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DODGE--<strong><strong>LICHEN</strong>S</strong> <strong>AND</strong> <strong>LICHEN</strong> PARASITE8<br />
STEINERA WERTHII Zahlbr.<br />
~t~i~~erai T.Vorthii Zahlbr., Deutsche Siidpolar Exp. 8,43 ; 1906.<br />
Type : Icergnelen, Station Lalre, E. Werth (Deutsche Siidpolar Exp.).<br />
~ h ~ lup l ~ to s 3 cm. in diameter, placodiomorph, centre squamose-areolate and imbricate,<br />
,,lalgills racliately lobed, lobes cune~te, very convex, 2-3 mm. long and about 2 mm. wide, deep<br />
,,liYc. bI1ff to citriiie drab; about 500p thick, structure typical for the genus but fewer algal cells<br />
ill tile lo~~er portion; pseudocortex about 40p thick. Apothecia slightly urceolate when very<br />
YOI~~l~, so011 plane with a very narrow exciple, then convex and immarginate, disc dark brown to<br />
l,la,.k; aillphithecinm and parathecium laclring at maturity ; hypothecinm slightly brownish,<br />
10-12p tliiclr, of intricate hyphae; thecinm 100-110~ tall; paraphyses slender, dichotoinously<br />
l)I.anchetl once or twice below and densely so above, the cells moniliform to obovoid, 34p in<br />
diameter ; asci 8-spored, clavate 55 X 7-8p ; ascospora short ellip.wida1, 2-celled 8-10 X 5-7p.<br />
Spermogoilia ellipsoidal, 250 X 125p, wall hyaline, scarcely differentiated; spernmtiophores<br />
closely septate, densely branched, 35-55p tall; spermatia bacilliform or cylindric, 3-55 X lp.<br />
On rocks with Nicrogluena Ma.wsoni, Xainthopm*ina kerguelmuis, Pmna?*ia dichroa, Lecdea<br />
siiperjecta, Pertzuariao crozetica, Aspiciliopsis macrophthalma and Buellia tristiusczda.<br />
B246-3 is moribund, but seems to belong here in all observable characters except the spores<br />
which are 4-celled and about the size of those of S. gluucella.<br />
Crozet Archipelago : Possession Island, American Bay, B.A.N.Z.A.R.E B20-3.<br />
Kerguelen : Greenland Harbour, B.A.N.Z.AR.E. B177-20, B177-21; near Port Jeanne d'<br />
Arc, 1,600 ft., B.A.N.Z.A.R.E. B201; P Mt. Wyville Thompson, 1,000-1,500 ft., B.A.N.Z.A.R.E.<br />
B246-3.<br />
STEINERA NIGRA Dodge, sp. nov.<br />
Type : Kerguelen, Long Island, B.A.N.Z.A.R.E. B953-1.<br />
Thallus niger, areolatus, areolis plus minusve rotundatis, ca. 0- 5 mm. diametro ; ecorticatns ;<br />
algae filamentis verticalibus ca. 4~ diametro; hyphis tenuibus. Spermogoilia ampulliformia,<br />
ca. 3 5 altitudine, ~ 1 5 diametro ~ ; murns teiluissimus ; spermatiophorae dichotomae, ca. 4-6 X lp ;<br />
spermatia ca. 2-3 X 1-1.5p ellipsoidea.<br />
Thallus black, areolate, areoles more or less rounded, about 0.5 mm. in diameter; ecorticate;<br />
algae vertical, filaments about 4p in diameter, separated by slender medullary hyphae in a very<br />
firm gel. Apothecia not seen. Spermogonia flask-shaped, about 35p tall and 1 5 in ~ diameter;<br />
wall very thin ; spermatiophores dichotomous, about 6 6 X lp ; spermatia ellipsoidal, about<br />
2-3 X 1-1 -5~.<br />
Only a little material has beell seen, qrowing on dead Acaena between Parmelia kerguelensis?<br />
thalli. In the absence of apothecia the systematic position is somewhat uncertain, but the<br />
aiiatomy of the thallus and<br />
,<br />
spermogonia are similar to that of other species of Steinera, although<br />
the spermogonia are very much smaller and the spermatia are more like those of Lichiita.<br />
Herpelen : Royal Sound, Long Island, B.A.N.Z.A.R.E. B953-1.<br />
LICHINA Agardh.<br />
Lichina Agardh, Syn. Algar. Scand., xii, 9 ; 1817.<br />
Pygmaea Stackh., MBm. Soc. Nat. Moscou, 2, 60; 1809.<br />
Thamnn'dium Tuck. ap. Naegli, Algentyp., 19 ; 1860 no11 Link 1809.<br />
Type : Lichina was based on Fucus pygmaeus Lightf. and Lichen confinis Miill. Pygmaea<br />
was based on Lichen lichenoides, a renaming of F?tc?is pygmaew Lightf. So far as 1 can learn
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