412 T. DiscoLiCHENES (Wainio). [Physcia 



10. Ph. reticulata Wain. sp. n. 



Thallus Hvido-albicans aut cinei-eo-pallescens, minute albido- 

 reticulatus et ambitum versus leviter pruinosus, KHO superne 

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

 pressis, pb^nis, contiguis et leviter confluentibiis, circ. 2 mm. latis, 

 centrum versus soraliis rotundatis, elevatis, minute sorediosis 

 instructus, subtus obscuratus, rhizinis brevibus simplicibus obscu- 

 ratis instructus. Apothecia incognita. Habitvi 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. 123&. 



3. PYXINE Fr. 



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

 Etud. Lich. Bres. I. p. 153. 



Var. subobscurascens Malme, Pyxin. p. 37. 



Thallus esorediatus, medulla passim materiam ochraceo-t'ul- 

 vescentem KHO dilute purpurascentem continens. Excipulum 

 materiam ochraceo-fulvescentem continens. Sporse long. 0"015 

 ad 0-019, crass. 0-005 ad 0-007 millim. Hypothecium KHO 

 non reagens. Epithecium olivaceum aut smaragdulum, KHO 

 violascens. Stratvxm corticale excipuli fuscescens, KHO violascens. 



HuiLLA. — Ad truncos vigentes Apodytis dimid/ata; 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 instructvis, medulla fulva, KHO 

 neque superne nee intus reagens, laciniis circ. 0-5 (passim etiam 1) 

 mm. latis, irregularibus subcuneatisque, continuis contiguisque, 

 radiantibus, planis, Isevigatis, subtus nigi-icantibus. Apothecia 

 parce visa (0-7 mm. lata), margine nigricante, baud diu thallode 

 instructa, disco nigi^o 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. Sporte fuscescentes, membrana inagqualiter 

 incrassata, in apicibus crassiore, vulgo l-septatae, pr. p. 2-septatae, 

 raro 3-septat8e, long. 0-014 ad 0-020, crass. 0005 ad 0-007 mm. 

 Affinis est Pyxini Meissneri Tuck. Hue verisimiliter pertinet 

 P. cocoes V. chrysantha Miill. 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 (Miill. Arg.) Wain., Lich. Ruwenz. p. 10. 



P. Meissneri v. endoleuca Miill. Arg., Lich. Beitr. (1879), n. 118, 

 GoLUNGO Ai/ro. — Ad truncos vigentes in sylvis primaevis prope 

 Sange. No. 120. Fert. 



