MONOGRAPHIA ONAGREARLM. J'2Ù 



vissinih ungidculata. Staniinn i-seriata , œrjiiilonga, omnia 

 ferlilia ; fdainenla erecta , v. adscendentia ^ v. declinato- 

 adscaîdeniia. Ovnriuni ^-locidare , loculis miillioK'idads ; 

 ovida (tdsccndentia , v. Iiorizontcdia^ v. suspensa. Stignui crii- 

 ciato-^-jj(tiiituni : pnrtilionibus elongatis. Pericarpiimi poly- 

 speriniim , ccipsiditre , dehiscentiâ peractâ persistens. Semina 

 nuda. Emhiyo reclus : radicidâ brevissimd ^ cotyledonibus 

 planis. 



I. Ovula adscendentia . 



Ovula i-seriata, siipei-posila , inappendiculata. Capsula liiiearis, 

 tetragona , 4-'oci''<T'is, 4-valvis, subcoriacca. Semina parva, kevia, 

 angulosa. — Flores diurni , rosei, prœfloratioue pendu! i 



ANOGRA NoB. 



Ovula 2-seriata , imbricata , inappendiculata. Capsula clavato- 

 cylindracea, subcartilaginea , obscure tetragona, sessilis, 4-lccu- 

 laris, 4-valvis. Semina parva, subfiisiformia, scrobiculata. — Flores 

 nocturni , fugaces, kitei , praefloratione erecti 



OENOTHERA Nob. 



Ovula i-seriata, imbricata, apice cristata. Capsula ellipsoidea , 

 coriacea , stipitata, subcompressa, tetraptera, 4-locularis, 4-valvis. 

 Semina rugosa, apice marginata. — Flores diurni, lutei, prœflo- 

 ratione erecti 



. MEGAPTERIUM Nos. 



II. Ovula Jiorizontalia ^ "i-seriata ^ sessilia. 



Segmenta calycina dorso inappendiculata. Ovarium 4-sulcum , 

 4-costatum. Capsula subcylindracea, v. obîongo-conica , coriacea , 

 stipilala , tetragona , 4-eosta!a , 4-locularis, 4-valvis. Semina cora- 

 presso-subquadiata; integumentum exterius (^arillus?) l'ungosum, 

 laeve , embryone crassior. — Flores nocturni, fugaces, lutei, prae- 

 floratione erecti 



ONAGRA Nob. 



Segmenta calycina dorso cristato-carinata. Ovarium 12-suIcum, 

 12-costatum. Capsula obiongo-conica, coriacea, stipitata, 4-Jocula- 

 ris, 4-valvis , cristato-tetragona : cristis crassis, tuberculatis, dorso 



