226 



ORDER 13. CRUCIFER^E. 



at base, of 4 petals united into a spongy mass, cylindric, compressed, tapering 

 upward, 2-lippecL Fine for arbors, Jn., Aug.f 



3. CORYDALIS, DC. (Gr. name of the Fumitory, from which genus 

 this was taken.) Sepals 2, small ; petals 4, one of which is spurred at 

 the base ; stamens 6, diadelphous; filaments united into two equal sets 

 by their broad bases, which sheath the ovary ; pod 2-valved, compress- 

 ed, many-seeded. Lvs. cauline. Pedicels racemous, bractless. 



1 C. glaftca Ph. Glaucous, erect; fls. red, yellow at the tip; pods erect; lobes 

 of the Ifts. obtuse, bracts minute. Rocky woods, Can. to N. Car., 1 3f. 

 high. Lfts. 1' long, 3-lobed, Corolla with a short, blunt spur. Racemes panicled. 

 Apr. Jl. 



2 C. aurea "VVilld. Low, diffuse, finally ascending (8 12') ; lobes of the leaves acute ; 

 rac. opp. the Ivs. and terminal ; fls. secuud, bright yellow, spur deflected; pods 

 pendulous. @ Rocky shades. Cor. 6". Apr. Jl. 



(3. HACRANTHA. Fls. 10"; spur nearly as long as the limb. Dakota. 



y. FLAVULA. Fls. 3 4'', pale yellow ; spur very start ; pet. pointed. Com. 



3 C. montana Engl. ? Ascending ; rac. terminal ; l/.-lobes obtuse ; bracts lanceo- 

 late;, cor. yellow, spur ascending, nearly as long as the limb / lower pet. at length 

 pendent; pods erect, seeds lenticular. South- West. 



4. FUMARIA, L. FUMITORY. (Lat. fumus, smoke; from its dis- 

 agreeable odor.) Sepals 2, caducous ; petals 4, unequal, one of them 

 spurred at the base ; filaments in 2 sets, each with 3 anthers ; nut 

 ovoid or globous, 1-seeded and indchiscent. Lvs. cauline", finely dis- 

 sected. 



F. officinalis L. St. suberect, branched and spreading; Ivs. bipinnate; rac. 

 loose; sep. ovate-lanceolate, acute, about as long as the globous, retuse nut. 

 A small, handsome, smooth plant, 10 15' high, in sandy fields and about gar- 

 dens, introduced from Europe. Lfts. cut into segments, dilated upwards. Fls. 

 small, rose-colored, nodding, the pedicels becoming erect in fruit, and twice as long 

 as the bracts. JL, Aug. Eur. 



ORDER XIII. CRUCIFER^E. CRUCIFERS. 



620. A flower of Sinapis nijrra. 1. The stamens (4 long 

 and 2 short) and pistil. 2. Plan of the flower, stamens 

 in 2 rows, outer row half wanting. 3. A silique, 4. partly 

 open, showing the septum with seeds attached. 5. Cross 

 section of :\ seed, cfltyledons condnplicate (0). 6. Cross 

 section of :i seed of Capsella, the cotyledons incumhent (d |). 

 7. Section of a winced seed of Alibis Canadensis, cotyle- 

 dons accuuibent (0=). 



Herbs with a pungent, watery juice, and alternate, exstipulate leaves, with 

 flowers cruciform, tetradynamous, generally in racemes, and bractless. Sepals 4, 

 deciduous ; petals 4, hypogynous, with long claws and spreading limbs. Stamens 

 6, the 2 outer, opposite ones shorter than the 4 interior. Ovary 2-carpeled, 2-celled 



