CRUCIFEI^E. (MUSTARD FAMILY.) 61 



3. CORYDALIS, Vent. 



Corolla 1-spurred at the base (on the upper side), deciduous. Style per- 

 sistent. Pod many-seeded. Seeds crested or arilled. Flowers in racemes. 

 Our species are biennial, leafy-stemmed, and pale or glaucous. (The ancient 

 Greek name for the crested lark.) 



* Stem strict ; flowers purplish or rose-color with yellow tips. 



1. C. glatica, Pursh. (PALE CORYDALIS.) Kacemes panicled; spur of 

 the corolla very short and rounded ; pods erect, slender, elongated. Rocky 

 places ; common ; 6' - 2 high. May - Aug. 



# * Low, ascending ; /lowers yellow. 

 H- Outer petals wing-crested on the back. 



2. C. flavula, DC. Pedicels slender, conspicuously bracted ; corolla pale 

 yellow, 3 - 4" long, spur very short ; tips of the outer petals pointed, longer 

 than the inner ; crest 3 - 4-toothed ; pods torulose, pendulous or spreading ; 

 seeds acutely margined, rugose-reticulated ; aril loose. Penn. to Minn., and 

 southward. 



3. C. micrantha, Gray. Pedicels short and bracts small ; corolla pale 

 yellow, 4" long, with short spur and entire crest, or flowers often cleistogamous 

 and much smaller, without spur or crest, pods ascending, torulose; seeds 

 obtuse-margined, smooth and shining. N. Car., 111., Minn., and southward. 



4. C. crystallina, Engelm. Pedicels short, erect; corolla bright yel- 

 low, 8" long, the spur nearly as long as the body ; crest very broad, usually 

 toothed ; pods terete, erect, densely covered with transparent vesicles , seeds 

 acutely margined, tuberculate. S. W. Mo. and southward. 



-H- H- Outer petals merely carinate on the back, not crested. 



5. C. aurea, Willd. (GOLDEN C.) Corolla golden-yellow, tf long, the 

 slightly decurved spur about half as long, shorter than the pedicel; pods 

 spreading or pendulous, becoming torulose ; seeds obtuse-margined. Rocky 

 banks, Vt. to Penn., Mo., Minn., and westward. 



Var. OCCidentalis, Engelm. Flowers rather larger, the spur nearly as 

 long as the body : pods less torulose, on short pedicels ; seeds acutish on the 

 margin. Neb. and Kan. to W. Tex. and westward. 



4. FIT MA HI A, TourD. FUMITORY. 



Corolla 1-spurred at the base. Style deciduous. Fruit indehiscent, small, 

 globular, 1-seeded. Seeds crestless. Branched and leafy-stemmed annuals, 

 with finely dissected compound leaves, arid small flowers in dense racemes or 

 spikes. (Xame iromfumus, smoke.) 



F. OFFICINXLIS, L. (COMMON FUMITORY.) Sepals ovate-lanceolate, acute, 

 sharply toothed, narrower and shorter than the corolla (which is flesh-color 

 tipped with crimson) ; fruit slightly notched. Waste places, about dwellings. 

 (Adv. from Eu.) 



ORDER 10. CRUCIFER^E. (MUSTARD FAMILY.) 



Herbs, with a pungent watery juice and cruciform tetradynamous flowers -, 

 fruit a silique or silicle. Sepals 4, deciduous. Petals 4, hypogynous, 

 regular, placed opposite each other in pairs, their spreading limbs form- 



