LICHENS AND LICHEN. PARASITES

B.A.N.Z. AXTARCTIC RESEARCH EXPEDITION
BI-ASTENIA WILSONI Dodge, nom. nov.
Amphilmn elegans v. a;tha!lina Wilson, M6m. Herb. Roissier, 18. 88; 1900.
Type : Kerguelen, Royal Sonnd, Robert FIall (Herb. Nat. Melbourne Bot. Gard.).
Thallus ulholly obsolete except for stipe of the apothecium.
Apothecia gregarious to crowded, np to 1 inm. in diameter, margill thick, elevatecl ochraceous
orange, disc very concave, rufons, both becoming greenish blaclr in old apothecia; stipe 0-4-0.5
mm. tall and about 0.3 mm. i11 diameter; cortex about 2OP thick, apparently fastigiate but so
heavily incrusted with yellowish browu crystals that its structure is riot clear; algal layer 55-75~
thick, cells 10-12~ in diameter, loosely paclred, with a few hyphae ; medulla of slender, interwoven,
gelified hyphae with narrow lumina. growing upward as periclinal hyphae to form a parathecium,
110-120~ thiclr, joining the cortex a short distance above the abrupt expansion of the stipe and
spreading fanwise to 185~ thick ; hypothecium about 3fiE* thick, of subvertical, thin-walled, deeply
staining hyphae; thecium 85-9OP tall; paraphyses slender, several times dichotomously branched
just above the asci, branches closely septate, not conspicuously moniliform and ending in the
epithecial gel filled with yellowish crystals ; asci 65 X lop, tips and upper portions thickened, protoplast
fusiform truncate when young, becoming thin-walled at maturity; 8-spored ; ascospores distichous,
hyaline, polari-bilocular, 15-1 6 X 5-6~.
We have used a new specific epithet since Blastenia keroplasla v. alhdlina occurs in the same
genus and might lead to confusion. The highly developed stipe of the apothecium serves to distinguish
this species from other athalline conditions in the group.
Kerguelen : hlt. Wyville Thompson, 1,000 -1,500 ft. B.A.N.Z.A.R.E. B246- 23, B246-24,
B246-25, B246-26 ; Royal Somid, Robert Hall, type (Nat. Herb., Melbonrne Bot. Gard.).
KUTTLINQERIA Trev.
Kzdtlingeria Trev., Riv. Period. Lav. Accarl. Padova, 5, 72 ; 1857.
Type : I{. Visiunii Trev. (Blastenia Visianica Mass.).
Thallus crustose, central portion granulose areolate, margin effigurate, lobate to subfoliose,
corticate ; algae protococcoid ; medulla filanlentous ; corticate below. Xpotliecia biatorine, adnate ;
parathecium well developed; hypothecium hyaline; paraphyses branched or simple, capitate; asci
clavate, 8-spored ; ascospores polari-bilocular at first, becoming uniseptste.
KUTTLINGERIA CROZETICA ( Zahlbr.) Dodge, comb. nov.
Caloplaca (Eucdoplaca) crozetica Zahlbr., Deuts2he Siidpolar Exp., 8,29 ; 1906.
? Lecanora murorzbm v. fareta Hook. f. & [Rab.], Crypt. Antarct., 229 ; 1845 : F1. Antarct., 2, 535 ;
1847.
? Cdoplaca elegum f. fa.rcta Th. Fr., Nyt Mag. Naturvidensk., 40, 208; 1902.
Amphiloma eleganlr Wilson, Mkm. Herb. Boissier, 18, 88 ; 1900, non aliorum.
Type : Crozet Archipelago, Possession Island, Werth (Deutsche Siidpolar Esp.) on volcanic
stones; L. murorunt v. farcta from Kerguelen, Christmas Harbour, J. D. Hooker (Voy. "Erebus
& Terror") on rocks near the sea.
'Thallus effigurate, up to 8 cm. in diameter, but often much smaller, only 1-2 cm. in diameter,
light cadmium to aniline yellow, centre yerrucose areolate and subfruticose, marginal lobes up Lo
5 mm. long, often shorter, about 2 mm., simple or dichotomous, tips rounded or forked, about 0.5
mm. in diameter, very convex, surface deeply rugose or punctate impressed, very svooth and
somewhat shining, closely applied to the surface of the rock where the basal layer is dark brown
.