Pei-tusaria] i. discolichenes (Wainio). 405 



3. P. mierothelia Wain., sp. n. 



Thallus crassitudine mediocris (circ. 0'5 mm.), diffracto-areolatus 

 rimosu-sve, crebre verruculoso-riigulosus, flavido- vel stramineo- 

 g]aucescens, KHO intense lutescens, OaOl202 non reagens. 

 Medulla jodo levissime cserulescens. Apothecia circ. 05 mm. 

 lata, thallo immersa aut parum elevata, sorediosa, albida. Sporse 

 baud evolutae. 



HuiLLA (.3800 ad 5500 ped. s. m.). — Ad rupes prope cataractam de 

 Lopollo. No. 5. Ad rupes juxta cataractam props Fazenda do 

 Ferrao. No. 47. 



4. P. congesta Wain., sp. n. 



Thallus sat tenuis, leviter insequalis, sordide albidus, neque 

 KHO, nee OaCl202 reagens. Pseudostromata thallo concoloria, 

 circ. 0"8 ad 2 mm. lata, depresso-subglobosa, basi demum constricta, 

 apice convexo, leviter verrucoso-insequalia, ostiolis nigris, puncti- 

 formibus, pseudostroma sequantibus, conferta et partim contigua, 

 KHO neque extus nee intus reagentia, vulgo apothecia plura 

 continentia. Sporse 2n8e ad 8nse, ssepius 4n8e, long. 0"042 ad 

 0'075, crass. 0'020 ad 0025 mm., membrana circ. 0-004 mm. 

 crassa, stratis sequalibus, Isevigatis. A P. tuberoulifera Nyl. 

 sporis baud striatis et pseudostromatis verrucosis confertis et 

 magis irregularibus differt. 



GoLUNGO Alto. — Ad truncos Leguminoaarum in sylvis. No. 425. 



5. P. limbata Wain., Etud. Lich. Bres. I. p. 110. 



Ambriz. — Ad cortioem Spondiacese Ncumbi (i.e. Calesiam antiscor- 

 butica Hiern, Welw. No. 4450). No. 426. 



Sporss Snae, monostichse, long. 0-060 ad 0080, crass. 0'030 ad 

 0035 mm., intus lutese aut albids, membrana ()'006 mm. crassa, 

 stratis sequalibus, tevigatis. 



6. P. glaucocinerea Wain., sp. n. 



Thallus crassitudine mediocris, crebre verruculoso-rugulosus, 

 glauco-cinereus, KHO intus fulvesoens, extus non reagens. 

 Pseudostromata thallo concoloria, circ. 0'8 ad 15 mm. lata, 

 depresso-subglobosa, basi demum constricta, apice convexo aut 

 rarius levissime impresso, leviter verrucoso-inEequalia, ostiolis 

 nigricantibus, pseudostroma sequantibus aut leviter prominulis, 

 punctiformibus, crebra, KHO intus fulvescentia, extus baud 

 reagentia, apothecia 1 ad 5 continentia. Sporse 8nse, distichse, 

 long. 0-050 ad 0-100, crass. 0-020 ad 0028 mm., membrana intup 

 striata aut in eodem apothecio etiam stratis Isevigatis, exosporio 

 sat tenui, hand mucoso. 



GoLUNGO Alto. — Ad ramulos arboris Artocarpearum in sylvis 

 primasvis mentis Serra de Alta Queta. No. 434. 



7. P. crebra Wain., sp. n. 



Thallus sat tenuis, leviter insequalis, albidus vel glaucescenti- 

 albidus, rimosus, KHO non reagens. Pseudostromata 0'5 ad 

 0-8 mm. lata, depresso-subglobosa, basi constricta, apice vulgo 

 convexo et cinereo-pallido, ostiolis cinereis vel obscuris, puncti- 

 formibus, leviter prominentibus, conferta, KHO intus fulvescentia, 



VOL. II. 27 



