EXPLANATION OF PLATE XXIIL 



PELLIA. — Plant of P. epiphylla ; calyptra with base of pedicel ; capsule ; an 

 elater, part of same, two spores, and two antheridia. 



BLASIA. — Plants of B. pusilla; section of cavity at the end of the midrib 

 showing young perianth and calyptra ; end of thallus with calyptra and 

 protruding capsule ; capsule dehiscing ; elaters and spores ; part of elater 

 and two spores ; ^ thallus with two antheridia ; gemmiparous thallus 

 with two receptacles; section of a receptacle showing enclosed gemmae 

 and the protruded orifice. 



METZGERIA. — Plants ( J", 9, and gemmiparous) of M. furcata, and parts 

 of same enlarged ; hispid perianth with 2-lobed involucral leaf and base 

 of pedicel ; a gemma ; an antheridium ; elaters and spores. 



ANEUR A. — Plants ( J* and 9 ) of A. sessilis ; section of fleshy calyptra with 

 base of pedicel ; dehiscing capsule bearded by persistent elaters; elater, 

 part of same, and spores ; part of thallus with long detiexed ^ recepta- 

 cles, and one cut transversely showing antheridia. 



FOSSOMBRONL\. — Plant of F. pusilla, and a part enlarged; capsule de- 

 hiscing, with perianth and involucral leaves ; part of stem with two leaves 

 and dorsal antheridia; an antheridium, elaters, and spores. 



GEOCALYX. — Plant of G. graveolens ; two pairs of leaves with underleaves ; 

 part of stem with an underleaf ; section of involucre showing calyptra and 

 base of pedicel ; dehiscent capsule ; elaters and spores. 



GRIMALDIA. — Parts of ^ and 9 pl^i^ts of G. barbifrons ; section of ^ 

 disk ; 9 receptacle and section of same ; dehiscent capsule ; elaters and 

 spores. 



CHILOSCYPHUS. — Plant of C. ascendens ; a leaf with underleaf; a pair of 

 leaves with antheridia ; a part of stem with involucral leaves, perianth, 

 and calyptra ; dehiscent capsule ; elaters and spores. 



HARPANTHUS. — Plant of H. Flotovianus, and same enlarged; a pair of 

 leaves with underleaf ; perianth witli involucral leaves, and section show- 

 ing calyptra ; elaters, a part of one, and spores. 



LOPHOCOLEA. — Plant of L. heterophylla ; a part enlarged with involucral 

 leaves and perianth ; cross-section of perianth ; three pairs of leaves with 

 underleaves ; a leaf and antheridium ; an underleaf ; an elater and spores. 



CEPHALOZIA. — Plant of C. multiflora; two pairs of leaves ; perianth with 

 involucral leaves ; an involucral leaf; calyptra ; capsule closed, and dehis- 

 cent ; an elater and spores.' 



GYjNINO^MITRIU^I. — Plants of G. concinnatum ; three pairs of leaves ; apex 

 of stem with involucral leaves and dehiscent capsule ; two involucral 

 leaves; cah'ptra. 



MARSUPELLA. — Plant of M. emarginata; part of same with involucral 

 leaves ; involucre and perianth opened showing calyptra and base of pedi- 

 cel ; capsule ; elater and spores. 



