Knight.— On some New Zealand Lichens. 359 



isidiose; and (3) L. taitensis var. suhtuberculosa, with smoother thallus, the 

 disk and margin of the apothecium brownish-black, spores 0-033 mm. in 

 length, and hypotbecium pale yellow. 



t> 



L* marginijlexa the asei c 

 and bilocular. In L. fi 



muricated. 



cylindrical 



8c. Lecidea versicolor, Fee. 



Thallus albus, granulato-inaequalis vel granuloso-isidiosus. Apothecia 

 disco fusco, et margine pallido, tumido, nndulato. Sporce uniseptatre, ovatce, 

 incolores, longit. 0-05 mm., crassit. 0-023 mm. Hypotbecium album. 



Ad corticem arborum. 



Thallus white, granulosa unequal, or granular-isidiose. Apothecia with 

 brown disk, and pale tumid wavy margin. Spores 1-septate, ovate, colourless, 

 0-05 millim. long, 0*023 millim. thick. Hypotbecium white. 



9. Lecidea taitensis, Mont. 

 Thallus cineraceus vel eborinus, granulatus vel verrucoso-rugosus, passim 

 rimulosus. Apothecia disco fumeo, et margine fusco-atro, tumido, undulato. 

 Sporce pallido-lutese vel incolores, magnse, ovatse, incurviusculee, uniseptate, 

 longit. 0-075 mm., crassifc. 0-035 mm. Stratum hypothecii subhymeniale 

 incolore, perithecium fuscum. 



Ad corticem arborum. 



Thallus greyish or cream-coloured, granulate or warty rugose, here and 

 there rimulose. Apothecia greyish-brown, and margin brownish-black, 

 tumid, wavy. Spores pale yellow or colourless, large, ovate, little incurved, 

 1-septate, 0*075 millim. long, 0-035 millim. thick. Hymeneal stratum of 

 hypothecium colourless ; perithecium brown. 



On bark. 



10. Lecanora contigua, Ach., var. nieiospora, Ny]. 



Tlmllus albus vel cineraceus, areolatus, linea fusca limitatus. Apothecia 

 sessilia, convexa, fusco-nigra, immarginata. Sporce incolores, eJlipsoidese, 

 longit. 0*014 mm., crassit. 0-008 mm. Hypothecium fusco-niOTum. 



Ad saxa et supra terram argillaceam. 



dark 



Apothecia sessile, convex, brownish-black, immarginate. Spores colourless 

 ellipsoid, 0-014 millim. long, 0-008 millim. thick. Hypothecium brownish- 

 black. 



On rocks and clayey banks. 



11. Lecidea melanotropa, Nyl. 

 Tlmllus fractus, granuloso-insequalis vel granuloso-rimosus, in aliquot 



