Apotheoia moderate, plane or convex, th e thalline margin entire •
0 016 i o tZ o m ’ irregularly murali-multilooular;
7 3S>7 7 7 ' tW ek .-C rom b . Jo u rn . Hot. 1874
p. 336. Oollema Hddenhrandu Garov. Lioh. It. (1837) n 1 L ichen
saturninus 8m. Trans. Linn. Soo. i. (1791) p 84
i S i S s I ü s s
d is tric t i f “ upland mountainous
leaden-brown lobes crowded, somewhat imbricate, o r e n l l a t f or m f
Leight. Lich. PI p. 30, ed. 3, p. 8 8 .-M a llo tium D ^ g f ^ Í G r a v ’
a i m . a s f S f s
IV. p. 57.-B n t. Exs.: Cromb. n. 6; Dicks. Hort. Ste „ 24 ’
~f i j ppim., » d u.d,i.bü, , i a a . ,w ,Si„ „ . ¿ 7 .r ST ," B £ S :
Barmouth, AIerione’th s h ir e 7 H a Z d |S d T a Z h f f ”lfaZZ:^^^^^^^^^^
land. New Qallowav, Kirkcudbrightshire; Johnstone, A I o p , and Has
Hills Dumfriesshire ; Inverary and Appm, Argyleshire; The Trosachs,
Glen Lochay, and Glen Falloch, Perthshire ; Lochaber Inverness-sbire.
Eagle’s Nest, Cromaglown, Dinish, and Derrycmntry, Killarney, co. Kerry ;
Connemara, co. Galway.
P seu d o - g e n u s .
17 DENDRISCOCAULON Nyl. Flora, 1885, p. 299.—Thallus
fruticuloso, much brauohed, th e axis solid, branches covered towards
the apices with minutely divided furfuraceous laomiæ, containing
gonimia, whioh are more or loss scattered. Apothecia and spermogones
unknown.
This pseudo-genus, as indicated by Nylander (Flora, 1876, p. 578), is
only a leprarioid condition of “ Leptogium,” so th at we have both gommic
and gonidic leprarioid thalli. In internal structure the furfuraceous
laciniæ are somewhat like those of the subgenus Homodium.
1. D. bolacinum Nyl. Flora, 1885, p. 299.—Thallus cæspitoso,
erect, branches compressed, isabelliuo ; laciniæ crowded, leproso-
pulvinate, dark greenish.—Cromb. Grevillea, xv. p. 18.— Homodium
bolacinum Cromb. Journ. Linn. Soo., Bot. xvi. p. 228. Lepto-
giu.n bolacinum, Cromb. Journ. Bot. 1 8 16, p. 359. Collema atro-
cceruleum e. bolacinum Schær. (non Acb.) Enum. 1850, p. 249.
According to Nylander (Stiz. Lich. Hyperb. p. 6) this peculiar plant is
identical with Cornicularia XJmhaxienús Auersw., Iledwigia, 1869, p. 113,
and constitutes the glomeruli of Ricasolia glomulifera. I t resembles
Leptogium lophæum, and very rarely occurs growing independently.
Hah. Among mosses on old trees, rarely on rocks, in upland tracts.—
Bistr. As an independent plant very local and scarce in the S. Highlands
of Scotland.—B. M. ; Barcaldine, Argyleshire ; near Taymoutb, Perthshire.
18. COLLEMOPSIS Nyl. Flora, 1873, p. 17 (note), cfr. Cromb.
Journ. Bot. 1874, p. 332.—Thallus crustaceous, thin, granulato-
areolate, moro or less loosely affixed to th e substratum, glaucous-
green w ith in ; gonimic granules suhmoniliform. Apothecia uroeo-
lato-innate, small, the margin usually tumid and connivcnt; spores
8næ, ellipsoid, simple, colourless ; paraphyses usually simple, slender ;
hymenial gelatine bluish or wine-red w ith iodine ; spermogones with
simplish sterigmata, and oblong minute spermatia.
Nylander separated this genus from Pyrenopsis and placed it amongst
the Collemei because of the texture and colour of the thallus and the sub-
moniliform gonimia. I t embraces various genera of authors, as Pyrenopsis
Nyl. pro parte, Psorotichia Mass., Porocyphus Körb., &c. Of these, Psorotichiaj
had it not been informal (for it should evidently have been written
Tichospora)^ ought probably to have been preserved ” (Nyl. in litt.). Some
species very much resemble Pannularia, but are distinguished by the
absence of a hypothallus. Collemopsis evidently^ holds the same place
among the Collemacei as Pannularia among the Lichenacei.