-> 9 — 



raro deficiente, fructus maturi pedicellum, demum clongatum 

 V. brevissinuim vaginante (calyptra basilaris), Sporcmgia rup- 

 lilia V. dentatim dehiscenlia , saepius 4-2-vaIvia , raro colu- 

 mellata, sporis liberis, simplic. ( vesiculis nucleiferis) et ple- 

 rumqne filis inlus spiraliter slriatis , parietalibus (elateres) 

 plena. 



FAM. 9. RICCIACEiT. 



Plantulae hygrobiae , anniiae <^ , fronde crassiuscula , 

 limo adpressa v. aquae innatanti, passim discolori et lacu- 

 nulis aereis praedita , sub epidermide distincta, Antheridia 

 immersa , osliolo prominenle , passim styloso. Pistillidia 

 di-monoeca , immersa v, superficialia, quibusdam involucro 

 et involucellis stipata. Sporangia calyptrae innata v. libera, 

 globosa , ruptilia, sporis hemisphaericis v. angulatis, absque 

 elateribus: — Riccia ^ Sphaerocarpus , Oxymitra y Corsijiia, 

 SedgwicJiia. 



F A -M. 10. M O N fr C L E A C E iE. nob. s. Anthoceroteae. 



Plantulae annuae frondosae, rarius foliatse , epigeae v. 

 epidendrae, fronde enervi v. nervosa, epidermide discreta 

 nulla. Involucra frondi continua, cyathiformia v. patellaria, 

 c, anlheridiis — v. tubulosa c. pistillidiis solitariis. Sporangia 

 longissima, teretia, bivalvia, cum columella setiformi persis- 

 tente , sporas subtetraedras et elateres simpl. v, ramosos 

 gerente : Jnthoceros , Monoclcay Cladobryum. 



FAM. 11. MARCHANTIACE^. 



Herbulae perenncs, frondosae , epidermide porosa , 

 subtus squamulosa et radicante. Antheridia frondi immersa 

 V. in discis sessilib. v, pedicellatis. Receptacula pcdunculata , 

 subtus V. in ambitu pistillidia involucrata v. involucellata 

 gerentia, Sporangia pedicellata, ore dentato v. circumscisso, 

 raro 4 - fido, elaterophora, calyptra acroschiza v. evanida. 



