— 10 — 



a. Targionieae : pistillidia e pedunculo frondi innato 

 ( nervo ) infero , involucro coriaceo bifido : — Targionia, 

 Cjathodium, 



b. Marchantieae : pistillidia e pedunculis liberis , su- 

 peris: Grimaldia, Fimhriaria, Fegatella^ Lunularia, Plagio. 

 chasma, Redouillia, Dumortiera, Marchantia.... 



F A M- 12. J U N G E R M A N N I A C E JE. 



Herbulse arin. v. perennes, frondosae v. foliatae, passim 

 cum amphigaslriis. Antheridia sparsa , immersa. Pistillidia 

 calyptrata , sohtaria, raro plura, involucrata et passim 

 involucellata. Sporangia pedicellata, 4-valvia, raro univalvia, 

 elaterophora : Tribus 8, Nees ab E.: Metzgeriay Jneura, 

 Blasia , Bljtia.... Lejemiia., Frullania, Radula. . . Ptili' 

 dium . . . Sendtnera . . . Herpetiuni , Calypogeia. . . Geocaljx , 

 Saccogjna . . . Gjmnoscyphus ^ Jungej^manniay Plagiochila . . . 

 Alicularia, Gjmnomitrium . . . 



Ordo ri. Bliisci. 



Plantse minimae et pedales , plerumque perennes , caule 

 radicelloso, passim stolonifero et gemmas innovantes, ter- 

 minales v. axillarcs, nec non deciduas , agente, phyllodiis 

 parenchymatosis, enerviis v. 1-2-nerviis, integerrimis v. serratis; 

 spii'iductus nuUi, stomatia paucis. Flores axillares v. terminales, 

 dioeci , monoeci v. androgyni, involucrati: antheridia apice 

 hiantia, fovillam? granulosam fundentia et paraphysibus sti- 

 pata; archegonium (jjistillidium) fertile cum abortivis, gyno- 

 dermide styhfcra, solubili et basi utplurimum ruptili. Sporan^ 

 gium (thecaj calyptratum, gynophoro ( seta ) -+- — longo, 

 basi vaginulato, superne passim in apophysin tumente, suf- 

 fultum, plerisque operculo solubili ct peristomio simplici 

 Z|-8-16-32-dentato v. duplici (dentato et ciliato), membrana 

 intima in columellam, passim alatam, corrugata, et sporis, e 



