Knight. — On the Lichenographia of New Zealand. 403 



Ad cortices arborum. 



Obs.— Differs from Lecid. lecanorella, Nyl., in the spores being nearly 

 double the size, and the transverse cells much more numerous. The blast 

 cell at the apex of each paraphysis is remarkable. 



11. Lecidea (Sporastatia) desmaspora, sp. n. 



Thallus albo-cinereus farinaceus. Apothecia e thallo oriunda parva 

 (diam. 0-5 mm.) convexa, madefacta hemispherica, disco immarginato fusco 

 v. atro-fusco, hymenio tenui hyalino, hypothecio fusco crasso, excipulo pro- 

 prio (structura radiatim disposita) , in laminam proligeram continuato, paraphy- 

 sibus adglutinatis apice incoloratis. Sporse in ascis clavatis numerosissimoi 

 minutissimm globosce (diam. 0-001 mm.) catenate. 



Ad cortices arborum. 



12. Arthonia phymatodes, sp. n. 



Thallus tenuis cinereo-viridulus, matrice rimosa fissa, subtuberculosus, 

 tuberculis fertilibus convexis sparsis. Apothecia minuta (madefacta, diam. 

 0-3 mm.) e thalli tuberculis formata et marginata ; disco piano primitus 

 strata thallino tenui tecto, deinde partito vel omnino nudo vitreo-fuscescente- 

 que ; excipulo nullo, hypothecio simplici, paraphysibus paucis grosse clath- 

 rato-ramosis. Sporte in ascis ventricoso -clavatis nymphaBformes normaliter 

 5-cellulse, cellulo supremo ampliore, iucolores, longit. 0-02 mm., crassit. 

 0-008 mm. 



Ad cortices arborum. 



13. Opegrapha spodoelceina, sp. n. 



Thallus hyepoplodes cmereo-olivaceus tenuissimus continuus, intus goni- 

 diis perspicuis, strata hypothalliuo cum matrice mutata commisto. Apothecia 

 nigra superficialia linearia (longit. 1-5 mm.) simplicia intus dilute fusces- 

 centia, excipulo nigro, hypothecio fusco ; epithecio incolore, paraphysibus 

 ramosis. Sporte in ascis ovoideis incolores fusiformes 6-7-septatse, longit. 

 0-037 mm., crassit. 0-007 mm. 



Ad cortices arborum. 



Obs. — Quasi inter Opegrapham agelaoidem, Nyl., et spodopolia, Nyl., inter- 

 media, differens ab ilia thallo olivaceo, ab hac thallo continuo et hypothecio 

 fusco. 



14. Opegrapha stellata, sp. n. 



Thallus tenuis pallide ochro-cinereus Irevis continuus, linea atra limita- 

 tus. Apothecia lirelteformia, lirellis elongatis angustissimis flexuoso-contortis 

 stellatim ramosis, madefactis subinnatis apertis, hymenio incolore, excipulo atro 

 integro, paraphysibus clathrato-ramosis. Sporse in ascis subpyriformibus 

 niinutge incolores subfusiformes l-3-septatce, longit. 0-012 mm., crassit. 0-003 

 mm. 



Ad cortices arborum. 



