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DODGE-<strong><strong>LICHEN</strong>S</strong> <strong>AND</strong> LIOHEN <strong>PARASITES</strong> 95<br />
broad, not enlarged, ending in the stiff epithecial gel, which is stained brownish; asci clavate, tip<br />
thickened, protoplast acute with a minute papilla; ascospores subdistichous, hyaline, ellipsoidal,<br />
8-11 X 5-7~.<br />
This species seems intermediate between Lecidea assentiens and L. iqitersita.<br />
Growing on Pertusaria. cineraria., P. arozelica, P. s.tibperrimosa, Aspieilia endochlorn ailcl<br />
Leaanora atrocaesia, on rocks with Xanthoporina kergtcelensis, Thelidizinz pra,evalescens, Steinera<br />
Werthii, Pannuria diclrroa., hecidea Aqiberti, L. intersita, I,. pha.eosto~sta and L. Werthii.<br />
Crozet Archipelago, Possession Island, American Bay, B.A.N.Z.A.R.E. B20-5.<br />
Kerguelen: Murray Island district, R.A.N.Z.A.R.E. RS30-7; Greenland Harbour,<br />
B.A.N.Z.A.R.E. B204-5; PoincarC Peninsula, R126-13.<br />
.Heard Island: between Atlas Cove and Corinthian Bay, B.A.N.Z.A.R.E. B1404.<br />
Lecidea phaeostoma Nyl. in Crombie, Jonr. Bot. Brit. For., 13, 334; 1875: Jour. Lhn. Soc. Bot.,<br />
15, 187; 1876: Phil. Trans. Roy. Soc. [London], 168, 50; 1879: Rept. Sci. Results Voy.<br />
"Challenger" Bot., 1, 2, 237 ; 1885 : Wilson, MCm. Herb. Boissier, 18, 88 ; 1900 : Zahlbr.,<br />
Deutsche Siidpolar Exp., 8, 34 ; 1906.<br />
Type : Kerguelen, Royal Sound, Observatory Bay, A. E. Eaton (Venns Transit Exp.).<br />
Thallus epilithic, thin, smooth, continuous or rimulose, plumbeous, whitish or ochraceous<br />
ashy, K yellowish, margin smooth, determinate, slightly blackened. Apothecia sessile, up to 1 mm.<br />
in diameter, round or somewhat angular by mutual pressure, margin black, shining, rather thick,<br />
inflexed, smooth at first then flexuous to crenulate, disc concave to nearly plane, ochraceous orange,<br />
pruinose, finally somewhat blackening; parathecium carbonaceous, 160-170~ thick, continuous<br />
under the hypothecium; hypothecium of vertical hyphae about 5OP thick, not sharply differen-<br />
tiated from the thecium above; thecium 100-130r tall; paraphyses very slender, flexuous, twice<br />
or thrice dichotomously branched just above the asci, nearly eseptate below, ultimate branches<br />
submoniliform, imbedded in the epithecial gel; asci cylindric clavate, tips not thickened, 8-spored,<br />
55 X 8-9~; ascospores ellipsoidal, hyaline, unicellular, 11-13 X 5-6~. Spermogonia minute,<br />
black, wall dimidiate, fuliginous, thin, spermatiophores fasciculate, subulate, shorter than the<br />
spermatia; spermatia variously curved, filiform, 14-18 X 0.5~.<br />
Growing with Cocrotrema kerguelensis, Lecanactis kergzrelensis, Ionaspis kergzcelensis, Pan-<br />
narin dichroa, Lecidea Auberli, L. Sntersita, IJ. szrperjecta, Rhizocarpon kergzcelense, Pertzisaria<br />
cineraria, P. subperrimosa, Aspicilia disjunguenda, Lecanora atrocaesia, Aspiciliopsis nzacroph-<br />
thalma, Plwopsis bicolm, Buellia subplicata and B. tristiuscula.<br />
Kerguelen : Royal Sound, B.A.N.Z.A.R.E. B90-6 ; Greenland Harbour, B.A.N.Z.A.R.E.<br />
B177-16, B177-17, 817733, B177-34, B177-35; Observatory Bay, B.A.N.Z.A.R.E. B192-21,<br />
B192-22 ; Murray Island, B.A.N.Z.A.R.E. B530-6, B530-7.<br />
Heard Island : between Atlas Cove and Corinthian Bay, B.A.N.Z.A.R.E. B140-11, R140-18,<br />
B140-19, R140-20, BILLO-21.<br />
Croxet Archipelago, Possession Island, American Bay, B.A.N.Z.A.R.E. B20-1.<br />
LECIDEA INTERSITA Nyl.<br />
Lecidea intersita Nyl. in Crombie, Jour. Linn. Soc. Bot., 15, 187; 1876 : Phil. Trans. SOC.<br />
[London],' 168, 50; 1879: Rept. Sci: Results Voy. "Challenger" Bot., 1, 2, 237; 1885:<br />
Zahlbr., Deutsche Siidpolar Exp,, 8, 37; 1906.
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