23.07.2013 Views

LICHENS AND LICHEN. PARASITES

LICHENS AND LICHEN. PARASITES

LICHENS AND LICHEN. PARASITES

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Type: Kerguelen, Observatory Bay, A. E. Eaton (Venus Transit Exp.).<br />

Thallus ashy, rimose areolate, thin, R-; ecor ticate; algae protococcoicl, hypl~ae very slelltler,<br />

densely woven, including crystals of roclrs. Apothecia about 0.1 mm. in diameter, crowded,<br />

angular, coalescent ; parathecium carbonaceous, 30-35p thiclr, extending about 75p under the<br />

hypothecium, then narrowing to about 20p and extending inward and downward as fuliginous<br />

periclinal hyphae about 2p in diameter and disappearing in the medulla; hypothecium of slightly<br />

brownish subvertical loosely woven hyphae, becoming hyaline and periclinal in a compact layer<br />

abont 8p thick below the thecium; thecium about 58p tall; parapliyscs flexuous, slciicler, iiot ~ulnieroils,<br />

bralichii~g t~vice or thrice in the upper portioii, ultimate braliches terniiiiati~ig in a cla~atc,<br />

bl~ish~black cell which cuts off a spherical black cell; asci broadly clavate, 3540 X 9-12p, tip<br />

thickened, protoplast truncate, umbonate at first, 8-spored ; ascospores distichous, ellipsoidal,<br />

10-15 X 4-6,u, nucleus central with dense strands of protoplasm, giving the spore a %celled<br />

appearance, so that this species might be mistaken for n Catillr1,rk without careful examination.<br />

On rocks with Rhizocarpcm. kerguelense R. Mawsoni. Aspicilia. d:sjwnguenda, A. endochlara,<br />

Lecanora atrocaesiu, Blmtenia Aziberti and Buellia subplicata; also on old timber of Transit Venus<br />

Expedition hut, where the thallus is mostly inside the weathered wool cells, showing oiily as<br />

whitish patches.<br />

Kergnelen: Observatory Bay, Sta. 56 B.A.N.Z.A.R.E. B192-26, B195-1; Murray Island,<br />

B.A.N.Z.A.R.E. B2104 ; Royal Sound, R90-S.<br />

Heard Island : between Atlas Cove and Corinthian Bay, B.A.N.Z.A.R.E. B140-24.<br />

LFXIDEA URBANSKYANA Zahlbr.<br />

Lecdm Urbanskyam Zahlbr., Deutsche Sudpolar Exp., 8, 38; 1906.<br />

Type: Kerguelen, plateau of Stationberg, strand of Penguin Bay and valley between Station<br />

aiid Mittelberg, Werth (Deutsche Siidpolar Exp.).<br />

Thallus up to 100p thick, subareolate rimulose, leaden ashy (often stained by iron), I

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!