Knight, — On some New Zealand Lichens. 363 



longit. 0*017 mm., crassit. 0*01 mm. 



Ad saxa. 



Thallus crustaceous, citrine, areolate, areolae covering the brown hypothallus, 

 bordered by a dark line. Apothecia minute, black, bound by a citrine-coloured 

 thalline margin. Spores brown, ellipsoid, 1 -septate, 0*017 millim. long, 0*01 

 niillim. thick. 



17. Ascidium mdanosporum, sp. n. 



Thallus crustaceus, verrucosus, eborinus. Apothecmm hemisphericum, 

 apice depresso-umbilicatum. Peritheciuin nigrum, globosum, apice poro 

 pertusum. Nucleus paraphysibus tenuibus farctus. Thecse mono-spone. 

 Spora magna, fusiformis, multicellulosa vel muricata, demum fusca, opaca, 

 longit. 0*18 ad 0*25 mm., crassit. 0*0G5 ad 0*09 mm. 



Ad corticem arborum. 



Thallus crustaceous, verrucose, cream-coloured. Apothecium hemispherical, 

 depressed at the apex. Perithecium black, globose, opened by a pore at the 

 apex. Nucleus with slender paraphysis. Theca 1-spored. Spore large, fusiform, 

 many-celled or muricated, at length brown, opaque, 0*18 to 0*25 millim. long, 

 O-0G5 to 0-09 millim. thick. 



On bark of trees. 

 Differs from A. 



bein 



irregularly cellular, much broader, and at length quite opaque. {Vide Tab. 1, 

 fig. 20, Nyl. Prod. Flores Novo-Granatensis, Liehenes.) 



18. Melaspilea metabola, Nyl. Lich. Novae Caledoniae, p. 69. 



Thallus cinereus, diffracto 



Apothecia 



nigra vel fusca, mediocria, rotundato-lecideoidea (juniorapunctiformia), convexa, 



immarginata, intus pallido-incoloria. Sporce incolores, cylindraeeae, inferne 

 magis attenuate et curvatulee (ssepe in capillam product*), murali-divisse, 

 longit. 0-075 ad 0-1 mm., crassit. 0*01 mm. 



Ad cortices arborum. 



Thallus ashy, cracked or areolate, very thin. Apothecia black or brown, 

 medium size, rotundato-lecideoid — younger mere spots — convex, immarginate, 

 pale within. Spores colourless, cylindrical, curved, attenuated below, often 

 terminating in a hair, muriculate, 0-075 to 0*1 millim. long, 0-01 millim, 

 thick. 



On bark. 





uamaria 



Thallus cinereo-fuscus vel cinereo-rufescens, adpressus, tesselato-areolatus, 

 areolis in centro depressis, versus peripheriain laciniato-divisus, laciniis 

 pterygioideo-expansis. Ceplialodm cerina vel ochraceo-rufescentia, demum in 

 radios fissa, Auothecia ochro-badia, concava : excinuluni nronrium 



maroonem 



