138 



CKCCIFERE TUKNIP-FAjnLY. 



1. A. saxritilc. Hock Alyssum. 



Stem luffraUooM si base; leaves lanceolate, entire, downy; flowers numcr- 

 am. In dense, corymbose clusters; sillcle ovate-orbicular, i-*eeded; seeds with 

 margins. An early-flowering perennial, In gardens. April May. 



2. A. maritiraum. Sweet Alyssum. 



Stem snflrutleoee, uid procumbent t hue ; leaves linear-lanceolate, some- 

 what hoar/; flowers small, white, fragrant; pods oral, smooth. Gardens. 

 JiHUOd. 



. LCNAEIA. 



Sepals somewhat bi-accatc at base. Petals nearly entire. 

 Silielea pedicellate, elliptical, or lanceolate. Valves flat 



1. L. rediviva. Satin-flower. 



Pubescent ; stem erect, branching ; leaves orate, cordate, petiolate, mncro- 

 nateljr serrate ; flowers light purple ; sillcles lanceolate, narrowed at each end. 

 A garden plant, 23 feet high. Junt. Par. 



2. L. biennis. Honesty. 



Pubescent; stem erect; leaves cordate, with obtuse teeth; flowers lilac- 

 colored; silleles oval, obtuse at both ends, A garden plant, S 4 feet high. 

 Mat/ Junt. BimnllO. 



1. IBEEIS. 



The 2 outside petals larger than the 2 inner. Silicles com- 

 pressed, emarginate ; cells 1-eeeded. An. 



1. I. nmbellata. Purple Candy-tuft. 



Stem herbaceous, smooth ; leaves linear-lanceolate, acuminate; lower ones 

 serrate; upper ones entire ; flowers purple, terminal. In simple umbels ; slllclcs 

 umbellate, acutely 2-lobed. A common plant In gardens, growing 1 foot high. 



lanceolate, entire, or with a few rrpand teem, petlolate, or seats!* ; flowers 

 mostly large, white, in a terminal raceme; stHques long, dewier, spreading. 

 An elegant but very variable specie*, In meadows, V If high. April Hay. 

 A beautiful and strongly-marked variety has the stem erect, simple, hairy; 

 leaves petlolate, somewhat fleshy; the radical ones roundish, cordate, or renl- 

 form : caullne ones strongly repand-tootbed ; flowers large, deep rose-color, or 

 purple. In shady, damp places. W. New York. 



2. I. am;ira. White Candy-tuft. 



Stem smooth, herbaceous; leaves lanceolate, acute, somewhat dentate; 

 Bowers white, corymbed, becoming racemose; sillcles obcordate, narrowly 

 emarginate. Equally common with the last 1 foot high. June July. 



8. BAEIiAKEA. 



Sepals nearly equal at base. Silique 4-sided ; valves concave, 

 carinate. Seeds in a single genes. 



1. B. vulgaris. Winter Cress. 



Stem smooth, furrowed, branching above ; lower leaves lyrate ; the terminal 

 lobe roundish; upper ones obovate, plnnatlnd at base, crenate. or repandly 

 dentate ; flowers small, yellow, In terminal racemes, pedicellate ; slllques ob- 

 tusely 4-angled, slender, curved upward. Brook-sides and damp fields. Plant 

 1-S feet high, dark green. XayJune. 



. ARABI9. 



Sepals erect. Petals entire, with claws. Silique linear, com- 

 pressed, valves 1 -nerved in the middle. Seeds in a single row in 

 each c.-ll. 



1. A. Canadensiu. Sickle-pod. 



Stem slender, simple, smooth, sometimes pubescent below ; leaves oblong- 

 IsMiolate. narrowed at each end, with few teeth, or entire, generally pubescent, 

 malls; lower ones narrowed to a petiole, sometimes withering early ; flowers 

 small, white, racemose; slllqne falcate, pendulous, tipped with the style. Dis- 

 tinguished by the long, pendent pod, which, though nearly straight at first, 

 afterwards amnnn the form of a cutlass blade. Rocky woods, June. Per. 



10. CARDAMINK. 



Calyx somewhat spreading. Silique linear. Valves flat, 

 reinless, generally opening elastioally. Seeds ovate, without 

 margins, and with slender stalks. Mostly Per. 



\. C. hirsfita. Bitter Cress. 



Stem erect, branching, mostly smooth; leaves pinnate or lyralely plnnatlfld ; 

 leaflets of the lower ones oval, of the upper, narrowly oblong, the I. nnlnal 

 Innfasl, 8-lobed; Bowers small, white, racemose; sIHqn* lone, slender, erect, 

 tipped with a abort style. A variable, dark-green plant, common in wet grounds. 



2. C. rotnndifulia. American Water-cress. 



9 erect, simple, smooth ; lower leaves ovate, or almost orbicular, with a 

 fcw large, rapand teeth, on long pelMwi : upper one* varying from epatnlate to 



11. DaVrl 



Sepals converging. Silique lanceolate ; valves flat, nerveless, 

 opening H:Hi.Mlly; placenta not winged. Seeds in a single 

 row, without margins. 



1. D. laciniata. Tooth-irort. 



Ehlzoma nionlllf. inn ; stem simple, smooth, with 8 vcrtlclllate leaves ; leaves 

 8-parted ; lobes varying from lanceolate to linear, Inclsely toothed, often cut 

 so deep as to appear almost digitate ; teeth mncronale ; flowers large, purplish- 

 white, In terminal racemes; petals obovate-oblong. A pretty plant, from 612' 

 high In woods. Most common from N. E. westward. April May. 



2. D. dipbjlla. Pepper-root. 



Bhlzoma elongated, toothed, with s pungent, aromatic flavor; stem erect, 

 smooth, with 2 opposite ternate leaves about half way up on the stem ; leaflets 

 ovate, serrate, acute, smooth, petlolate ; flowers large, white, or very pale pur- 

 ple, In a termlna -aceme. Not common In & E. New England ; woods and 

 meadows. May. 



IS. HESPEBI9. 



Calyx cloNvL, furrowed at base. Petals linear or obovate, 

 bent obliquely. Silique nearly round ; or 4-sided and somewhat 

 compressed. Stigmas 2, erect, eonnivent Seeds somewhat 3- 

 sided, without margins. 



1. H. matronalis. Socket. 



Stem simple, erect; leaves ovate-lanceolate, denticulate, acute, on short, 

 margined petioles, slightly scabrous as well as the stem with scattered, bristly 

 hairs ; flowers large, purple, raccmed ; sillques erect, 2' (' long, smooth. A 

 garden perennial, growing 84 feet high. May July. 



18. SISVMBEIUM. 



Sepals equal at base. Petals with claws, entire. .Silique 

 somewhat terete; valves concave, Styli' very short Seeds 

 ovate. An. 



1. S. officinale. Hedge Mustard. 



Stem erect, more or lens pubescent, very brandling ; branches spreading ; 

 leaves rnncinate, hairy; the segments mostly at right angles to the mid-vein ; 

 flowers In slender, vlrgate racemes, very small, yellow ; slllqnes sessile, erect 

 pressed closely to the common peduncle. A common weed In cultivated field* 

 and waste places, growing 19 feet high. JunttSrptemtter. 



14. CHKIIlAXTHUB. 



Inner sepals gibbous at base. Silique round or compressed. 

 Stigma 2-lobed or capitate. Seeds flat, ovate, in a single series. 



1. C. Chriri. Wall-floinr. 



Stem somewhat suffrutleoee and decumbent at base, with angular branches ; 

 leaves lanceolate, entire or slightly toothed, acute, smooth ; flowers orange or 

 yellow, large, In corymbose clusters ; petals obovate ; slllqnes erect, acuminate. 

 A common garden plant posturing a pleasant fragrance. June. 



15. BINAPIB. 



Calyx spreading. Siliqne nearly round, with veined i 

 Style short, acute. Seeds sub-globose, in a single scries. An. 



1. S. nigra. Mustard. 



Stem erect, smooth, strlatc, branching, round ; lower leaves lyrate ; upper 

 linear-lanceolate, entire, smooth; flowers yellow, |' In diameter, racemose; 

 sepals pale yellow; slllques smooth, somewhat 4-alded, appressed, nearly 1' long ; 

 seeds small, globose, nearly black. Cultivated grounds and waste place*, grow- 

 ing 8-4 feet high. Junt July. 



It. MATTHlOLA. 



Calyx closed. Sepals bi-saccate at base. Siliquo terete. 

 Stigmas eonnivent, thickened or carinate on the bock. 



