CRYPTOGAMIA. ALGAE. 1938. Lichen. 1793 



Ji gerontius: Stems unequal, thick, inflated-clavate, and with the deformed 

 cups fcaly, proliferous- luxuriant: tubercles cluttered, feffile. 



6. aifpatux. Stems much crowded, flexuou.s cups obfolete, branch-* 

 crefted, denticulate, nearly barren 

 *jimbriatus. Lobes cut-crenate: (terns cylindrical, white, dilated 

 upwards into a glals-fhaped clofed cup ferrate-toothed on the, 

 margin: tubercles on the teeth, nearly globular, minute, brown. 



Dill. 14. 8, B. 



2. junceus. Stems long, rather filiform, fcaly : cups cylindrical. 

 Dill ./. 14, 8. J, 



3. fynthetus. Stems obconic; cups proliferous 2 ox 3-fold, with nearly 

 barren marginal denticles. Dill. 14. 8. C 



*radiatus. Lobes cut-crenate : ftems long, cylindrical, greenifh- 

 white, mealy; cups irregular, rather pervious, digitate-radiate : 

 tubercles terminal, brown. Dill. 15. 16 A. B. D — F. 



2. ?iemc<xynut \ Stems long, filiform, branched, pointed, barren and fertile; 



cups hardly any; heads terminal, minute, pedicelled, cluttered. 

 Dill. 15. 16. C, 



3. aftmotus. Stems thicker, fcaly; cups flellate-radiate, with fpread jagged 

 flexuous barren rays. Dill 15. 16. G, 



*£ornutus. Lobes cut-crenate: (terns long, fimple, a little inflated, 

 pointed, barren and cup-bearing; cups cylindrical, clofed, nearly 

 entire : tubercles minute, marginal, feflile, brown. 

 Dill. 15. 14. A. 

 2. frolofcidalis. Stems cylindrical, ereft and curved, nearly fimple, ob- 

 fcurely cup-bearing at top, generally fcaly and biiflly. 

 Dill 15. 14. C. F. 

 ^gracilis. Lobes cut-crenate: ftems long, filiform) pointed, barren 

 and cup -bearing; cups glafs-fhaped, clofed, fubulate-denticulate: 

 tubercles pedicelled, brown. Eng Bot. 1248. 



2. bybrydus. Stems long, filiform, nearly iimplej cups large, with a concave 

 diaphragm, fubulate-radiate on the margin, proliferous and cup-bearing; 

 tubercles terminal, red-brown. Dill. 14. 13. A, B. 



3. cladonioidss. htems filiform, a litrle fork-branched} cups minute, nearly 

 obfolete, radiate: tubercles very minute, nearly globular, terminal, brown* 

 DHL 14. 13. E. 



ehngatus. Lobes cut-crenate: ftems cylindrical, very long, nearly 

 fimple, white-grey; cups obfolete, fubulate-denticulate: tubercles 

 brown. J acq. Mifc. 2. t. 11 ./. 1. 



cenoteus. Lobes cut-crenate : ftems a little inflated, white, mealy, 

 becoming proliferous-branched; cups minute, pervious, irregu- 

 lar, cylindrical, acutely denticulate, brown within ; denticles 

 and very minute tubercles black-brown. Achar. t. 7.7. 



fparafjus. Lobes cut-crenate : ftems cylindrical, grey, fcaly-rough, 

 branched, rigid; cups minute, denticulate, moftly pervious, re- 

 peatedly cup-bearing on the margin; tubercles on the fertiie-cups 

 cluftered, brown, 



VOL. VL-.Y5 



