PAPAVERACEuE. (POPPY FAMILY.) 59 



with a white juice ; the flower-buds nodding. (Derivation obscure.) Three 

 annual species of the Old World are sparingly adventive ; viz. : 



1. P. soMNfFERUM, L. (COMMON POPPY.) Smooth, glaucous ; leaves 

 clasping, wavy, incised and toothed ; pod globose ; corolla mostly white or pur- 

 ple. Near dwellings in some places. (Adv. from Eu.) 



2. P. DtisiUM, L. (SMOOTH-FRUITED CORN-POPPY.) Pinnatifid leaves 

 and the long stalks bristly ; pods dub-shaped, smooth ; corolla light scarlet. 

 Cult, grounds, Westchester, Penn. and southward : rare. (Adv. from Eu.) 



3. P. ARGEM6NE, L. (ROUGH-FRUITED C.) Smaller, with finer-cut 

 leaves and paler flowers than the last ; pods club-shaped and bristly. Waste 

 grounds, near Philadelphia, Mr. Dieffenbaugh. (Adv. from Eu.) 



2. ABGEMONE, L. PRICKLY POPPY. 



Sepals 2 or 3, often prickly. Petals 4-6. Style almost none : stigmas 3 - 

 6, radiate. Pod oblong, prickly, opening by 3 - 6 valves at the top. Seeds 

 crested. Annuals or biennials, with prickly bristles and yellow juice. Leaves 

 sessile, sinuate-lobed, and with prickly teeth, often blotched with white. Flower- 

 buds erect, short-peduncled. (Name from dpye'/xa, a disease of the eye, for 

 which the juice was a supposed remedy.) 



1. A. MEXICANA, L. (MEXICAN P.) Flowers yellow, rarely white. 

 Waste places, southward. July -Oct. (Adv. from trop. Amer.) 



3. STYLOPHOE.UM, Nutt. CELANDINE POPPY. 



Sepals 2, hairy. Petals 4. Style distinct, columnar: stigma 2-4-lobed. 

 Pods bristly, 2 - 4-valved to the base. Seeds conspicuously crested. Peren- 

 nial low herbs, with stems naked below and oppositely 2-leaved, or sometimes 

 1 - 3-leaved, and umbellately 1 - few-flowered at the summit ; the flower-buds 

 and the pods nodding. Leaves pinnately parted or divided. Juice yellow. 

 (Name from orvAos, style, and <epo>, 1 bear, indicating one of the distinctive 

 characters.) 



1. S. diph^llum, Nutt. Leaves pale or glaucous beneath, smoothish, 

 deeply pinnatifid into 5 or 7 oblong sinuate-lobed divisions, and the root-leaves 

 often with a pair of smaller and distinct leaflets; peduncles equalling the 

 petioles; flower deep yellow (2 ; broad) ; stigmas 3 or 4 ;. pod oval. Damp 

 woods, W. Penn. to Wisconsin, and southward. May. Foliage and flower 

 resembling Celandine. 



4. CHELIDONIUM, L. CELANDINE. 



Sepals 2. Petals 4. Stamens 16-24, Style nearly none : stigma 2-lobed. 

 Pod linear, slender, smooth, 2-valved, the valves opening from the bottom up- 

 wards. Seeds crested. Perennial herb with brittle stems, saffron-colored acrid 

 juice, pinnately divided or 2-pinnatifid and toothed or cut leaves, and small yel- 

 low flowers in a pedunculate umbel ; the buds nodding. (Name from \ f AiSobv, 

 the Sivallow, because, according to Dioscorides, it begins to flower at the time 

 the swallows appear.) 



