336 HEPATIC^. 



ing about half beyond the bracts, obovate, oval-rotund or 

 oblong-oval, slightly plicate near the mouth, mouth hyaline with 

 4 or 5 irregular segments, furnished with about 20 long or short 

 cilia, which are 1, 2, or 3 cells long, incurved; their irregularity 

 gives the mouth a lacerated appearance. Calyptra mitriform, 

 cells delicate, yet regular and well defined, not so delicate and 

 indistinct as in some allied species. Capsule oval, dark reddish- 

 brown, valves dividing down to the base. Spores light brown,, 

 elaters purplish-brown, bispiral. Male stems similar to others, 

 sometimes more slender, perigonial bracts accrescent, crowded, 

 forming small capitula, ventricose, bifid with incurved basal 

 lateral segments, dentate ; antheridia spherical, large, one or two 

 in each bract. 



Fruits March, April. 



Dimensions. — Stems J- to 1 inch long, "5 mm. diam., leaves 

 1'3 mm. long x 1* mm. broad, segments '7 mm., 1*2 mm. 

 X 1'2 mm., sees'. "6 mm., 1'2 mm. x '7 mm., seg. '7 mm., I'l mm. 

 X 1'2 mm., seg. '6 mm., '6 mm. x "5 mm,, seg. '4 mm.; cells 

 •05 mm. X *04 mm., "05 mm. x '03 mm., .04 mm. x "04 mm., 

 '03 mm. X "03 mm.; bracts 1'7 mm. long x 1'9 mm. broad, seg- 

 ments "6 mm., '5 mm., 1'5 mm. x 1"8 mm., seg. "8 mm., seg. 

 •4 mm., 1*5 mm. x I'O mm., seg. '6 mm., "3 mm. ; sub-bract 

 1*3 mm. long x 1*1 mm. broad, segment "5 mm.; perianth 

 2'7 mm. long x 1*5 mm. broad, 2' mm. x 1"1 mm., 1"8 mm. 

 X 1*3 mm. ; cilia '15 mm. long, "12 mm., "07 mm. ; capsule 

 •25 mm. diam. ; pedicel ^08 ram. diam. ; spores '015 mm. diam. ; 

 elaters •I 2 mm. long x •Ol mm. broad ; perigonial bracts '7 mm. 

 long X 1"1 mm. broad, segments 'A. mm., 1. mm. x.8 mm., seg. 

 •4 mm. ; antheridia 'IQ mm. diam. 



Hab. — Growing in large patches on heaths, banks, rocks, or 

 amongst mosses on moors ; most frequent in subalpine localities. 

 Generally distributed. 



1, 3-5, 7, 8, 10-16. I. 



Found on the Continent and in North America. 



Obs. — This is an easily recognised species, and from any of 

 the allied dioicous species may be distinguished by the remarkably 



