CRDCIFERJE. 37 CARDAMI^-E. 



Conspectus of the Genera. 



* Cotyledons accumbent (0=;). Seeds generally oompressed. 



f silique terete ; calyx bisaccate, . . Cheimnthtts. 10 



«;i:^„«-o- * ' * ■ ,;i;„ „,:,\. 1 one nerved. . . . Arabis. 4 



?.nM^?nJ U'^'-T ', i funicu. Slender. Cnrdaviine. 2 



*;;i;;^"^'," i ^''^ ^'^^'^*' ^ nerveless ; | f„„ie„i„s dilated, De„taria. 5 



' I Sds in tAvo «erie-- ' ^''^l^'^* convex; Ivs. pinnately divided, Nasturtium. H 



I'' ' " "' \ valves flat ; leaves toothed and entire, Turrith. S 



f valves seiniglob.:stam, toothless: fls. white, Coclilearia. 9 



f Septum broad ; j , stamens some of them toothed, Alyssum. 11 



( valves flat, { , „ ..11 ( cal. bisaccate, Ltmftrin. 1'2 



Siliculose- ^^'^«"^'°°^Wess;|^.^ly^,q^^,^'^,„,„. 3 



' ''eotum linear- i cells many-seeded; valves winged on the back. ThinspL 1 



\ '' 'I cells one-seeded, Pteris. 14 



I Septum transverse: silicle tomeutose. 2-jointed. 2-seeded, C'ahile. 13 



" * Cotyledons incumbent (ojj ). Seeds ovate. 



<,jjjjgjg . I Silique 4-cornered ; eal)-x closed, ..... Erysimum. 15 



'1 SiUoue rouniUsh- 1 '''^'>'^ bisaccate ; stig. 2, seeds sub-3-angled, Hesperis. 20 



' ' ( calyx reg^ular, Sysimbnum. 16 



|- ( valves flat ; silicle 1-celled, 1-seeded, . Ji:atis. 22 



! Septum elliptic ;<,. f caulescent, . . Camdina. 17 



Siliculose:^ r=^'*=^ ^'^''""="*«! i ^'emless, aquatic, . Subularia. 19 



i Sep. ven,- narrow i^'['^'e'"^?u'«'"-''^cordate, . . 0,p>,;eUa. 18 



I sil. ovate or subcor.,[cotyl. sometimes ace.,] Ltpidtum. 21 



*** Cotyledons conduplicate (o»). Seeds globose. 



''iliauose • J ^'''' '•■'^Jisversely manv-celled; sds. in a single series; Ivs. lyrate, Enphanus. 3.3 



'I Silique 2-celled : -j *'^'5->^ spreading, style acute, . . . ^m,ph. 2:3 



/* ( calyx closed, style obtuse, . . . Brn).-<tea. 24 



Siliculose ; Silicle 2-jointed, lower loment abortive : upper, globose, . Crambe. 20 



Tribe 1, PLEURORHIZE.E. 



Cotyledons accumbent ( 0= ). Radicle lateral. Seeds compressed. 



1 . T H L A S P I . 



Silicle compressed, emarginate, many-seeded; valves car- 

 inate, oi'tea winged; caly.x equal at the base. 



Gr. ^Xa-co. to cotnpress ; because the seed vessels appear as if compressed. 

 Seed-vessel a short, flat, 2-celled, inversely heart-shaped, smooth silicle, 

 crowned with the style. 



T. arve'nse. 



Leaves oblong-sagittate, coarsely toothed, smooth ; silicle suborbicular, lon<r 

 er than tiie pedicel ; its wings dilated longitadinallv. In cultivated fields. 

 The whole plant smooth, S — 12 inches high, branching. Leaves claspinsr tiie 

 stem with their arrow-sliaped bases, their margins wavy and toothed. Flow- 

 ers small, white. Silicles almost round. The plant has a disagreeable flavor 

 of garlic. June. Ann. Penny Cress. 



2. CARDA'MINE. 



Siliqne linear, with flat, nerveless valves, which often open 

 elastically, and are narrower than the dissepiment; seed not 

 margined, with a slender funiculus. 

 D 



