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DODGE-<strong><strong>LICHEN</strong>S</strong> <strong>AND</strong> <strong>LICHEN</strong> PARASITE8 65<br />
22-zsp in diameter, coastrictecl at the septa, cells barrel-shaped, mostly less than twice as lollg as<br />
l)road, spariiigly corticate with slender, liyaline hyphae ; apothecia not seen.<br />
011 earth among mosses ancl Parmeliae, Macquarie Island.<br />
Tlle above descriptioli is based 011 E.A.N.Z.A.R.E. material aiirl agrees well with hl'iiller-<br />
,\rg:l,l 'S (1escl.iption.<br />
>Iaccluarie lsland, iiortli end, B.A.N.Z.A.R.E. R540--2.<br />
Siiother species is present on a rock in our collections, old ailcl weathered, cell,., mostly collapsed<br />
all(] tlc~oicl of protoplasts, about 30-35 X 10-12/~.<br />
Macrluarie Tslaiid : hiphlaizds, B.A.N.Z.A.R.E. R534-1,13534-2.<br />
C~OENOQONIWM CONFERVOIDES Nyl.<br />
f'oo~rogoni~cnz co?zfervoicles Nyl. in Crombie, Jour. Linn. Soc. Rot., 16, 222; 1877. Rept. Sci.<br />
Results Voy. "Challeilger" Bot., 1, 2, 203; 1885.<br />
Type: Mexico, Orizaba, Fr. Miiller in Schimper IIerb.<br />
Reported from Marion Island, Moseley (Voy. " Challenger ") . Since this species has been<br />
differently interpreted by different authors, the specimei~ upon which this report was based should<br />
he restudied. While Trentepohlia is present as a symbiont in other families and is perhaps freeliving<br />
in our area, Coenogodlln~, ordiilarily has a much more tropical distribution.<br />
LICHINACEAE.<br />
Thallus crustose, ~uiiforin or with radiate lobes at the margin, squamose or dwarf frnticose,<br />
without hypothallus; homoeomerous or heteromerous with Rivul.ar&z algae. Apothecia terminal<br />
or superficial, varying from immersed perithecioid through urceolate to convex, inimarginate and<br />
~essile ; parathecium present or absent ; paraphyses simple ; asci 8-spored ; ascospores hyaKne,<br />
spherical to ellipsoid, thin-waled, unicellular to 4-celled.<br />
Thallus squamose to suhfoliose, determinate; apothecia sessile on the thallus, without parathecium ;<br />
algal filaments vertical in the upper portion of the thallus . . . . . . Steinera<br />
Thallus dwarf fruticose, algal chains confined to the outer portion of the branches leaving the axis<br />
free of algae, parallel to the long axis of the branches; apothecia immersed, perithecbid with<br />
thin, hyaliile paratheci~un . . . . . . . . . . . . Lichina<br />
STEINERA Zahlbr.<br />
Steinera Zahlbr., in Ellgler and Prantl, Die Nat. Pflanzenfam. I, l', 166 ; 1906. Deutsche Siidpolar<br />
Exp., 8, 41 ; 1906.<br />
Type : Anzph!dium molyBclopIam Nyl.<br />
Thallus placodiomorph, resembling Coccocarpia, not gelatinous, without rhizinae or hypothallus,<br />
homoeomerous,~,hyphae and algal filaments parallel to the substrate, curving upward to form<br />
a palisade above, pseudoparenchpmato~~s ; algae Caluthriz. Apothecia wholly adnate to the base ;<br />
paratheciuin not developed ; paraphyses simple, well developed ; asci 8-spored ; ascospores hyaline,<br />
ellipsoidal, very thin-walled, 2-4-celted. Spermatiophores septate ; spermatia cylindric, straight.<br />
Except for the algal symbiont, this genus seems nearer to the Peltigeraceae, somewhat similar<br />
to Solorina in appearance.<br />
Spermogonia about 25OP tall; ap~thecia<br />
present, thallus olive buff to dive brown.<br />
Disc red-brown, paraphyses fiIiform above, spores oblong ellipsoid, mostly 4-celled,<br />
16-21 X 7-QP .. . . . . . . . . . . 8. glawella<br />
Disc black, paraphyses moniliform above, spores ellipsoid, usually 2-celled, 8-10 X 5-7p<br />
S. Werthii<br />
Spermogonia about 35p tall ; apothecia unknown ; thallus blaclr . . . . S. nigra
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