EXPLANATION OF THE PLATES. (111) 735 
mbranous rudiment of the inner peristome and a portion of the annulus, of A. 
icsatiahia, Br. § Sch. 
* OMALIA. — Plant, tanta with Scat part of the peristome (one tooth, two cilia, one 
ciliola, and a portion of the annulus), and calyptra, of O. Wrightii, Sulliv 
HYPNUM. — Plant, two —_ with opercula, part of the peristome (one tooth, one cili- 
um, and two ciliolw, with a portion of the annulus), and a calyptra, of H. salebrosum, 
Hoffm. : after Sc ist 
Genera of Hepatice. 
aoe sons 
seaeayr — Plant; vertical 
us large air. ties) ; spores enclosed in * mother-cell ; three free spores ; and calyp- 
th fl of raya Hee r Bischoff. 
* sree EROS. — Plan' tl f th th lumella, togeth- 
r with as me lita two spores and two elaters, of A. levis. 
* senna lants cal section of the frond through the esis showing the 
capsule ; are of the pacino protruding from the end of the involucre ; lower half of 
8 aesistends showing a9 -peauenetanl - oe ond = wees i a ago 3; an antheridium ; 
yalvata, Sulliv. 
ULIA. — Plant ; tertile receptacle Ewe Era above ; “the same from below ; capsule 
dehiscing with remains of the calyptra at its base ; vertical section of the male disk, 
showing the imbedded antheridia ; an elater ; portion of the same ; and three spores, 
of R. hemispherica, Raddi: after Bischoff. 
Ce ee stale — Plant; a cluster of 5 involucres ; an involucre herve 3 a capsule ; 
with spores ; and three spores, of 8. Michelii, Bell after Schw cinite, 
* powers — Wiaiecenin goad of), male and female ; fertile seer showing three 
involucre: capsule partly covered by the calyptra ; vertical sec- 
tion of be iia disk, showing a imbedded antheridia ; an elater, portion of the 
and three spores, of D. hirsuta, Nees. 
¥ erg rchketide — Plants; triangular fertile receptacle wit! th its three large involucres 
m above ; same viewed sideways; involucre with one side cut away, showing 
the tects ao roa of te eds tra; a capsule with remains of calyptra at conten 
before dehiscence ; an elater; a piece of same more 
and two spores, s dt ». Wrightii, Suiliv. 
FEGATELLA. — Plants (portions of), male and female; a vertical section of the fertile recep- 
tacle, showing two invelucres, each with a capsule; capsule with its calyptraru tured 
at the apex; vertical section of male disk showing the antheridia; two elaters; por- 
: hoff, partly. 
PREISSIA. — Plants (portions of), male a d female; a Paice section of the fertile recep- 
tacle ; perianth, calyptra, and sasha two elaters ; portion of an elater; two spores ; 
vertical section of part of the male disk, showing ae bedded antheridia, of P. 
commutata, Nees: after Bischoff, partly. 
— Plants (portions of), male and female ; yertical section of the fertile recep- 
tacle ; perianth, calyptra, an and capsule ; an elater ; portion o! of the same; five spores; & 
i section of a part of the male disk, showing the im! imbedded anthéridia, of M. 
consi 5: the: eebne athe cri ah tn une ssl ar he 
and two sporules, of S, Lyellii, Lehm. : 
