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DODGE-<strong><strong>LICHEN</strong>S</strong> <strong>AND</strong> <strong>LICHEN</strong> <strong>PARASITES</strong> 103<br />
Growing with Steinera glaucella, Aspicilia endochlora, Aspiciliopsis n~ucrophthaln~u, and<br />
Bzcellia tristizcscula.<br />
Kerguelen : Greenl~nd Harbour, B.A.N.Z.A.R.E. El7737 ; Observatory Bay, E.A.N.Z.A.R.E.<br />
B192-27, B192-28, B192-29, B192-30; Molloy Point, J. H. Kidder (US. Transit of Venus Exp.<br />
in Tuclrerman Herb., sheet 1,452, on roclr with Steinera glaucella).<br />
MYKOBLASTUS STEPHANODES (Stirton j Doclge, comb. iiov. '<br />
Lecidea steplta.nodes Stirton in Crombie, Jour. Linn. Soc. Bot., 16, 221 ; 1878 : Phil. Trans. Roy.<br />
Soc. [London], 168, 51; 1879 : Itept. Sci. Results Voy. "Challenger" Bot. 1,2, 239; 1885.<br />
Type : Kerguelen, M'oseley (" Challenger" Exp.).<br />
Thallus very thin, continuous, whitish to dark olive-buff, indeterminate; apothecia black,<br />
superficial, about 1 mm. in diameter, margin thick, elevated, cracking in old specimens, disc plane,<br />
black; parathecium 220p thick above; thinning to about 150r thick below, fuliginous, the space<br />
under the hypothecium of coarse thick-walled loosely woven hyphae, dense and almost carbon-<br />
aceous in a layer just under the hypothccium; hypothecium of slender, densely woven, deeply stain-<br />
ing hyphae about 55r thick; thecium 170-180p tall; paraphyses slender, flexuous, dichotomously<br />
branched ; asci very thick-walled when young, 110 X 35r, 8-spored ; ascospores hyaline, unicellular,<br />
with a thick gelified wall, 38-56 X 21-34r.<br />
Growing with Verrucaria Werthii, Thrombiunt kerguelanzcnt, Steinera glaucella, Physma ker-<br />
gueleme, Aspiciliopsis macrophthalma and Placo psis bicdor.<br />
Kerguelen: Mainland opposite Murray Island, 1,000-1,500 ft. Sta. 62, B.A.N.Z.A.R.E.<br />
B246-1; near Port Jeanne d'Arc, 1,400 ft., B.A.N.Z.A.R.E. B200-1, B200-2.<br />
MYKOBLASTUS CA'AWBELLIANUS (Nyl.) Zahlbr.<br />
Mykoblastus campbelliunus (Nyl.) Zahlbr., Cat. Lich. Univ., 4, 3; 1926.<br />
Lecidea campbelliana Nyl., C. R. Acad. Sci., 83, 90 ; 1876.<br />
Type : Campbell Island, Filhol.<br />
Thallus subdeterminate, forming a white circle about 5 cm. in diameter over the surface of<br />
mosses; individual verrucae small, subisidioid, tips broken and appearing sorediate; algae proto-<br />
coccoid, cells 6-7p in diameter. Apothecia 0.5-0.6 mm. in diameter, solitary or crowded, appear-<br />
ing black; disc very convex, warm sepia or darker under a hand-lens, immarginate ; parathecium<br />
about 35p thick of slender hyphae scarcely differentiated from the paraphyses, imbedded in bluish<br />
gel; hypothecium hyaline; thecium about 150p tall; asci cylindric, thick-walled, %spored,<br />
70-75 X 22-25p ; ascospores 4448 X 22-26r, ellipsoidal, thick-walled, hyaline.<br />
Apparently several spores start to form, but soon abort until two seems the normal, number<br />
in our material, although one single-spored ascus was seen and another immature ascus in which<br />
one spore was beginning to abort. Nplander reports the spores 40-50 X 24-28r, slightly larger<br />
than ours, which would probably be the case if all but one of the spores aborted. Our material is<br />
much closer to this species than to any 2-spored species so far described from New Zealand.<br />
Growing over mosses.<br />
Macquarie Island : Highlands, Sta. 81c, B.A.N.Z.A.R.E. 534 B.<br />
BIATURINA Mass.<br />
Biatorina Mass., Ricerch. Autonom. Lich. Crost., 134 ; 1852.<br />
Patellmia sect. Biatorina Miill.-Arg., MBm. Soc. Phys. Hist. Nat. Genbve, 16,396; 1862.<br />
Catillaria sect. Biatorina Th. Fr., Lichenogr. Scand., 1, 564; 1874.
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