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230 B.A.N.Z. ANTARCTIC RESEARCH EXPEDITION<br />
On roclrs with Phylloporinu. tessella.tu, Kzc!t!ingeria crozetica, Buellia subplicata and Rinodina<br />
aspicilinu.<br />
Kerguelen : Greenland Harbour, B.A.N.Z.A.R.E. B177-62, B204.<br />
YYRENODESMIA VTTELI,INEI,LA (Nj-1. ) Dodge, comb. nov.<br />
T,ecunora z'itelline!la Nyl. in Crombie, Jour. not. Rrit. For., 13, 334; 1875; Jour. Linn. Soc. Rot.,<br />
15, 184; 1876 : Phil. Trans. Roy. Soc. [London], 168, 49; 1879 : Rept. Sci. Results Voy.<br />
"Challenger" Bot., 1, 2, 235; 1885.<br />
Caloplaca vitellinella Zahlbr., Cat. Lich. Univ., 7, 200; 1930.<br />
L~canora ccrrtdelaria Hook. f. & Tayl.. Crypt. Antarct., 231 ; 1845; F1. Antarct., 2, 537; 1847 non<br />
Ach. 1810, fide Crombie, Jour. Bot. Brit. For., 15, 104; 1877.<br />
Type: Icerguelen, Observatory Bay and Swaill's Bay, A. E. Eaton (Venus Transit Esp.).<br />
Thallns indeterminate, thin, granular, deep chrome, cadmium yellow and darkening to raw<br />
sienna; algae protococcoid, cells spherical, up to 10p in diameter.<br />
Apothecia covering a granule, up to 0.2 nim. in diameter, margin broad, slightly elevated<br />
above the coilcave disc when young, becoming thin, with a plane or slightly convex disc at matnrity,<br />
lecanorine ; liypothecium 18-20p thick, of densely woven, slender, deeply staining, subvertical<br />
hyphae ; thecium about 75,~ tall ; paraphyses slender, dichotomously branched above the asci,<br />
branches of clavate cells, the ultimate branches more or less moniliform, heavily incrnsted with<br />
yellow.crystals, forming an epithecium about 20,~ thick; asci cylindric, thick-walled with a very<br />
thick tip and a protoplast with a long, slender mamilla when young, becomiilg clavate and thinwalled<br />
at maturity, 4045 X 10-12p, ascospores polari-biloc~~lar, hyaline, ellipsoid, 9-11 X 4-5p.<br />
Owing to the small size and abundant roclr crystals in the thallns, it has been impossible to<br />
secnre good sections; the above description is based on crushed apothecia. Its reference to this<br />
species is solnewhat uncertain, as Nylander's description ispery brief and in terms of Lecanorn<br />
vitellin~rla Xyl., which is also inadequately described. Nylander reports the spores somewhat<br />
smaller than we have found in our material, onr spores approaching the size given for L. vitdlirlula<br />
in the original description. None of the pertiiient types or authentic specimeils have bee11<br />
arailable. The whole family is sadly in need of monographic treatment.<br />
Growing over sterile lichen thalli and with Vevr.ucn.ria obfuscata, Thelidiunt praevalescens,<br />
Encephalograplza cerebrinella, Rhizocarpo n krr.gu elense, Lscanor-a atrocaesia, K.tcttlingeria<br />
crozet ica and Bzcel lia sub plicata.<br />
Kerguelen : Royal Sound, B.A.N.Z.A.R.E. R126-8, R126-25 ; Murray Island, B.A.N.Z.A.R.E.<br />
B210-1; Mt. Wyville Thompsop, B.A.N.Z.A.R. E. B246-2 ; Observatory Bay, B.A.N.Z.A.R.E.<br />
B192-63.<br />
Heard Island: between Atlas Cove and Corinthian Bay, B.A.N.Z.A.R.E. B140-58.<br />
PYRENODESMIA INCLINANS (Stirton) Dodge, comb. nov.<br />
Lecanorca incli7cans Stirton, Jour. Linn. Soc. Bot., 14, 463; 1875.<br />
Callopisrruc irtcli.lucnu Miill.-Arg., Bull. Herb. Boissier, 2 : app., 1, 51 ; 1894.<br />
Ilulop!aca incli7zans Hellb,, Bihang K. Svensk. 'VRtensk. Alrad. Handl., 21, 3, 68 ; 1896.<br />
Type: New Zealand, Wellington, John Buchanan.<br />
Thallns thin, whitish to citron green or lime green, rimulose areolate, margin very thin and<br />
whiter where spreading over rock, rather thicker, snblobate and darker where spreading over Rino-<br />
d&za thalli, 180-200p thick ; cortex not differentiated from medullary hyphae, the tips of which are
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