus, KHO superne 

 flavescens, intus non reagens, irregnlariter laciniatus, laciniis ad- 

 pressis, planis, contiguis et leviter confluentibus, circ. 2 mm. latis, 

 centrum versus soraliis rotuudatis, elevatis, minute sorediosis 

 instructus, subtus obscuratus, rhizinis brevibus simplioibus obscu- 

 ratis instructus. Apothecia incognita. Habitu similis est 

 Ph. CBgialitce var. hypotrachynm 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. 123J. 



3. PYXINE Fr. 



1. P. Meissneri Tuck, Obs. Lich. i. (1860), p. 400 ; Wain., 

 Etud. Lich. Brfe. I. p. 153. 



Var. subobscurascens Malme, Pyxin. p. 37. 



Thallus esorediatus, medulla passim materiam ochraceo-ful- 

 vescentem KHO dilute purpurascentem continens. Excipulum 

 materiam ochraceo-fulvescentem continens. Sporse long. O'OIS 

 ad 0-019, crass. O'OOS ad 0-007 millim. Hypothecium KHO 

 non reagens. Epithecium olivaceum aut smaragdulutn, KHO 

 violascens. Stratum corticale excipuli fuscescens, KHO violascens. 



Hdilla. — Ad truncos vigentes Apodytis dimidiatce E. Mey. in sylvis 

 editis prope LopoUo (3800 ad 6500 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. 0-5 (passim etiam 1) 

 mm. latis, irregularibus subcuneatisque, continuis contiguisque, 

 radiantibus, planis, leevigatis, subtus nigricantibus. Apothecia 

 parce visa (0-7 mm. lata), margine nigricante, hand 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. Sporse fuscescentes, membrana insequaliter 

 incrassata, in apicibus crassiore, vulgo 1-septatse, pr. p. 2-septat8e, 

 raro 3-septatiB, long. 0-014 ad 0-020, crass. 0-005 ad 0-007 mm. 

 Affinis est Pyodni 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. endoleitca Miill. Arg., Lich. Beitr. (1879), n. 118. 

 G-OLDNGO Alto. — Ad truncos vigentes in sylvis primaevis prope 

 Sange. No. 120. Fert. 



