LICHENS AND LICHEN. PARASITES

234 B.A.N.Z. ANTARCTIC RESEARCH EXPEDITION
GASPARRINIA MACQUARIENSIS Dodge, sp, nov.
Type : Macyuarie Island, north end, B.A.N.Z.A.R.E. 540-116.
Thallns 1-1.5 em. diametro, 1 mm. crassitudine, lobis marginalibus, ca. 1 mm. diametro, 2-3
mm. longitudine, ramosis, laevibus, olivaceoflavus vel dilute flavido-olivaceus humectatus; cortex
11011 bene distinctum, ca. %lop crassitudine, fastigiatus; stratum algarum 470-500~ crassitudine,
protococcoicleum, cellnlis 8-lop diametro; nledulla 50-75p crassitudine, hyphis conglutinatis,
pachyclerineis, ca. 5~ diametro, intricate contexts. Apothecia ad 1 mm. diametro, margiiie crasso,
prominelite, dilute flavido-olivaceo, disco concavo, obscuriori ; amphithecium eadem structura nt
thallus; parathecium obconicum, ca. 400p altitudine, 25p crassitudine ad marginem thecii, hyphis
flabellatim ad 150p crassitudine ad apicem thecii disposjtis, hyphis periclinalibus conglutinatis;
hypotheci~un 3b50p crassitudine, hyphis leptodermeis, verticalibus ; thecium ca. lOOp altitudine;
paraphyses tenues, wllulis terminalibus clavatis,3p diametro; asci subcylindrici, apicibns inrrassatis,
protoplastis truncatis, 90 X 8p ; ascosporae submonostichae, late ellipsoideae, polari-bilorn
lares, locnlis hemisphaericis tubulo jnnctis. 11-14 X 7-8p. Spermogonia sphaerica, ca. 1001~
diametro, in centro strati algarum immersa, mnrus ca. lop crassitudine, hyphis laxis, periclinalibus,
2p diametro; spermatiophorae 15-20 X 2p, septatis, moniliformibus; spermatia bacilliformia,
34 X 0.5p.
Thallns 1-1-5p cm. in diameter, 1 mm. thick, marginal lobes about 1 mm. in cliameter, 2-3 mm.
long, brnnched, surface smooth, olive yellow to light yellowish olive when moist; cortex not clearly
differentiated, but the outer 8-lop of the medullary hyphae are incrusted with minute brownish
crystals and appear to form a fastigiate cortex; algal layer 475-500p thick, of loosely packed,
protococcoid cells, 8-10p in diameter, separated by strands of medullary tissue, abont 35p thicli
below (perhaps the fundaments of apothecia) ; medulla 50-75p thick, of conglutinate, intricately
woven, thick-walled hyphae about 5~ in diameter.
Bpothecja up to 1 mm. in diameter, margin very thick, prominent, light yellowish olive, disc
concave, darker; amphithecium a continuation of the thallns; parathecium obconic, abont 400p
tall, a continuation of the medulla, 25p thick at the edge of the thecium and spreading flabellately
upward to 150p thick kt the top of the thecium, of conglutinate, periclinal hyphae; hypotbecium
35-50p thick, of thin-walled, deeply staining, slender, vertical hyphae ; thecium abont 100p tall ;-%
paraphyses slender, cutting off a succession of clavate cells above, the upper about 3p in diameter;
asci sub-cylindric, tip thickened and protoplast truncate when young, about 90 X 8p; ascosporer
submonostichous, 11-14 X 74p, broadly ellipsoid, protoplasts hemispheric, united by an isthmus.
Spermogcnia spherical, about 100p in diameter, immersed in the centre of the algal layer!
wall scarcely differentiated, about lop thick, of loose, periclinal hyphae about 2p in diameter.
invaginating to partially separate the central cavity ; spermatiophores 15-20 X 2p, closely septate,
submoniliform; s~rmatia bacilliform, 3-4 X 0-5p.
Parasitized by Phaeospora. Ctasprriniae.
Macquarie Island, north end, B.A.N.ZA.R.E. B540-16, type: Featherbed Flat,
R.A.N.Z.A.R.E. B533-6.
GASPARHINIA HARRISSONI Dodge, sp. nov.
Type : Queen Mary Land ; ~ossession Nunatak, C. T. Harrisson, A.S.R. 77.
Thallus subfolio~s, margine lobato, lobis dichotomis, ca. 1 mm. longitudine, 0.3-0.4 mm.
latitndine, apicibus dichotomis, miniatus; cortex superior 45-50p crassitudine, psendoparenchy-
maticns, cellnlis sphaericis, 6-7p diametro; stratum algarum ca. 100p crassitudine, ad 200p sub