CRYPTOGAMIA. ALGAE. 1938. Lichen. 1789 



* 2. articulatus. Pendulous, greyiih white; filaments long, moniliform- 



jointecl, bfanched-fibrous: tubercles fcattered. roundiih, pale rufous. 

 Eng. Bet. 25$. f 1. 

 20. Tubercles jefjile, terminal and fcattered, jomewhat turbinate, at 

 fir ft margined, at length convex , covered with a membrane : frond 

 folid, rather zvotdy, caulefcent, branched, rough i/h and fibrous. 

 Stereocaulon. 

 ramuh/us. Shrubby, rough, fibrous, pale; branches vague, diffufe, 

 nearly fimple: tubercles fcattered and terminal, nearly globular, 

 black-orown. 

 *pafcbalis BrittV, fhrubby, greenifh-grey, fcalygranular; branches 

 mort, crowded: tubercles flattifh, turbinate, fcattered, lateral 

 and terminal, at length cluttered and convex, olive-brown. 

 Eng. Bot 282. 

 munus. Slender, tufted, grey im-vvhite, blacMlh at the bafe; branches 

 fhort, fompwhat flat-topped, floccular- mealy : tuberales lateral, 

 crowded, convex, black-brown. Mich gen. t. 53./'. 8. 

 Cereolus, Brittle, fimple, roughifh, powdery, thickened upwards, 

 grey: tubercles terminal, folitary, turbinate, becoming convex, 

 blackifh brown. Achar. t. 7 f 1- 

 tondyloideu* Naked, grey, branches flexuous, deformed, (lightly 



lobed, nodular. 

 tabularis* Tufted, grey-pale, unequal, a little rugged, warty- 

 branched; branches mort, divaricate, twilled, intricate, thicker 

 outwards Achar t-J-fi^' 

 fondenfatus, Shrubby, leafy; branches ihort, condenfed: tubercles 



fcattered, turbinate, Mack. 

 ibtufatus f Naked, with cylindrical equal obtufe branches : tu~ 

 bercles terminal, black with a grey margin. 

 Flor. Dan', t. 1 126. / 1. 

 Sertularia. White, many-cleft, ferruginous at the bafe. 



21. Tubercles terminal, mojtly on pedicles, becoming convex or cup- 

 like, fimple or chijiered, covered with a thin folid membrane ; 

 frond crujlaceous or leafy. Ba:omices. 

 a. Cfiftaceous, nearly uniform', tubercles on Jhort /olid cylindrical 



Jimple f offer fiaks. Pordenium . 

 fungoides. EfFufe, leprous, unequal, white: {talks long, thickened at 

 the bafe and top, white: tubercle* fimple, hemifpharical, deform- 

 ed, white-flefh-colour. 

 *rofeuS' Thin, leprous, a little granular, greyifh-white: ftalks very 

 mort, cylindrical,' white: tubercles fimple, flattilh, becoming 

 tumid and lobed, fleih- colour. E. Bot. 374. 

 $rupejlris. EfFufe, rugged-granular, mealy, white greenifh-grey : 

 f«alks a little compreifed, white: tubercles rather convex, rufous- 

 brown. Dill t. 14./, 4. 



