medulla hyphis ramosis, 2p diametl-0, laxe cmtexta, ellln oolol~iis bacteriorum. Apothecia ad 0.7 mm. diametro, nigra, convexa, immargillata, basi col~stric*ti~; l)rir;rthecium 100-120r crassitudine, e cortice 35p crassitudine, hyphis verticaliblls sc*nlel vtll Ijis tliclhotomis, medullaque hyphis periclinalibus laxe coiitexta; hypothecium 3Sp crassitlltlillc., I~yol~is vchrticalibus non bene distincturn; thecium ca. 35p altitudille; paraphyses simpliacs v(hI sc*l~~c*l tlicllotomne, apicibus septatis; asci cylindrici, 25-27 X 6-ap, spice illcras~ato; ;~scosp()l.;~p f;~sti~ir~tit~~ (1ispositae, aciculares, multisepta% 15-18 X 2p, altero apice acutiore. Thallus white, granular to subsquainulose, coverillg sthvc*~-;~l scl. cm., partly overgrown by a young, sterile Blasteniaceous thallns; cortex aIIollt tl1ic.l;. 111ort' densely woven and partly decomposed, otherwise not differentiated frolrl thp III(VIIIII;I~~ l~.v~)l~ilc~; algal layer at least 100p thick, cells protococcoid, single, spherical to solllewhclt ;l~lgI(.cl. III)OII~ 10.u ill diameter; medulla of branched, loosely wove11 hyphae, about zp in (lialllcatpl., wit11 I)r~c.lcrirll colonies. Apothecia up to 0.7 mm. in diameter, so011 I)lac]
DODGE-<strong><strong>LICHEN</strong>S</strong> <strong>AND</strong> <strong>LICHEN</strong> <strong>PARASITES</strong> 111 protoplast truncate with ceiitral mammilla, thin-walled at maturity ; ascospores fasciculate, acicular, 15-18 X 2-2.5,~~ 4-6-locular, straight or very slightly curved. On granite. Some of the apothecial masses are elevated above the general surface on short stalks, almost suggesting Ba:eomyces.. Queen Mary Land, Mt. Barr Smith, ca. 4,000 ft., C. T. Harrisson, A.A.E. 10-1. BACIDIA KERQUELENSIS Dodge, sp. nov. Biatora rubella (Ehrh.) Rabh. v. inundata (Fr. ) Nyl. in Tuck., Bull. Torrey Rot. Club, 6, 59 ; 1875 : Bull. U.S. Nat. Mus., 3, 29; 1876 non in alio loco. Lecidacl inundata. Fr. in Crombie, Jour. Rot. Brit. For., 15, 106; 1877: Phil. Trans. Roy. Soc. . [London], 168, 50; 1879: Rept. Sci. Results Voy. "Challenger" Bot., 1, 2, 236; 1885. non in alio loco. Type : Kerguelen, Molloy Point, J. H. Kidder (U.S. Transit Venus Exp. on rock with ‘.‘Placedium bicoh sp. nov." [abundantly fertile specimen] in Tuckerman Herb. sheet 1777a at Farlow Herb). Thallus tenuissimus, continuus vel subrimuloso-areolatus obscure olivaceo-alutaceus ; cortex 17-18,~ crassitudine, gelifactus, hyphis dense contextus ; algae protococcoideae strato 3 5 crassitu- ~ dine, cellulis 4-Scr diametro; medulla hyphis tenuibus laxius contexta. Apothecia 0.1-0.15 mm. diametro, nigra immarginata, subsphaerica ; para thecium 45-50,~ crassitudine ad marginem tenuescens hyalinum, hyphis dichotomis radiantibus in gelatina flavo-viridi; hypothecium aeruginosum hyphis tenuibus periclinalibus gelifactis; thecium 60-65~ altitudine; paraphyses tenues, eseptatae, simplices, epithecio aeruginoso ; asci cylindrici, 4345 X 7-8,~, pachydermei ; ascosporae aciculares, multiseptatae, fasciculatae, subcontortae, 3046 X 1.5-2.5~. Thallus very thin, continuous or slightly rimulose areolate, dark olive-buff, verging toward wood-brown (type evidently monldy at one time) ; cortex 17-18~ thick, highly gelified, apparently of densely woven hyphae; algae protococcoid in layer about 35,~ thick, somewhat thicker immediately under the parathecium, cells 4-5~ in diameter; medulla more loosely woven, of slender hyphae. Apothecia 0.1-0-15 mm. in diameter, black, subspherical, immarginate; parathecium 45-50,~ thick, thinning to the margin, of radiating dichotomously branched, slender hyphae, imbedded in a thick, yellowish green gel, ending abruptly about 7 5 from ~ the margin of the hypothecium ; hypothecium deep green (aeruginous) of slender gelified, periclinal hyphae, resting on the parathecium at the margin and on a densely tangled mass of gelified hyphae, similar to the cortex in texture in the central portion; thecium 60-65,~ tall; paraphyses slender, eseptate, unbranched, imbedded in a stiff thecial gel, epithecium aeruginous ; asci cylindrical, 4345 X 7-8,~, thick-walled, the spores occupying a fusiform mass in the centre ; ascospores acicglar, many celled thin-walled, fasciculate, somewhat twisted in the ascus, 3046 X 1.5-2- 5,~. A thorough search of Tuckerman's herbarium failed to disclose any specimen labelled Bidtora rubella from Kerguelen. It seems likely that he studied this specimen but failed to label it. It is the only representative of this genus so far ei~countered from Kerguelen. Growing with Placopsis bicolw. Kerguelen : Molloy Point, J. H. Kidder (U.S. Transit Venus Exp.). TONINIA Mass. Toninia Mass., Ricerch. Autonom. Lich. Crost., 107 ; 1852. Tha!loidima sect. Ton.inia Miill.-Arg., MBm. Soc. Phys. Hist. Nat. Genbe, 16, 381 ; 1862. Scoleches sect. Toninia Stzbgr., Ber. Thatiqk. St. Gall. Naturw. Ges., 162; 1862.