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DODGE-LICELENS <strong>AND</strong> <strong>LICHEN</strong> <strong>PARASITES</strong> 222<br />
BLAST~IA Mass.<br />
Blasteq~ia M'ass., Atti I. R. 1st. Veneto II., 3, append., 101 ; 1852: Flora, 35, 575; 1852.<br />
Type : B. sinapisperhza (Lam.) Mass. For discnssion, see Dodge & Baker, Ann. Mo. Bot. Qard.:<br />
25, 611 ; 1938.<br />
Thallus crustose, uniform, continnous, powdery, grannlose or rimose, attached to the snbstratc<br />
by the hyphae of the prothallus, or of the medulla, homoeomerous or heteromerons ; ecorticate : algac<br />
protococcoid. Apothecia round, immersed or sessile; parathecinm well developed, very rarelj<br />
including a few algal cells; epithecium granular or powdery, K violet or purple; hypotheciurr<br />
hyaline; paraphyses simple, septate, capitate; asci 4-16-spored ; ascospores hyaline, ellipsoid, pola<br />
ribilocular. Spermogonia immersed, spherical ; spermatiophores septate; spermatia short cylin<br />
dric, straight.<br />
BLASTENIA AUBER.TI (Bouly de Lesdain) Dodge, comb. nov.<br />
Placodium Auberti Bonly de Lesdain, Ann. Crypt. Exot., 4, 102 ; 1931.<br />
Caloplaca (Basparrinia) Azibevti Zahlbr. cat. Lich. IJniv. 8, 585; 1932.<br />
Type: Kergnelen, Port Jean d'Arc. Aubert de la Rue 9.<br />
Thallus whitish, smooth, shining, verp thin, 2-2.5 min. in diameter to almost absent when grow<br />
ing aver Lecidea slibplunn ; algal layer 13-20p thick, partially discontinuons, cells protococcoic'<br />
7-8p in diameter ; medulla of loosely woven, gelified hyphae, 4p in diameter, eilclosiilg abnnclan<br />
rock crystals.<br />
Apothecia 0-3-0.4 mm. in diameter, gregarious to crowded, margin elevated, disc concavt<br />
cadmium orange or slightly darker; parathecium50-75p thick, becoming only lop thick above th<br />
algal layer, highly gelified, of radiating hpphae 4p in diameter, appearing almost pseudoparer<br />
chymato~~s, ending in a fastigiate cortex 10p thick, heavily incrusted with yellowish crystals; hypc<br />
thecium 18-20~ thick, of verp slender, deilsely woven, deeply staining, more or less vertict<br />
hyphae; thecium about 70p tall; paraphyses branched dichotomously once or twice above the asc<br />
branches slightly moniliform, ellding ill ellipsoidal cells not much thicker thaii the rest of tk<br />
paraphysis in the yellowish, epithecial gel with minute crystals; asci clavate, thin-wallet<br />
4M7 X 8~, 8-spored; ascospores subdistichous, ellipsoid, hyaline, polari-bilocular, 12 x 6p.<br />
I have referred our material to this species, with much hesitation, as I have been unable to sc<br />
the type, destroyed during the battle of Dnnkerque. Our thallus is nearly white instead of orang<br />
perhaps from being shaded. The spores are slightly smaller, perhaps not mature as they are sti<br />
in the ascus. It agrees well in other characters and is the only species with such small asci sec<br />
from this region.<br />
Growing with or over Lecidea s?ibpluna.<br />
Kerguelen: Observatory Bay, B.A.N.Z.A.R.E. B192-26. i<br />
1<br />
BLASTENIA JOIINSTONI Dodge, sp. nov.<br />
? Lecanora szibanicolor Nyl. in Crombie, Jour. Linn. Soc. Eot., 15, 184; 1876 : Phil. Trans. Ro<br />
Soc. [London], 168, 49; 1879 : Rept. Sci. Results Voy. "Challenger" Bot., 1, 2, 235; 1885 nc<br />
Nyl. in Crombie, Jour. Bot. Brit. For.. 14, 19 ; 1876 : Jour. Linn. Soc. Rot., 15, 172; 1876.<br />
? Callopisma sub?inicolor Miill.-Arg., Bot. Jahrb. [Engler] ,5, 137 ; 1885.<br />
Type : Crozct Archipelago, Possession Island, American Bay, B.A.N.Z.A.R.E. B20.<br />
Thallu~s tcnuis, subverru~eos~~s ru~gosusve, minute rimoso-areolatus, olivaceus, ca. 5 m 1<br />
diamctro, plus minusve concrescens; cortex ca. 25p crassitudine, gelifactns, cellulis exte~ I t
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