Cidoplaca micmlhalliiw (Wedd.) Zahlbr. Cat. Lich. Univ. 7:247. 

 1931. Lecanora microlhallind Wedd. Mem. Soc. Sci. Nat. Cher- 

 bourg 19:276. 1875. 



DESCRIPTION: Thallus citrine. 1-3 mm diameter, compnsedof 

 scattered lobes on the peripher>. scattered granules toward center, 

 forming patches on rocks, lobes convex. 1-2 times as long as 

 broad, tending toward granules near center of patches, Apothecia 

 yellow to pale orange. 0. 15-0.8 mm diameter, margins crenulate or 

 entire. Spores oblong-ellipsoid, polarilocular. isthmus ca. 0.3 the 

 length of the spores, 10-18 x 5-8/4m. 



Caloplaca microthallimi is distinguished by its minute granular 

 thallus forming patches up to 3 mm diameter and by its citrine 

 color Wade ( 1965) found it often associated with Verruairia muuni 

 in the British Isles. This also holds true for North America. This 

 species is not previously reported from North America. In Europe 

 this species is not commonly reported from the littoral zone. 



GENERAL DISTRIBUTION: Norway, Sweden, Finland. Den- 

 mark (Nordin 1972). 



NORTHEASTERN AMERICAN DISTRIBUTION: NOVA 

 SCOTIA: Digby Co.. Halifax Co., Cape Breton Co. NEW- 

 FOUNDLAND: West Coast Section. Northern Peninsula Section. 



Culopliua scopiilaris (Nyl.) Lett. Hedwegia 52:242. 1912. 

 Lecanom scopulahs Nyl. Flora 66: 105. 1883. 



DESCRIPTION: Thallus yellow orange to deep orange, radiate. 

 up to 1 .5 cm diameter, lobes narrow, 0.25-0.3 x 0.5-2.0 mm, con- 

 vex, apices crenulate or branched, center of thallus usually thickly 

 covered with apothecia. Apothecia orange, 0.5-0.75 mm diameter, 

 margins entire. Spores ellipsoid, polarilocular, 10-15 x 5-7/im. 

 isthmus ca. 0.3 the length of the spore. 



Caloplaca scopiilaris is unique among the littoral Caloplacae due 

 to its radiating thallus. Wade (1965) indicated that this species 

 resembles a small form of C. heppiana or C. thallincola but is dis- 

 tinquished by ellipsoid spores and the submoniliform nature of the 

 upper parts of the paraphyses. 



GENERAL DISTRIBUTION: Novaya Zemlya (Lynge 1928), 

 Norway, Sweden, Denmark (Nordin 1972), Finland (Rasanen 

 1927), Germany (Enchsen 1957), lapan (Ny lander 1890). 



NORTHEASTERN AMERICAN DISTRIBUTION: MAINE: 

 Cumberland Co., Hancock Co. NOVA SCOTIA: Halifax Co., Vic- 

 toria Co. NEWFOUNDLAND: West Coast Section, Avalon Sec- 

 tion. 



Caloplaca vcrniciilifera (Vain.) Zahlbr Cat. Lich. Univ. 

 7:272.1931. Placodium verniculifera Vaimo in Med. om Gron. 

 30:313. 1905. 



DESCRIPTION: Thallus orange or yellow, up to 3 cm diameter, 

 ordispersed, lobes 3-5 mm long, convex, centerof thallus areolate. 

 granular, isidia globose, spores oblong-ellipsoid, polarilocular, 

 isthmus ca. 0.3 length of spore, 9-14 x 4-6/im. 



Specimens of this species, previously unreported from North 

 America, were identified for the author by J. Poelt. It is easily con- 

 fused with Caloplaca granulosa which also has globose isidia but 



has smaller rosettes of 1-1.5 cm and shorter lobes of about 2 mm 

 (Poelt 1969). 



GENERAL DISTRIBUTION: Norway, Sweden. Finland, and 

 Siberia (Nordin 1972). 



NORTHEASTERN AMERICAN DISTRIBUTION: MAINE: 

 Sagadahoc Co., Hancock Co. NEWFOUNDLAND: West Coast 

 Section. 



Genus Lecanora 



Lecanora graiuii Magn. Ann. Cryptog. Exot. 5(1):21. 1932. 



DESCRIPTION: Thallus of irregular whitish-grey large gran- 

 ules. KOHh- yellow, medulla with small crystals. Apothecia con- 

 cave to plane, thalline margin regular to crenulate; hymenium dark 

 reddish-brown, I + dark blue; epithecium with small crystals, 

 insoluble in KOH. Spores eight per ascus, oblong-ovoid, 11-18 x 

 6-8.5/(111. 



Littleof this species was collected since it extends down only into 

 the upper limits of the littoral zone. The scant material collected 

 conforms to the original niatenal described from a log on a sea 

 beach by Magnusson (1932). 



GENERAL DISTRIBUTION: Washington (Magnuson 1932), 

 British Columbia (Brodo MSC). 



NORTHEASTERN AMERICAN DISTRIBUTION: MAINE: 

 Sagadahoc Co. NEW YORK: Suffolk Co. (Latham MSC). NOVA 

 SCOTIA: Shelburne Co. NEWFOUNDLAND: West Coast Sec- 

 tion. 



Genus Lichina 



Lichina confinis (O. Mull.) Ag. Sp. Algar. 1:105. 1821. Lichen 

 ConfinisO. Mull Icon. PI. Daniaw 5:5. 1872. 



DESCRIPTION: Thallus fmticose. branches rounded in cross 

 section, blackish-brown, phycobiont Calothrix. Ascocarps termi- 

 nal, globose, perithecoid, small ostioles. Spores colorless, simple 

 ovoid. 15-24 x 12-15/im. 



Lichina confinis. appearing as black tufts in the upper limits of 

 the littoral zone, is the only fmticose lichen found in the area 

 included in this treatment. 



GENERAL DISTRIBUTION: England (Ferry and Sheard 

 1969). Wales (Fletcher 1973b). Finland (Rasanen 1927), Germany 

 (Degelius 1939). Italy (Jatta 1909-191 1). Norway (Havaas MSC), 

 Sweden (Degalius MSC). 



NORTHEASTERN AMERICAN DISTRIBUTION: MASSA- 

 CHUSETTS: Essex Co. (Tuckerman 1882). NOVA SCOTIA: 

 Cape Breton Co. (Lamb 1954). NEWFOUNDLAND: East Coast 

 Section. Northern Peninsula Section. West Coast Section. 



Genus Stigmidium 



Stigmidiiim marinum (Deak.) Swins. Lichenologist 3:55. 1965. 

 Sagedoa marina Dcak. Ann. Mag. Nat. Hist. I. 12:40, pi. 4, f 

 13. 1954. 



16 



