BXOMYCES. | BAOMYCETEI. 109 
the general habit, looking towards the Cladonias, must determine its 
place. The differences in the thallus and apothecia in some species are 
not sufficient to separate them generically, though they place them in 
different sections of the same genus. 
A. EUBAOMYCES Cromb. Grevillea, xv. p. 15.—Apothecia 
stipitate, solid or subarachnoid within, veiled or naked, immarginate. 
1 
Fig. 30. 
Baeomyces roseus Pers.—a. Vertical section of an apothecium (in dry state), 
x 30. 4. Theca and paraphysis, x 350. c. Spores, x 500. d. Section of 
a spermogone, x 30. ¢. Arthrosterigmata and spermatia, x 500. 
a. Apothecia solid within, naked. 
1. B. rufus DC. Fl. Fr. ii. (1805) p. 342.—Thallus effuse, thin- 
nish, leproso-granulose, greenish-white or glaucescent, the granules 
sometimes depressed (K+ yellow). Apothecia small or moderate, 
plane or convex, reddish- or brownish-flesh-coloured (K —); stipes 
moderate or short, subcompressed, whitish; spores 6—8ne, oblongo- 
ellipsoid, simple, 0,006-12 mm. long, 0,003-4 mm. thick; para- 
physes often slightly branched; hymenial gelatine not tinged with 
iodine—Gray, Nat. Arr. i. p. 413; Hook. FI. Scot. ii. p. 65; Sm. 
Eng. FI. v. p. 187; Cromb. Lich. Brit. p. 16; Leight. Lich. Fl. 
p. 52, ed. 3, p. 50.— Lichen rufus Huds. Fl. Ang]. (1762) p. 443 ; 
With. Arr. ed. 3, iv.p.14. Baomyces rupestris Pers., Tayl. in Mack. 
Fl. Hib. ii. p. 78. Boomyces lignorum Pers. Gray, Nat. Arr. i. 
p. 413, pro parte. Lichen byssoides, Linn. Mant. (1767) p. 133; 
Lightf. Fl. Scot. ii. p.808; Huds. Fl. Angl. ed. 2, p.527; Eng. Bot. 
