cryptogamia. ALGiE. Jungermannia. 819 



* * * Fronds imbricated. 



14. J. fhoots creeping : leaves ear'd below double-im- 

 bricated, branches equal. flat. 



15. J. fhoots creeping, leaves ear'd below double-imbri- 

 cated, branches broader at top. dilated. 



16. J. leaves imbricated in a double feries : the fuperiour 

 ones roundifh convex obtufe fourtimes larger. 



tamarijk. 

 platyphylla. 17. J. (hoots procumbent imbricated underneath, leaves 

 hearted acute. broad-leaved. 



18. J. fhoots creeping, leaves double imbricated: ear'd 

 below fringed. fringed. 



19. J. fhoots ereclim two-ways imbricated leaves two- 

 parted, various. 



Scrtularioides J. fhoots creeping : branchlets everywhere flower- 

 bearing, leaves capillary equal jointed. S. 



Sertularia-like. 



complanata. 



dilatata. 



tamarifci. 



ciliaris. 



varia. 



* * * * Shoots imbricated on all fides : leaflets fcatter'd. 



julacea* 



20. J. fhoots columnar, leaves imbricated on all fides, 

 flowers peduncled. catkin, 



rupefiris. 21. J. fhoots columnar, leaves awl'd one-rank'd. rock, 

 trichophylla. 22. J. fhoots columnar, leaves capillary equal. hair- 

 leaved. 

 ' 23. J. fhoots columnar, leaves egg'd expanding, calyxes 

 imbricated. alpine. 



alpina. 





* * Stemlefs with fronds fmple. 



epiphylle. 

 pinguis. 

 multifida. 

 furcata. 



pufella. 



24. J. ftemlefs, leaflet growing on the frond, over-leafed, 



25. J. ftemlefs, frond oblong finuous. fat. 



26. j. ftemlefs, fronds twice-feather-cleft. many-cleft. 



27. J. ftemlefs, frond linear branchy : extremities forked 



obtuhfh forked. 



28. J. ftemlefs, fronds rather feather-cleft : lobes imbri- 



cated, perichcetium folded. feeble. 



1 197. TARGIONIA. Calyx two-valved, including 

 a globe. 



hypophylla. 1. Targ IONIA. under -leafed, 



E e e 



11 



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