BY REV. F. E. M. WILSON. 155. 



scattered or evanescent, ramules fibrilloso divided. Ceplia- 

 lodia with sirosiplioid gonimlc stratum. Apotkecia large, 2 

 to 4 mm. broad, spores 3 to 7 septate, "036 to '058 x '004 to 

 •006 mm. 



Hab. on stones. Nyl. ex lib. Hook. 



4}, S. coralloides, Fr., = S. Corallinum of Babington, cses- 

 pitose, ramose, gLibrous, granules cinerascent, sub-fibrillose, 

 or digitalo divided. Apothecia terminal and lateral. Spores 

 cyliudraceo fusiforni; 3 septate, '02 to '04 x •0025 to '005 mm. 

 Ceplialodia clneiascent, verrucose, minutely granulate, sessile. 



Hab, on rocks, St. Patrick's River, Giimi, Hook. Fl. 

 Tasm. 



5. S. denudalum, Flk., podetia slender, simple or branched, 

 attenuate at apex, glabious, granules whitisli or albo cineras- 

 cent, sub-peltate, medio depressed, the centre virescent, margin 

 white, crennlate. Apothecia fuscous, small, plane or convex, 

 terminal or lateral, spores elongato fusiform, 3 rarely to 5 

 and 7 septate, "02 to '046 x -062 to "004 mm. Cephalodia 

 olivaceo fuscescent, verrucoso glomerulose. 



Hab. on rocks and stones, Cheshunt, Archer, Hook, Fl. 

 Tasm. 



6. S. leptaleiivi, Nyl., thallus small, 5 to 10 mm. high, erect 

 or ascending stipate, sparingly ramose, slender, axis nude, 

 glabrous above or granulose at apices of branches, granules 

 few, white or whitish, sub-globose, small, or pulveraceous. 

 Apothecia not seen. Cephalodia olivaceo us, opaque, or olivaceo 

 cinerascent, verrucoso glomerulose, or botyroideo glomerate, 

 gonimic granules disposed in oblong or elongated nodules. 



Hab. on granite stones, Nyl.; Mt. Wellington. 



7. S. gracikscens, Nyl,, white or albo cinerascent, of soft 

 habit, with podetia nearly an inch high, csespitoso congested 

 and intricate, branched in the upper part, sparsely glomeru- 

 lose, granulose, axis slender, filiform, somewhat glabrous, 

 granules verruculose or nearly pulverulent. Apothecia and 

 cephalodia not seen. 



Hab. on granite rocks. St. Patrick's River, Gunn, Hook. 

 PL Tasm. 



Series III. — Ramalodei. 

 Thallus fruticulose or fiiamentose, erect or pendulous, 

 terete or variously compressed or angulose, without any 

 folioles or granules or basal crust, internally tubulose with 

 hollow medulla, or solid. Apothecia generally lecanorine. 



Genus I. — Siphula, Fr. 

 Thallus of terete or compressed stipes, erect, firm, simple 

 or often dichotomously divided or ramose, apices obtuse or 



