OF CENTRAL AFEICA. 265 



consider that of Iberis, in which I can find no pecuUarity, 

 as deviating from that structure.^ 



LuNARiA LiBYCA of Viviani^ is the second plant of Cru- 

 ciferse on which I have some observations to offer. This 

 species was described and figured, by the author here 

 quoted, in 1824, from specimens collected in 1817 by 

 Delia Cella. The specimens in the herbarium were found 

 near Tripoli, where the plant had also been observed in 

 1819 by Mr. Ritchie, who referred it to Lunaria, and 

 remarked that the calyx was persistent. Professor Sprengel, 

 in his ' Systema Vegetabilium,' considers it a species of 

 Parsetia. 



That this plant ought not to be associated either with 

 the original species of Lunaria, or with Savignya, as now 

 constituted, is sufficiently evident. And if it is to be in- 

 cluded in Farsetia, it can only be on the grounds of its 

 having a sessile silicule, with compressed valves, an inde- 

 finite number of seeds in each cell, and accumbent cotyle- 

 dons. But in these respects it accords equally with 

 Meniocus, a genus proposed by M. Desvaux, and with 

 some hesitation received by M. De CandoUe, and with 

 Schivereckia of Andrzejowski, which he has also adopted. 



» SAVIGNYA. 



Savignya. Be Cand. Syst. 2, p. 283. Lunarise sp. . BeUle. Desvaux. 

 Viviani. 



Char. Gen. Cali/x basi sequalis ; sestivatione valvata. Silicula oWonga, 

 septo conformi, valvis convex iusculis. Semina biseriata imbricata marginata. 

 Cotyledones conduplicata;. 



Herba annua, glabra {quandoque pube rara simplici). Folia craisiuscula, in- 

 feriora obovata in petiolum attemiata grosse dentata, media stspe incisa, snperiora 

 linearia. Raoemi opposilifolii, ebracteali. Elores pani eredi, petalis molaceis 

 venis saturatioribus. Siliculae racemosee, divaricata, inferiores seepitis deflexa. 



Calyx erectus, sestivatione valvata, ipsis apicibus vix. imbrieatis. Petala 

 UDguieulata, laminis obovatis sub ffistivatione mutuo imbrieatis. Stamina dis- 

 tincta, edentula, singulum par longiorum glandula subquadrata extus stipatum ; 

 breviora, quantum e speciminibus observare licuit, eglandulosa. Omrium 

 brevissime pedicellatum, ovulis adscendentibus nee borizontalibus. Stylus 

 brevis. Stigma capitatum vis bilobum. Silicula breviter manifesto tamen 

 stipitata, oblonga nunc oblongo-elliptica. Valmlm uninerviae reticulato-venosse. 

 Bissepimentum e lamellis duabus separabilibus uninerviis venis anastomozanti- 

 bus obsoletis : areolis subtransversim angustato-linearibus, parietibus (tubulis) 

 rectis subparallelis. Funiculi horizontales, dimidio inferiore septo arete adnato 

 superiore libero. 



= Flor. Lib. Speeim.p. 34, tab. 10,/ 1. 



