188 HEPATIC^. 



Stems creeping, simple or with one, rarely two postical branches, 

 proceeding from near the apex, 5 to G cells in diameter, cortical 

 cells about 12, similar to inner, all hyaline; radiculose, rootlets 

 plentiful, long, hyaline. Leaves subtransversely inserted, patent- 

 divergent below 60^-70°, above patent to erecto-patent 50°-30°, 

 approximate, larger, accrescent above, often capitate, below distant 

 and smaller, oval, ovate- quadrate or roundish, concave or slightly 

 complicate, bilobed to the middle or below, segments subincurved, 

 acute, acuminate or mucronate, margin irregularly spinulose- 

 dentate, or subdenticulate ; texture delicate, epidermis smooth, 

 cells minute to small, subquadrate, w^alls thin but firm, no trigones 

 or thickened angles. Stipules everywhere present, minute below, 

 lanceolate or subulate, mucronate, spinulose-dentate or denticulate. 

 Bracts larger than the leaves, bilobed to a third, segments sub- 

 spinose-dentate ; bracteole of equal length, broadly subulate or 

 ovate-lanceolate, entire or bilobed to ^. Perianth projecting f 

 beyond the bracts, delicate, hyaline or with a reddish tinge or 

 brown, subcylindrical, plicate above, mouth slightly or not at all 

 contracted, denticulate ; pistillidia few. Capsule dark brown, 

 nearly smooth, as broad as the dark brown elaters. Androecia 

 produced from the end of the chief stem on one or two very slender 

 branches, catkinlike; perigonial bracts several, larger than the 

 stem leaves, erect, concave, bilobed to about a third ; antheridia 

 large and round. 



Fruits April. 



Dimensions, ^Stem \ inch long, "Oo mm. diam., with leaves 

 '3 mm. wide ; stem leaves '25 mm. x "225 mm., segments '125 mm, ; 

 branch leaves '165 mm. x '125 mm., seg. *! mm., cells "0175 mm. ; 

 cells of marginal teeth "03 mm. x "01 mm.; stipules '14 mm. 

 X "05 mm. 



Hab. — On damp shady earth or rocks. Extremely rare. 



1, Curbis Bay, near Penzance, W. Mitten , W. Ciinwiv, 

 G. E. Lewies, Mrs. Mia M. Tindall. 2. Ashdown Forest, Sussex, 

 coll. G. E. Daviesy detected by JF. Mitten. 



Found on the Continent (Italy, France, Germany). 



Obs. — Distinguished from Ceph. elacJnsta (Jack.) by its less 



