CRUCIFEll^E. 131 



Plate 53. 

 NASTURTIUM, R. Br. 



Siliqua abbreviata vel silicula teretiuscula, valvis turgidis 

 enerviis. Semina in loculis biseriata, numerosissima, parva, 

 immarginata ; funiculis capillaribus. Cotyledones planse ac- 

 cumbentes. — Calyx patens. Petala flava vel alba, iiiterdum 

 abortiva. 



Nasturtium, R. Br. in Ait. Kew. ed. 2. 4. p. 109. DC. Syst. 2. p. 187. 



Torr. & Gray, Fl. N. Am. 1. p. 72. Endl. Gen. 4850. 

 Sisymbrii Sp., Linn. Schkuhr, Handb. t. 187. excl. spec. 

 ? Armoracia, Rupp. Fl. Jen. Koch, Fl. Germ. p. 66. 



Water-Cress. 



Calyx spreading, somewhat colored ; the sepals imbricat- 

 ed in aestivation, equal at the base. Petals spreading, obo- 

 vate or cuneiform, sometimes obsolete. Filaments subulate 

 or filiform, toothless: anthers oval or sagittate. Hypogy- 

 nous glands 4 or 6. Ovary ovoid, oblong, or linear, some- 

 times one-celled from the incompletion of the partition : 

 style short or none, rarely slender : stigma capitate or de- 

 pressed, obscurely two-lobed. Ovules numerous, irregu- 

 larly crowded in several rows on each placenta (in two or 

 more ranks in each cell), nearly horizontal. 



Silique or silicle varying from linear or oblong to ellip- 

 tical or even globose-ovoid, terete or slightly compressed 

 parallel with the partition, two-valved ; the turgid or strong- 

 ly convex valves destitute of keel or midnerve ; the partition 

 nerveless or one-nerved in the middle. Seeds indefinite and 

 usually very numerous, occupying two rows in each cell, 

 on irregularly crowded capillary free funiculi, more or less 

 pendulous, flattish, rounded, impressed-punctate. Radicle 

 ascending on the side towards the axis (remote from the pla- 

 centa) ; the cotyledons accumbent, plane, parallel with the 

 partition. 



