OF CENTRAL AFRICA. 269 



The next genus of Crucifcrac to be noticed is Farsetla, 

 a fragment of the original species of which is in the collec- 

 tion. There are also several specimens of a j)lant, found 

 in the desert, supposed to be new, and which, tliough with- 

 out flowers, and considerably different in the form of its 

 stigma, I am inclined, from the resemblance in habit, in 

 pubescence, in sihcula, in seeds, and especially from the 

 exact similarity in the structure of the septum, to refer to 

 the same genus. ^ 



As the introduction of the structure of the dissepiment [-^7 

 into the generic characters of Crucifera) is now pi'oposed 

 for the first time, and as I believe that its texture and ap- 

 pearance should always be attended to in constituting 

 genera in this family of plants, I shall here offer a few 

 remarks respecting it. 



According to the particular view which I briefly but 

 distinctly published in ISIS, and which M. De Candolle 

 first adopted in 1821, of the composition of the pistillum 

 in Crucifera),^ the dissepiment in this family is necessarily 



1 farsetia. 



Favsclia. Turret, Furselia, p. 5. rarsetice sp. Ilorl. Keio. cd. 2, vol. -1, p. 

 G9. Be Cancl Si/st. 2, p. 2SG. 



Char. Gen. Caij/x claiisus, basi vix bisaccatus. FUamenia omnia eden- 

 tula. Anthercc lincarcs. Silicula ovalis v. oblonga, scssilis, valvis planius- 

 culis, loculis polyspermis (raro l-2-sperniis), funiculis liberis. Lissepimentum 

 uiiincrve, vcnosum. Semina marginata. Coiijledones accumbentes. 



llcrbae suffndicostc ramosce, pube bipartita appressa incance. Folia inte- 

 cjcrrima. llacemi subspicati. 



Obs. Dissepimentum in omnibus excmplaribus utriusquc speciei a nobis 

 visis completum, sed in F. scgyptiaca quandoqiie basi feuestratum, fide D. 

 Dcsfontaines. {Flor. Allant. 2, tab. ICO.) 



F. regyptiaca species unica ccrta est, nam F. stylosa, cujus floras ignoti, ob 

 stigmatis lobos patentes non absque haesitatione ad hoc genus rctuli. 



Farsetia.? sti/losa, ramosissima, siliculis oblongis polyspermis passimqiic 

 breve ovalibus 1-2-spermis, stylo diametrum transversum silicuLx subicquantc, 

 stigmatis lobis patentibus. 



Obs. Exemplaria omnia foliis dcstituta, sed illorum cicatrices ni fallor 

 obvia3. 



- In a work published in ISIO, the following passage, which has some re- 

 lation to this subject, occurs : — '' Capsuias omnes pluriloeulares e totidem thccis 

 confcrruminatas esse, divcrsas solum modis gradibiisque variis cohncsionis ct 

 soiubilitatis partium judico." {Prodr. Flor. Kov. IIoll. 1, p. 538.) This opinion, 

 however, respecting? the formation of multiloeular ovaria, might be held, with- 

 out necessarily leading to the theory in question of the composition of tiic fruit 

 iu Crucifcroc, which I first distinctly stated in an essay on Composilw, road 



