742 EXPLANATION OF THE PLATES. 



TAB. XXI. 



PELLIA. Plant ; calyptra with lower part of the pedicel ; capsule ; an elater ; portion of 

 the same; two spores ; and two antheridia. of P. epiphylla, Nees: after Hooker. 



BLASIA. Plants (fertile, male, and gemmiparous) ; end of a frond, showing the calyptra 

 and capsule protruding from the apex of the midrib ; male frond with two antheridia ; 

 a gemmiparous frond with two receptacles ; a vertical section of one of the recepta- 

 cles, showing the gemmae enclosed, and the tube through which they issue ; three gem- 

 mae ; four spores and three elaters ; two spores, and portion of an elater ; capsule de- 

 hiscing ; Tertical section of the cavity in the end of the midrib showing the perianth 

 and the calyptra hi a young state, of B. pusilla, L : after Hooker. 



METZOERIA. Plants (fertile, male, and gemmiparous) ; a fertile plant enlarged ; the his- 

 pid calyx with the two-lobed involucral leaf and part of the pedicel ; forked ends of 

 the gemmiparous plant ; a gemma ; underside of a portion of the male plant, showing 

 roundish perigonial leaves covering the antheridia ; an antheridium ; three spores and 

 two elaters, of M. furcata, Nees : after Hooker. 



ANEUKA. Plant (portions of male and female) ; a vertical section of the fleshy calyptra, 



with the base of the pedicel ; a portion of the frond, with two elongated defiexed male 

 receptacles ; one of these receptacles cut transversely, showing the imbedded anthe- 

 ridia; valves of the capsule bearded by tufts of elaters ; three spores ; one elater, and 

 portion of the same, of Aneura sessilis, Sprengel ? 



FOSSOMBRONIA. Plant ; and the same enlarged ; capsule dehiscing, with pedicel, peri 

 anth, and involucral leaves ; part of the stem, with two leaves and dorsal anfheridia , 

 an antheridium ; two sporules ; and two elaters, of F. pusilla, Nees : after Hooker. 



QEOCALYX. Plant ; part of the stem, with the involucre, which is cut vertically, showing 



the calyptra and lower part of the pedicel ; two pairs of leaves, with the amphigas- 

 trfa ; portion of the stem, with one amphigastrium ; four valves of the capsule ; two 

 elaters ; and three spores, of G. graveolens, Nees. 



GEDIALDIA. Plants (portions of), male and female; end of a frond showing the paleae 

 and lower part of the peduncle ; end of a frond with two male disks ; one of the disks 

 cut vertically, showing the imbedded antheridia ; a fertile receptacle ; a vertical sec- 

 tion of the same ; capsule dehiscing by a circumcissile line ; two elaters, and two 

 spores, of G. barbifrons, Bisch : after Bischoff. 



CHILOSCYPHUS. Plant ; portion of the stem, with involucral leaves, perianth, and calyp- 



tra ; a pair of leaves with antheridia in their dorsal bases ; an antheridium ; portion 

 of the stem, with a leaf and an amphigastrium ; capsule with its four valves ; three 

 spores and two elaters, of C. ascendens, Hook. If Wils. 



PLEURANTHE Plant ; the same enlarged ; a portion of the stem, with a pair of leaves 



and an amphigastrium ; perianth with involucral leaves and part of the pedicel ; the 

 same cut vertically, showing the calyptra ; capsule with its four valves ; five spores ; 

 three elaters, and part of an elater, of P. olivacea, Tayl. 



LOPHOCOLEA. Plant ; portion of the stem, with its leaves and the perianth ; same, with 



one leaf having in its dorsal base an antheridium ; the same with three pairs of leaves 

 and three amphigastria ; one amphigastrium ; one antheridium ; a cross-section near 

 the mouth of the perianth ; three spores and an elater, of L. heterophylla, Nees, 



JDNGERMANNIA. Plant; portion of the stem with two pairs of leaves ; branch with in- 

 volucral leaves and perianth ; an involucral leaf ; calyptra ; capsule with valves 

 closed ; same with valves spreading ; an elater and two sporules, of J. connivens, 

 Dicks : after Hooker. 



OYMNOMITRIUM. Plants ; portion of the stem with three pairs of leaves ; the same with 

 Involucral leaves at the apex, pedicel, and capsule ; calyptra with base of the pedi- 

 cel, the involucral leaves being cu.t away ; and two Involacral leaves, of Q. conclnna- 

 torn, Oorda: after Hookat, 



