Knicut.—Further Contributions to Lichen Flora of N.Z. 823 
Syn. Trypethelium pyrenuloides, Mont. (?) 
3 Cumingit, Fee. (?) 
i astroidea, Fee. (?) ‘*Haud non differt a 7. pyrenu- 
loide.”” (Mont.) 
Verrucaria pyrenastroides, Kn. (Trans. Linn. Soc.,” Vol. XXIII, 
Tab. 11, p. 100.) 
Astrothelium prostratum, Stirt. (‘ Journ. Linn. Soc.,” Vol. XIV., 
p. 473.) 
Astrothelium ochrocleistum, Nyl., in litt. 
Thallus effuse, glaucous, white, or greyish-olive, or ochraceus, rimulose. 
Apothecia convex, more or less veiled by thallus, at length uncovered, 
carbonaceous, cells 2-5, ostioles most frequently converging into a common 
opening ; paraphyses very slender, straight or somewhat twisted. Spores 
in elongated ascus, colourless, at length pale brown, fusiform, 5-8-septate 
—(rarely 8-4-septate)—more frequently murali-divided, or sometimes 
median cells divided by short longitudinal sept, length ‘038 mm., breadth 
‘012 mm. 
On bark of trees. 
Fig. 18. Section of apothecium, showing the ostioles of adjoining apothecio opening into 
common canal, magnified 14 diameters. 
18. a, b, and c, Ascus and spores, magnified 300 diameters. 
Verrucaria gemellipara, Knight. 
Thallus cerino-umbrinus tenuissimus glaber linea nigra limitatus. 
Apothecia parva parum prominula, ambitu applanato, dimidiatim nigra, 
basi amplificata, poro pertuso instructa, paraphysibus distinctis. Spore 
uniseptate in medio subconstricte incolores, longit. °017 mm., crassit. 
‘006 mm. 
Ad cortices arborum. 
Syn. V. cirewmpressa, Nyl., in litt. 
V. epidermidis v. gemellipara, Knight. 
Thallus yellowish-brown, very thin, smooth, limited by a dark line. 
Apothecia small, slightly prominent, flattened round the border, dimidiate, 
black, base enlarged, opening by a pore, paraphyses distinct. Spores: 
uniseptate, somewhat constricted in the middle, colourless, length ‘017 mm., 
crassit. °006 mm. 
On bark of trees. 
Fig’ 19. Section of apothecium magnified 14 diameters. 
19. a, Spores _ = 
