Mi 



CRYPTOGAMIA. ALGAE. 1938. Lichen. 1795 



atremtatus. Stems en ft, fomewhtt divided, fcaly, dilated at theaxftj 

 branchlet* forked, taper, fomewhat cup-bearing at tup, radiate. 

 Dtli. 16 22 H. 

 tduncus. Scattered, tubular; Hoary-pale, vaguely branched, radiately 

 hook- fpi nou sand perforated at the tips and axils: tubercles on ihe 

 terminal fpines, pale rufous. Dill 16 21. A. 

 2. grvpeus Pal fh white, branched, naked, with thickened intetnodes, 

 perforated at the axilsj branches nearly -ereel:, flat-topped, lateral and 

 terminal branchlet" hook fpinous: tubercles browniih. Dill. 16. 21. B. 

 Opr*/75/V/^^.Tuouiar, difFufe, brown ifh-grey; branches divaricate, naked, 

 ihickened above; branchlets flat-topped, truncate; axils perfbraed, 

 ■*j)ungenr+ Tubular, tufted, cylindrical, grey, forked, much branched, 

 perforated at the axils ; branches iiexuously implicate, taper 

 tubercles minute, blackim brown. 

 2. niveus. Crowded, nearly erect, flexuous, very brittle, cylindrical,pare 

 white, impctforate, forked, much branched: tubercles very minute. black. 

 fpiculatus. Crowded, erecT:, filiform, tubular, white, glabrous, forked- 

 branched, yellowifh, imperforate at the axils; branches fabolate, 

 fimple. 

 *gg re £ a tus Crowded, erecl:, nearly cylindrical, tubular, flexnous, 

 branched, yellowilh, imperforate at the axils; branches fcattered, 

 ramulous, p inted: tubercles globular, cluttered, black-brown. 

 *rangiferinus. Cylindrical, tubular, erecf, much branched, greyish, 

 perforated at the axils; branchlets recurved at their tips- tubercles 

 3 or 4 together, globular, red-brown. Eng. Bot. 173. 

 2. alpeftris. Much branched, white; branchlets implicate concatsn afe; the 



axils becoming perforated and ftellate-branched. Dill. 16, 29. E, F. 

 # 3» Jylvaticus Greyifh-vvhite, lefs branched, perforated at the axils; 

 terminal-branchlets nearly erecl, reddifh at top, barren and fertile. 

 Dill. 16. 30. B. 

 4. rjctmofuu Branched, perforated at the axils; branchlets erect, racemed; 

 tubercles cluttered, pale rufous. 

 *furcatus. Cylindrical, tubular, erecl, taper, grey-brown ; branches 

 afcending, dichotomous and forked: tubercles dull brown. 

 Dill. 16/27. 



2. epermenus. Ere£t> Miff, glabrous, grey; lateral branches (hort fprcad, 

 ramulous; ultimate -ones cloven, very fhort, barren. 



3. recurvus. Grcenifh- glaucous, fcaly; branches and branchlets reflected, 

 the ultimate-ones (hort. Dill 16. 27 D. 



*Jubulatus. Erecl, tubular, taper, (lightly divided; branches erect;, 



fimple, fubuiate, greenifh-grey: tubercles bay. DHL 16. 26. 

 *fpinoJus. Nearly cylindrical, tubular, grey-brown, vaguely branch- 

 ed; branches effufe, curved, flexuous, with (pines pointing 

 backwards; fertile-branchlets fomewhat digitate, with browr 

 tubercles. Dill t. 16. 25. 

 2. acanthinus. Branches trifid; branchlets barren very fhort, flat-topped. 

 ^ palanuens . Lateral branches carved, dede&ed, afcending, twilled 

 dilated fomewhat palmate and fertde at top. Hag. 2. II, 



Y S 2 " 



