Beomj/ces.] 



L1CHENES. 137 



CRYPTOGAMIA LICHENES. 



I. Thallus adherent, crustaccous, amorphous. 



A. Apothccia more or less slipitate. 



a. Apothccia rounded, fleshy, with the stipes solid (mycince). 

 Pseudo-Fungi. 



FAM. I. B/EOMYCE.E. 



1. Beomyces. Pers. 



Thallus crustaceous, spreading, adnate. Apothccia (mycina) 

 orbicular, convex, capituliform, not bordered, sessile upon a 

 solid stipes Name ; (3*«05, small, and pi/x«, a Fungus or Mush- 

 room. This genus approaches the Fungi in many respects, even 

 in its odour. The podetia arc solid, fleshy and of the same tex- 

 ture as the apothecia; hence, and on account of the different 

 nature of the thallus, the species are widely separated from the 

 Cenomycece, near which they were arranged by Acharius, 



1. B. roseus, Pers. (rose-coloured Mushroom BcBOm\ 

 crn>t uniform granulated greenish- white, stipes very short 

 cylindrical, apothecia siihglohose wrinkled pale flesh-coloured. 

 Ach. Syn.p. 280. Hook. Scot. P. II. p. 65. Scheer. Uch. Hely. 

 p. Hi. //. 31. — Lichen Bceomyces, Linn. — E. Pot. t. 374. — Dili. 



Musc.t 14./. 1. 



Heaths, upon the ground, not unfrequent sir .las. K. Smith compares 

 the fructification of this to some minute UelveUa-, but the presence oi 

 a crust confirms the propriety of placing it among the Lichens. 



2. IS. rufus, Wahl. (brown Mushroom Bceomyces)} crust uni- 

 form granulated and pulverulent greenish-white, Btipes short 

 somewhat compressed, apothecia flattish at tin- top sometimes 

 conglomerate reddish-brown. Ach. Syn. />. l ,s <>. Book. Scot. 

 l\ //./>. 65. Bceomyces byssoides, Scheer. Lich. Helv.p. 17. //. S2. 

 —Lichen rufus, Hud*. Angl. p. 527. — A. byssoides, Linn,— -DM. 



MuSC. t. 14 I- 3, and 5. 



!;,., k 8| ( ,i,i wails and, less frequently, en the ground in sand} soil.— 

 Crust generallj thinner and more pulverulent than the preced 

 more Blender; apothecia smaller, more regularly orbicular, less wrinkled 



ami <>f a dull reddirou n colour. 



:;. B. placoph$Uus, Wahl. (thick-erusted I: •• crust or« 



bicular wrinkled and plicate subimbricated whitish and glauces- 

 cent formed in the circumference into rounded lobes and ere- 

 nated, stipes ;i little swollen compressed, apothecia slightl) 

 convex simple red-brown, Ach. Syn, p. 281. Meth. I.»h. r . 

 t. 7. /; i. 



