Knicut.—Further Contributions to Lichen Flora of N.Z. 327 
-at length brown, linear oblong, 1-septate, very often interruptedly quadri- 
nucleolate ; length, 02 mm. ; breadth, ‘006 mm. 
Fig. 22. (4), Section of apothecium magnified 14 diameters. 
22. (4), a, b, c, Ascus and spores ,, 300 a 
Thelotrema saxatilis, Knight. 
Thallus albidus y. cinereo-albidus continuus granulosus indeterminatus, 
tenuis. Apothecia normaliter globosa in verrucis thallinis rotundatis supra 
planis immersa, aperturis rotundatis depressis excipulo proprio instructa, 
paraphysibus capillaribus. Ascus monosporus. Sporae dilute fuscae 
tandem fusco-nigricantes fusiformes murali-divisae longit. ‘16 mm. ; crassit. 
‘088 mm. ‘ 
Ad saxa. 
Thallus whitish, or grey-white, continuous, granulose, indeterminate, 
thin. Apothecia normally globose, immersed in thalline verrucae, round, 
flat above; opening round, depressed ; furnished with a proper excipulum ; 
paraphyses capillary. Ascus with one spore. Spores dilute brown, at 
length brownish-black, fusiform, murali-divided, length, -16 mm. ; breadth, 
"038 mm. 
On rocks. 
Fig. 27. Section of apothecium magnified 14 diameters. 
27. a, Spores and paraphyses ,, 300 va 
Thelotrema monosporum, Nyl. v. patulwm, Knight. 
Thallus luteo-albus diffractus crassus. Apothecia verrucaeformia €X- 
‘eipulo duplici instructa, interiore membranaceo tandem lacero-dehiscente, 
nucleo madefacto expanso-discoideo, ascus monosporus interdum disporus 
(ex ea re spore minores). Spore fuscae fusiformes murali-divisae, longit. 
‘05 ad +10 mm, ; crassit. ‘015 ad ‘03 mm. 
Ad cortices arborum. 
Syn. Thelotrema monosporum VY. patulum, Nyl. in litt. 
Thallus cream colour, broken, thick. Apothecia verrucaeform, with a 
double excipulum—the interior membranaceous, at length torn, gaping— 
nucleus moistened expands with a broader dise. Aseus one-spored, some- 
times two-spored (then spores smaller). Spores brown fusiform, murali- 
divided, length, ‘05 ad -1 mm. ; breadth, 015 ad ‘03 mm. 
On bark of trees. 
Fig. 26. Section of apothecium magnified 26 diameters. 
26. a and b, Spores ” 240 ” 
