342 MARCHANTIACE/E. 



Dense caespitosum. Frondes depresses, lineares spathulatas, 

 simplices vel divisae, apice bilobae, amaene virescentes tenerae ; 

 vena centralis crassa purpurascens. Radiculae longae, simpli- 

 ces, granulas numerosas continentes demum promone vacuae, 

 his receptactili per pedunculi sulcum decurrentes. Receptacu- 

 lum (faem.) breviter pednnculatum, lobatum, loborum margi- 

 nibus undulatis erectis vel inflexis, supra concaviusculum 

 punctis albisopacis multis notatum, infra plicato-convexum.' 



Pedunculus linealis, postice sulcatus. Involucra tot quot lobi 

 receptacula, extrorsum hiantia, oris margine supero truncato. 



Pistillum cuique involucro solitarium, brevissime stipitatum, 

 stylo mediocri terminatum. 



Capsula externa sub sessilis, (junior tantum visa) capsula 

 interna hiuc conformis, subsessilis. Sporula juniora tantum 

 visa cellularum reliquis, nonnullis capsulae parietibus adhae- 

 rentibus, immixta. 



Receptaculum masculum vena insidens, rotundato depres- 

 sum, superficie supera papulosa, papillis apice apertis. An- 

 therae cellulosae ? 



1 . Portion of a frond, female receptacle cut thro longitudi- 

 nally, but rather laterally. 



2. Female receptacle viewed from beneath, one of the invo- 

 lucra cut away. 



3. Young capsule. 



4. Do. secondary. 



5. Portion of membrance of do. remains of cells are seen 

 here and there attached to its sides. 



6. Very young sporula in different stages, intermixed with 

 irregular grumous bodies. 



7. More advanced sporula, intermixed with remains of dis- 

 located cellular tissue. 



8. Long section of male receptacle. 



9. Anther, (probably incorrect) 



10. Portion of an old radicle. 



11. Represents a curious thing adherent to the receptacle. 



12. Portion of do. this has nothing to do with the plant. 



