MONOGRAPHIA ONAGREARUM. 4<^.'5 



EPILOBIUM (LiNN.) NoB. 



Calyx subcampanulatus, 4-fidiis : segmentis erectis, v. suberectis. 

 Nectarium tenue, calycino tubo adnatum in ejusque fauce 4-lobum. 

 CoROLLA campaniformis, v. cyathiforniis, regiilaris : petala obcor- 

 data, V. emarginata, brevissimè unguiculata. Stamina corollà laul- 

 tô breviora, erecta, 2-seriata : 4 petalis anteposita (illisque demis- 

 siùs calycino tubo insertu) alternis (fauce insertis) breviora. 

 Filamenta fîHCoimia, recta. Antberce ellipticœ, v. subrotundse, 

 apiculatfe, basi emarginatae, medio dorso affixœ, minimœ, post an- 

 thesin haud contortae. Ovarium costato-tetragonum , 4-sulcum (sul- 

 cis cum dissepimentis alternantibus ), lineare, stipitatum, v. sub- 

 sessile, 4-loculare, sub anthesi erectum v. subdeclinatum ; ovula 

 subimbricata, adscendentia, in singulis loculis plurima, i-seriata. 

 Stîlus fililbrniis, rectus, stamina subsuperaus. Stigmata 4i bre- 

 via, conniventia. Capsula prismatico-tetragona, Iseviter 4-sulca , 

 linearis, chartacea, stipitata ( rarô subestipitata), in lostrum 

 brève truncatum aspermum 8-crenulatum desinens, 4"'ocularis, 

 4-valvis (ab apice ad basin dehiscens), polysperraa. Semina oblonga, 

 V. oblongo-obovata, minutissimè papillosa , v. punctato-scabra, 

 basi apiculata , apice obtusa, dorso convexa , facie complanata ra- 

 phique longitudinal! subcarinata notata. Epispermium crusta- 

 ceum, tenue. Embryo semini conformis : cotyledones integerrimae , 

 oblongœ; radicula oblongo-conica , obtusissinia , cotyledonibus 

 subduplô brevior. 



Herbae perennes , nonnunquàm stoloniferse , v. radiée repente. 

 Folia sessilia, v. brève petiolata, denticulata, v. integerrima : infe- 

 riora opposita, v. ternatim verticillata; superiora plerumquè sparsa. 

 Flores axillares, remoti , ssepè pra'floratione nutantes, demùm 

 erecti. Petala rosea, v. purpurea, v. alba. Ovarium stipiti pedicel- 

 liformi plîis minùsve elongato à bracteà semper distincte insi- 

 dens. 



Ad hoc genus referenda sunt Epilobia omnia europaea , prœter 

 illa sub Chamœnerio citata, et verosiniiliter species plcrseque 

 exoticae. 



