no EJEFATICJS. 



brown. Spores smooth, pale reddisli-brown. Elaters bispiral, 

 from 12 to 20 turns, as wide as the spores and rather darker, 

 reddish-brown, Andra^cia situated on the upper surface of the 

 stem, perigonial bracts but little different from the stem leaves, 

 antheridia round, pedicel short. 



Dimensions. — Stems 2 to 4 inches long, diameter "35 mm.^ 

 leaves *! mm. x 1'3 mm. ; cells "06 mm. x '04 mm., "08 mm. x 

 •02 mm., "07 mm. x '02 mm., '05 mm. x "02 mm. ; stipules "5 mm. 

 X "85 mm. ; perianth 6" mm. long x 2" mm. wide near the apex ; 

 pistillidia "25 mm. x "075 mm. ; pedicel "5 mm. diameter, capsule 

 1-75 mm. x 1* mm. ; spores -0125 mm.; elaters '1 ram. x -0125 mm. 



Hab. — Growing in damp shady woods amongst other mosses 

 and hepatics, or on exposed swampy banks. 



1, 2, 5, 7 to 16. I. 



Found on the Continent and in North America. 



Obs. — This is one of the most beautiful and distinct of our 

 species ; as it is the only one of the genus found in Britain it is 

 not to be confounded with any other. 



Although generally distributed it is extremely rare in fruit. 



The perianth appears to be a continuation of the stem, swollen 

 and hollowed out, from the base of which proceeds the pedicel. 



As the abortive pistillidia are found on the surface at its apex 

 I consider the calyptra to be wanting ; I have dissected a great 

 number of perianths, having copious material from North America, 

 where it fruits more freely, without observing any trace of such 

 organ, and always finding the abortive pistillidia mixed with the 

 hair-like processes on the upper surface of the perianth. 



Description of Plate XL.— Fig. 1, 2. Stems natural size. 

 3, 4. Portion of leaves x 64 (Switzerland, Jack). 5. Portion of 

 leaf X 290 (ditto). 6. Stipule x 64 (ditto). 7. Perianth x 11 

 (Oneida, N. America, Hb. Austin). 8. Cross-section of perianth, 

 lower half x 16 (ditto). 9. Ditto, uj^per half x 16 (ditto). 

 10. Mouth of perianth, explanate x 16 (ditto). 11. Cilia on 

 epidermis of perianth x 85 (ditto). 12. Pistillidium x 85 

 (Closter, N. America, Austin). 13. Capsule x 11 (Oneida, Hb. 

 Austin). 



