. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. SYNALISSA.] COLLEMEI. 37 lular. Apothecia terminal, innate, lecanorino-endoearpoid, conco- lorous; spores ellipsoid or ovoid, usually Snse, occasionally nu- merous, simple, colourless ; Ly- me nial gelatine variously tinged with iodine. Spermogones ter- minal or subterminal, *ith simplisli sterigmata and oblong spermatia. Distinguished from Ompha- laria, wmcli d6es not occur in our islands, chiefly by the gonimic granules; these are in pairs between the thall
. A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum. Lichens. SYNALISSA.] COLLEMEI. 37 lular. Apothecia terminal, innate, lecanorino-endoearpoid, conco- lorous; spores ellipsoid or ovoid, usually Snse, occasionally nu- merous, simple, colourless ; Ly- me nial gelatine variously tinged with iodine. Spermogones ter- minal or subterminal, *ith simplisli sterigmata and oblong spermatia. Distinguished from Ompha- laria, wmcli d6es not occur in our islands, chiefly by the gonimic granules; these are in pairs between the thalline filaments or affixed to their branchlets. Only two species occur with us, rarely, and generally in poor condition. 1. S. symphorea Nyl. Syn. i. (1858) p. 94, t. 3. f. 2.— ThaUus frutioulose, fastigiately divided, opaque,blaek; branches short, rounded, erect, obtuse at the apices, sometimes only no- dulose. Apothecia minute, punctiformi - impressed, at Kg. 8. length dilated, subconcolorous, Synalissa symphorea Nyl.—a. Section of. thallua with an apotheoium, X 30. b. Section of a spermogone, X 30. c. Syngonimia between the filaments, X 350. d. G-onimia affixed to a raee- mosely divided filament, X 350. e. Spo- riferous theca with three paraphysea, X 350. /. Four spores, x 500. g. Sterigmata and spermatia, X 500. the thalline margin tumid; spores 8-24n8e, ellipsoid or spherical, 0,009-11 mm. long, 0,006-7 mm. thick ; hyinenial gelatine not tinged with iodine. —Mudd, Man. p. 35, t. 1. f. 2 : Cromb. Lich. Brit. p. 3 ; Leight. Lioh. Fl. p. 16, ed. 3, p. 13.—Synalissa vulgaris Thwaites, Ann. Mag. Nat. Hist. 1849, iii. p. 219. Collema symphureum DC. Fl. Fr. ii. (1805) p. 382, C. synalissa Ach., Tayl. in Mack. Fl. Hib. ii. p. 108. The thallus in our specimens is generally only noduliform. Elsewhere it often occurs amongst the squamules of Leoidea luHda, and further research may discover it in Britain also similarly associated. A reference to fit". 8 will show the peeidi
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectlichens, bookyear1894
