Jones: Flora of Illinois, 70. Fumariaceae 135 



1 . Flowers not white ; petals 4-6, fugacious. 



2. Flowers yellow; leaves pinnatifid; capsules dehiscent from the base; juice yellow. 

 3. Petals 18-25 mm. long; buds erect, ovoid; capsules ovoid, acute at each end, 



bristly-hirsute 2. St\)lophorurn 



3. Petals 8-13 mm. long; buds nodding, obovoid; capsules linear, glabrous.. 



3. Chelidonium 



2. Flowers red or pink; juice milky; capsules globose or pyriform, opening by 4-20 

 tooth-like lids under the margin of the discoid stigma 4. Papavcr 



1. Sanguinaria L. 

 S. canadensis L. Bloodroot. Woods, common. Apr. 



2. Stylophorum Nutt. 

 5". diphyllum (Michx.) Nutt. Celandine Poppy. Woods. Apr.-June. 



3. Chelidonium L. — Celandine 



C. ma'jus L. Occasionally found in waste places, roadsides, and woods, 

 usually near towns; nat. from Eur. May-Aug. 



4. Papaver L. — Poppy 

 1. Plant glaucous, glabrous; leaves lobed, clasping the stem; capsules globose; 



waste places, introd. from Eur. June- Aug. Opium Poppy 



P. somniferum L. 



1. Plant hirsute, not glaucous; leaves pinnate, tapering to the petioled base; 



capsules obovoid or turbinate; waste places, introd. from Eur. May-July. 



Com Poppy P. rhoeas L. 



70. Fumariaceae DC. — Fumitory Family 



1. Corolla with each of the two outer petals spurred or saccate at the base; capsules 



several-seeded 1 . Dicenlra 



1. Corolla with only one petal spurred. 



2. Flowers yellow or pinkish; capsules linear, several-seeded, dehiscent; style p)er- 



sistent 2. Cor^dalis 



2. Flowers deep purple tipped with crimson; pods globose, 1 -seeded, indehiscent, 

 glabrous, minutely tuberculate; style deciduous 3. Fumaria 



1. Dicentra Bemh. 



{Bicuculla Adans.) 



1. Corolla with 2 divergent spurs; mner petals minutely crested; flowers not 

 fragrant; stem from a bulb-like corm; woods, common. Apr.-May. 

 Dutchman's-breeches D. cucullaria (L.) Bernh. 



1 . Corolla heart-shaped, the spurs short and rounded; crests of the inner petals 

 conspicuous, projecting; flowers fragrant; stem from a short horizontal 

 rhizome bearing small whitish or yellowish corms; woods, usually less 

 common than the preceding species, beginning to flower a week or ten 

 days later. Squirrel-corn D. canadensis (Goldie) Walp. 



2. CORYDALIS Vent. 

 (Capnoides Adans.) 



1. Flowers 5-9 mm. long, pale yellow; outer petals crested on the back. 



2. Crest of the petals dentate; capsules pendulous, on slender pedicels 1-1.5 



