ACOTYLEDONS. LICHENS. Lepraria. 73 



DJV. IV. ATHALAMI. Lichens which have no apothecla, or 

 whose fructification we are not acquainted with. 



34. LEPRARIA. 



Universal receptacle a pulverulent spreading aclnate uniform 

 crust, rarely mixed with fibres, or filmy at the base. Partial 

 receptacle none ? 



1. L. chlorina, crust thick pulvinate bright sulphur-colour com- 

 posed of a dust-like substance collected into somewhat hairy 

 globules. Ach. Syn. Lich. p. 330. E. B. t. 2038. 



HAS. Scotland, Mr. Dicfcson, in E. B. On rocks behind the inn at 

 Aviemore, in Strathspey, Mr. Borrer and Hook. 



2. L.flava, crust spreading equal thin somewhat cracked bright 

 yellow composed of subglobose granules. Ach. Syn. Lich. 

 p. 330. .E. B.I. 1350. Byssus candelaris, Light/, p. 1005. 



HAB. Old pales, the bark of trees and wood of houses, common. 



3. L. Jolithus, crust spreading equal thin red composed of sub- 

 globose minute granules. E.B.t.247\. Turn. & Borr, 

 Lich. Brit. hied. p. 19. Byssus Jolithus, Linn. 



HAB. Rocks in damp shady situations at Luss, Mr. Turner and Hook. 



This diffuses at all times, even when dry, a faint violet-like smell, 

 which, together with its red colour, suffices to distinguish it. It is 

 this which tinges the stones at Holywell, in Flintshire, and there 

 is a superstitious notion that they are sprinkled with the blood of 

 St. Winifred. 



4. L. ceruginosa, light verdigrise green, crust minutely fibrous 

 branched covered with numerous minute clustered granules. 

 E. B. t. 2182. Byssus ceruginosa, Huds. Angl. (according 

 to Sm.) Conferva pulveria, Dillw. Conf. p. 78 of the Synop- 

 sis, t. D. Suppl. 



HAB. Pillars of Rosslyn Chapel, Sir Jas. E. Smith. 



5. L. latebrarum, grey? crust fibrous forming dense cushions, 

 granules in small round clusters. Ach. Syn. Lich. p. 331, 

 E. B. f.2147. 



HAB. Rock at the Hermitage at Blackford, as well as on several rocks 



in Rivelston Wood, Smith. 

 Appears in its structure, from the E. B. figure, exactly to resemble 



the former species. 



6. L. botryoides, crust thin spreading granulate- pulverulent green 

 somewhat gelatinous, granules collected into a somewhat beaded 

 form and clustered. Ach. Syn. Lich. p. 331. E. B. t. 2148. 

 Byssus botryoides, Lightf. p. 1006. 



HAB. Trunks of trees, posts, rails, &c. in shady .situations, abundant. 



7. L. nigra, crust filmy greyish granulated in patches, granules 

 extremely minute in thin even layers quite black. Turn. & 

 Borr. Lich. Brit. ined. p. 21. E. B. t. 2409. 



HAB. On the flat tops of gateposts,, frequent, Hopk. 



