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DODGE-<strong><strong>LICHEN</strong>S</strong> <strong>AND</strong> <strong>LICHEN</strong> <strong>PARASITES</strong><br />
CATILLARIA Mass.<br />
C'utilluviu Mass., Ricerch. Autonom. Lich. Crest., 78 ; 1852.<br />
Type: C. chalybaiu (Borr.) Mass. [C. l~utosu (Mont.) Mass.].<br />
Thallus crustose, endo- or epilithic, indeterminate or with effigurate margins; ecortjcatc: algae<br />
protococcoid. Apothecia round, immersed to sessile, with dark coloured or carbonaccw~~s para-<br />
thecium, without amphithecium, epitheciulu coiicave or convex, dark coloured ; hypothecium liyaline<br />
to black; paraphyses not 01- sometimes branched, tips capitate, free or immersed in a gel; asci<br />
8-spored; ascospores usually sinall, under 30p, hyaline, ellipsoid or elongate and bacilliform,<br />
straight or curved, finally %celled with a thiil wall and septum, without a sheath. Spermogonia<br />
ellipsoidal to flask-shaped, sperinatia straight or slightly curved.<br />
Catillaria busultica (IV1ull.-Arg.) Zahlbr., Deutsche Siidpolar Exp., 8, 51 ; 1906.<br />
Pa,talluria (Catillaria) busaltica Miill.-Arg., Bot. Jahrb. LEngler] , 4, 137 ; 1884.<br />
Type: Kerguelen, Betsy Cove, Naumann (Voy. "Gazelle").<br />
Thallus very thin, continuous or somewhat rimose, dark olive to subfuscous; algae protococcoid,<br />
cells 10-15,~ in diameter. Apothecia solitary, 0.2-0.6 mm. in diameter, sessile, black, margin<br />
rather thick, disc plane; parathecium carbonaceous, llOp thick at the margin to 210p below<br />
the hypothecium which is not clearly differentiated; thecium 120-130p tall; paraphyses slender,<br />
flexuous, eseptate, branching several times just above the asci and terminated by a large, dark<br />
brown, thick-walled, spherica.1 cell about 4r in diameter, thecial gel poorly developed ; asci clavate<br />
35 X 10-llp on long stalks 35140~ long, 8-spored ; ascospores hyaline, clearly 2-celled with deeply<br />
staining protoplasts and clear septum, slightly constricted in the centre, long ellipsoid to subfusiform,<br />
15-18 X 8-lop.<br />
Growing with, Pannaria dichroa.<br />
Crozet Archipelago : Possession Island, American Bay, B.A.N.Z.A.R.E. B20-5.<br />
CATILLARIA REROUELENSIS Dodge, sp. nov.<br />
Type : Kerguelen, Greenland Harbour, B.A.N.Z.A.R.E. B177-38.<br />
Thallus tenuis, albidus vel subgriseus, continuus, rare minute rimulosus, margine subnigri-<br />
cante et subdeterminatus sed non effiguratus; ecorticatus; algae protococcoideae, cellulis 7-+<br />
diametro. Apothecia sessilia, ad 1 mm. diiimetro, angularia irregulariaque, marginibus elevatis,<br />
discis concavis vel planis, nigris; parathecium carbonaceum, 75p crassitudine sub margine ad<br />
110-120p crassitudine sub hypothecio ; hypothecium hyalinum, 35p crassitudine hyphis tenuibus,<br />
dense contextum ; thecium 110-120p altitudine ; paraphyses tenues, eseptatae dichotome ramosae<br />
apicibus 2-cellularibus clavatis; asci 50-55 X 9-lop, clavati, leptodermatici; ascrosporae octonae,<br />
hyalinae, uniseptatae, ellipsoideae, 12-15 X 5-6p.<br />
Thallus thin, whitish to somewhat greyish, continuous, occasionally minutely rimulose, mar-<br />
gin somewhat darkened and determinate but not clearly effigurate; ecorticate; algae protococ-<br />
coid, cells 7-8p in diameter, with occasional included groups of chroococcoid cells and other<br />
foreign algae. Apothecia sessile, up to 1 mm. in diameter, angular and irregular, margin elevated,<br />
disc concave to plane, black; parathecium carbonaceous, 75p thick at the margin, of somewhat<br />
irregular thickness below the hypothecium, up to 110-120p; hypothecium hyaline, 35p thick, of<br />
slender densely woven hyphae; thecium ll(1-120p tall ; paraphyses slender, eseptate, dichotomously<br />
branched just above the asci and twice or thrice branched just below the clavate, 2-celled tips
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