456 
PROCEEDINGS OF SECTION D. 
12-15 /x longae, 5-6 /x latae, dissepimenta demum intense obfus- 
cata. Species liaec ob sporas 4-loculares et tballum fusco- 
macularem insigmta est. Sporae (copiose yisae) jam statu 
juniore hyalino more Microthelicd septatae sunt, nec Pyrenn- 
larum structurally offerunt. Habitus fere ut in obfuscata 
M. thelena (Ach.), Mali. Arg. — Corticola, Queensland: Shirley,, 
n. 1776 ; Bailey ad Ch. Knight, sub n. 318. 
Pyrenula. 
Sfcitzenb. Flechtensyst, p. 148. Species enuineratae omnes ad 
sectionein Ewpyrenulam, Miill. Arg., L. B., n. 890 pertinent. 
§ 1. Sporae 4-loculares. 
1°. Perithecium hemisphaericum, interne subalato-dilatatum, subtus 
incompletum aut tenuissimum. 
57. Pyrenula yelatior, Miill. Arg., L. B., n. 893 ; Trinity Bay: 
Sayer. J 
58. Pyrenula (s. Eupvrenula) oxyspora, Miill. Arg.; thallus cum 
epidermide mac u lam rufo-fuscam f ormans ; apothecia in sectione 
•jo mm. lata, deplanato-pyramidalia, semiemersa, supra nuda, 
nigra, paullo nitida, vertice nec urnbonata nec umbilicata ; 
perithecium dimidiatum v. basi tenuissime coiupletum, circum- 
circa alato-dilatatum ; sporae in ascis imbricatim 1-seriales, 
8-nae, fusiformes, utrinque obtuse acuminatae, 4-loculares, inter 
loculos leviter constrictae, circ. 18-23 /x longae et 7-8 /x latae.— 
A proxima cubana P. deplanata , Miill. Arg.; et costaricensi. 
P. lamprocorpa , Miill. Arg. ; sporis utrinque bene acutis dis- 
tinguitur. — Trinity Bay : Sayer. 
2°. Perithecium subeonico-hemisphaericum, subtus completum. 
59. Pyrenula segreoata, Miill. Arg., L. B., n. 1212; Yerrucaria 
aggregata f. segregate r, Nyl., Syn. Lich. Nov. Caledon., p. 89 ; 
Trinity Bay : Sayer. 
60. Pyrenula indusiata, Miill. Arg. ; thallus glauco-albidus, laevis- 
simus, oleoso-nitidus ; apothecia immersa, conico-hemisphaerica, 
vertice leviter emergentia et diu velamiue thallino subpellucido 
in centro nigro-perforato obtecta et dein glauco-nigricantia, in 
sectione vertical] mm. lata, apice velato angustiora; peri- 
thecium basi valide completum, subtus paullo convexum (basi 
subinde columelligerum) ; sporae subuni serialiter 8-nae, e 
hyalino deraiim fuscae, oblongo-ellipsoideae, utrinque obtusae, 
4-loculares, circ. 13-15 /x longae et 5-6 J /x latae. — Est proxima 
P. segregate * (Nyl.), Miill. Arg., L. B., n. 1212 ; a qua thallo et 
apotheciis mdusiatis differ!.— Corticola, Queensland : Shirley, 
n. 1878. 
61. Pyrenula circumrubens, Shirley, Lich. El. Queens., p. 179; 
Yerrucaria circumrubens , Nyl., Syn. Lich. Nov. Caled., p. 89 ; 
Queensland : ex Bailey, Pap. et Proceed, of the Eoy. Soc. of 
Tasmania, 1880. 
— V. RUBROTECTA; Yerrucaria circumrubens , Nyl., Syn. Lich. Nov. 
Caled., p. 89 ; v. rnbrotecia , Stirt., Addit. Lichfl. of Queensland, 
p. 9; Brisbane: Bailey, n. 124 ex. Stirt. l.c. 
