104 CKUCIFKR.E. 



less. Seeds very siiuxU, tiirgiil ami wingless, usually numerous, in two rows in ^ach cell 

 (scarcely so in N. si/Uestre), minutely tuberculate or in a few species reticulate-pitte.l. 



35. BARBAREA. Flowers somewhat larger than in the preceding. Sepals oblon^', often 

 colored; lateral pair often saccate at base and slightly cornute on the back near apex. 

 Petals spatulate or witli obovate blades and slender claws. Stamens 6, free and unat>pen- 

 daged, distinctly tetradynamous. Style short; stigma bifid. Capsule linear, elongated, 

 somewhat tetragonal. Seeds uniseriate in the cells. 



■1— -)— •)— Flowers purple : pods linear, elongated. 



36. lODANTHUS. SepaLs oblong, shorter than the claws of the petals, somewhat spread- 

 ing in anthesis; the lateral pair narrower and more or less distinctly liurned or appendagtd 

 upon the back near ape.\. Fetals broadly s))atulate. Stamens 6, strongly tetradyjiamous 



♦ * Pods more or less strongly compressed parallel to the partition, 

 -t— Petals toothed or lobed : fruit narrowly linear, elongated. 



37. DRYOPETALON. Sepals elliptic, purplish ; the lateral gibbous at l)ase. Petals 

 exserted * the blade toothed or lobed. Stamens 6, free and unappendaged ; anthers ovate- 

 oblong. Stigma nearly sessile, 2-lobed. Seeds many, small, somewhat 2-rowed ; cotyledons 

 nearly accumbent. Valves of capsule l-uerved and veined. 



4— -i— Petals entire or retuse, not lobed. 

 ++ Pods suborbicular : seeds broadly winged : pubescence simple. 



38. PLATYSPERMUM. Flowers minute, solitary, borne on naked'scapes. Sepals broad, 

 -erect, equalling the white linear-spatuhite petals. Seeds in two rows, reticulated; cotyle- 

 dons longer than the radicle. Leaves lyrate, few-lobed or subentlre. 



■w- -H- Pods broad, lanceolate to elliptic or oblong : seeds mostly biseriate. 



39. SELENIA. Flowers conspicuous, yellow, in a leafy bracteate raceme. Sepals erect, 

 ovate-lanceolate, acutish, somewhat saccate at base. I'etals spatulate. Stamens 6, free and 

 unappendaged; anthers oblong. Pods oblong to broadly elliptic, upon short Ijroad stipes, 

 and beaked by slender styles. Stigma capitate. Glands 10. Seeds in two rows, minutely 

 pitted and margined with a thin cartilaginous wing. Cotyledons longer than the radicle. " 



40. PARRY A. Flowers showy, purple or rose-colored. Sepals oblong, erect ; t!ie lateral 

 gibbous at base, nearly equalling the claws of the broad-bladed petals. Anthers included, 

 oblong, subsagittate at base. Pod with flat 1-nerved reticulated valves. Stigma 2-lobed ; 

 lobes approximate. Seeds orbicular, winged or wingless. 



■H- ++ ++ Pods narrower, linear-oblong to linear. 

 = Pubescence simple or none. 



41. LEAVENWORTHIA. Flowers conspicuous, yellow, whitish, or purplish. Sepals 

 linear-oblong, equal at base, usually spreading in anthesis, considerably exceeded by the 

 obovate or oblanceolate cuneate petals. Stamens 6, strongly tetradynamous, free and 

 unappendaged ; anthers oblong. Pod oblong or linear, beaked by a rather slender style, 

 sometimes tornlose. vStigma somewhat 2-lobed. Seeds in one row, minutely ])itted, 

 margined with a firm thick wing. Cotyledons orbicular; radicle short and straight or more 

 or less oblique. 



42. DENTARIA. Sepals equal at base, erect or nearly so. Petals much longer, with 

 slender claws and ovate spreading blades. Pods linear, straight with stout rcplum, firm 

 nerveless flat valves, and nerveless partition ; stigma short, cajjitate or rarely 2-l<)be<l. Seeds 

 in one row, wingless Cotyledons often thick, more or le.ss unequal and somewhat oblique, 

 petiolate. Funiculus often thickenSd in fruit. 



48. CARDAMINE. Sepals equal at base, erect or more or lo.'^s spreading. Petals obovate 

 to narrowly spatulate. Pods of the preceding. Seeds in one row, wingless; cotyledons 

 flattened, strictly accumbent or one slightly overlapping the radicle, more or less petiolate. 

 Funiculus very slender. 



= = Pubescence in part or wholly branched. 



44. ARABIS. Sepals erect or nearly so, green or less frequently colored ; the lateral pair 

 usually gibbous at base. Petals obovate or spatulate, usually unguiculate, commonly con- 



