VIII. CRUCIFER.E. 65 



Septum narrower tliau the transverse diameter of the pod 12. Capseixa. 

 ^och Jlattened, the fiat valves parallel to the septim or to each 

 other. 



Cotyledons accumheut. Pod witli a septum. 



Pod orbicular. Seeds 2 to 4 in each cell 5. Alyssum. 



Pod elliptical. Seeds 10 to 12 or more in each cell ... 6. Dkaba. 

 p ^^^yj<^*^ons incumbent. No septum. Seeds numerous, small , 11. Menkea. 

 rods flattened laterallij, the valves hoat^shaped, with their flat 

 Sides at right angles to the narrow sevtimu 

 ^eeds 1 in each cell. 



Pod either iudehiscent or separating into 2 indehisceut cocci . 13. Senebieua. 



Fod- valves dehiscent 14. lEriDiLAf. 



J^eeds 2 to 4 or more in each cell. 

 Cotyledons incumbent. Seeds, or at least ovules, 6 or more 



m each cell 12. Capsella. 



Cotyledons accumheut. Seeds or ovules 4 or fewer in each cell 15. THLASPr, 



esides the above genera, the following Crucifen^ have appeared as introduced weeds of 



miophila pumila, Linn, f, from South Africa, a slender, glabrous, erect annual, with 

 ueai- or hhform leaves, small white tlowers, and slender mouiliform pods with flat orbicular 

 eeas, and long, lineaj-, twice-folded cotyledons. Received from Swan lliver. 

 cies '■^'^^^{^ ''^PP^i'cntly B. geniculata {Slnapis geuicidata, Desf), a Mediterranean spe- 



> m Herb. Mueller, from Moreton Bay, but the specimens are too young to determine. 

 bl.-T 1 v^^f ^^^ii^vij, Linu., the common cultivated Radish of Europe and Asia, has csta- 



'j!'^ Itself as a weed in mauy cultivated places. 

 J'j'^pts hastata, Besf Cat. Ilort. Par. ed. 2, 151 ; DC. Prod. i. 220, described from a 

 pecimen raised in the Jardin des Plautes. supi)03ed to have bi-cu of Australian origin, is 

 ^^otaxts virgata, DC, a Spanish plant. 



NASTURTIUM 



1 . p^J s^^oi't> equal, spreading. Petals scarcely cLnvcd. Pods nearly cylin- 



cat, short ov elongated, tlie valves convex, sliglitly 1-nerved, the septuiii 



ansparcnt ; style short or long, with an entire or 2-lobed stignm. Seeds 



Cn^ n ^^^^^"^^% i'^^ged in 2 rows, small, turgid, Avith short free funicles, 



ot}iedons accumbeut.— Herbs, either glabrous or pubescent, with simple 



Ye?W '^^^^^ ^^'^^'^' ^^^^'^' ^^ pinnately divided. Tlowers small, generally 



ast'tv.^'v^^'^^^^Senus, dispersed over the -renter pai^t of the globe, and very difficult, both 

 Austr.r "^^^^^""^nation of its species and as to its distinction from other genera. The 

 ^anan species is one of the most ^videIy diffused. 



Jlowers yellow . . . \. N.palustre. 



blowers white. ^ 



^^df aquatic perennial Petals ohovafe K officinale [hdovi). 



^^ annual. Petals very small and narrow • . . . Cardamine eusfghs (p. 71)- 



J^t^^T^^' ^- ^^-i^ ^C. Prod. i. 137, the European Watercress, with pinnate leaves and 

 toria pn 1 o "^"^ segments and white flowers, has heen noticed iu a few streamlets m \ ic- 

 (Pj^/^'''l,^^^^li Australia; but everywhere its importation from Europe could be traced 



Mueller). 



N 



All erect or decumbent or 



Wtf '-'^'"S annual or biennial, from a few laches to 2 ft. or more in 



lohS ^^^^^ glabrous or very rarely pubescent. Leaves toothed or pnmately 



;^3 or the lower ones sometimes Ivrate, auriculate nt the base, the lobes 



