LICHENS AND LICHEN. PARASITES

DODGE-LICHENS AND LICHEN PARASITES 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.