LICHENS AND LICHEN. PARASITES

90 U.A.N.Z. ANTAlCCTlC IIESEARCIL EXPEDITION
cells; true hypotheciurn 35p thick at the centre, thinning to about 20p thick at thc margin, more
deeply staining with hyphae somewhat more periclinal to the thecium; thecium 75p tall; paraphyses
about 2p in diameter forming a dense palisade, tips not thickened, epithecial granules dissolved
by ICOH, decolourized by lacto-phenol; asci clavate, tip somewhat thickened, protoplast
acuininate whe~ young, 8-spored, 54-60 X 11-12p; ascospores distichous, hyaline, ellipsoidal,
12-15 X 7-9p.
Growing with Lacid,eci intarsita, L. phaeostonza, L. sziperjecta, L. Warthii, Rhizocurpon Johnsto~li,
R. lcergziclense, Pe)'tzisu~.ic~ cinertrritc, P. szibperrintosa, Aspicilia endochloru, Lecavwra atrocitesia,
Aspiciliopsis ntuci.uphthulntu, Rucllia stibplicata, U. tristiusczila ai:d sterile thalli of Theliciiiiw,
praevalescens.
ICerguelen : upper end of Greeiilaild Harbour, B.A.N.Z.A.R.E. E177-22, B177-23, E204-5 ;
Observatory ' Bay, B.A.N.Z.A.R.E. B192-19 ; Murray Island, Sta. 60. B.A.N.Z.A.R.E. B210-2,
B212 (old).
Heard Island : between Atlas Cove and Corinthian Bay, B.A.N.Z.A.R.E. B140-13, B140-14,
B140-15, B140-16. L
LECIDEA WERTHII Zahlbr.
Lecideu PVerthii Zahlbr., Deutsche Siidpolar Exp., 8, 41; 1906.
Type : Kerguelen, Station Lake, Werth (Deutsche Siidpolar Exp.).
Thallus epilithic, thin, effused, irregularly and minutely rimulose, smooth, pale olive buff to
white, K yellow, then slo18-ly reddening, margill thin, bounded by deep plumbeous to black hypo-
thallus, cortex about 75p thick, a palisade of slender, septate hyphae with very minute crystals;
algal layer about 75p thick, protococcoid, cells up to 7p in diameter, somewhat angular between
the subvertical medullary hyphae, medulla more loosely woven, enclosing rock crystals. Apo-
thecia sessile, up to 1 mm. in diameter, solitary or in small groups, black, disc plane, nude, black,
margin thin, acute, inrolled, prominent, becoming less so in age, smooth to somewhat sinuate;
parathecium carbonaceous, 90p thick at the margin becoming thicker, up to 125p below and ex-
tending one-third the distance under the hypothecimn ; hypothecium 25p thick, of periclinal,
slender hyphae, slightly brownish and bending downward in the open space of the parathecium
to join the medulla; thecium 100-130p tall; paraphyses slender, septate, branching twice or
thrice dichotomously in the upper portion, becoming submoniliform, tips not thickened; asci
58-62 X 8-lop, tip thickened, protoplast long papillate; ascospores biseriate, hyaline, ellipsoid,
unicellular, 10-12 X 5-8p, with moderately thick walls.
Spermogonia minute, immersed, tip black, prominent; wall black, dimidiate; spermatio-
phores few, branched, subcylindric, much shorter than the fliform spermatia which are variously
curved and hamate, up to 35p long and scarcely lp in diameter fide Zahlbruckner.
Growing with Theliditim praevalescens, Encephulographa cerebrinella, Lecidea Auberti,
L. superjecta, and Bziellia subplicata.
Kerguelen: upper end of Greenland Harbour, B.A.N.Z.A.R.E. B177-14.
Heard Island: between Atlas Cove and Corinthian Bay, B.A.N.Z.A.R.E. B1404.
LECIDEA EATONI Crombie.
Lecidea Eatoni Crombie, Jour. Bot. Brit. For., 13, 334; 1875 : Jour. Linn. Soc. Bot., 15: 189 ;
1876 : Phil. Trans. Roy. Soc. [London], 168, 51 ; 1879 : Rept. Sci. Results Voy. "Challenger "
Rot., 1, 2, 238 ; 1885 : Wilson, MBm. Herb. Boissier, 18,88 ; 1900 ; Zahlbr. Deutsche Siidpolar
Exp., 8,39 ; 1903.