ONAGltAOEJfi (EVENING-PRIMROSE FAMILY.) 131 



Seeds naked. Leaves alternate. (Name from oii/os, ivine, and (%xx, a cnase: 

 x the application uncertain.) 



t 1. Annuals or biennials : floicers nocturnal, odorous, withering the next day: pcxh 

 cylindrical, closely sessile. 



1. CE. biennis, L. (COMMON EVENING-PRIMROSE.) Erect, mostly 

 hairy ; leaves ovate-lanceolate, acute, obscurely toothed ; flowers in a terminal 

 rather leafy spike ; calyx-tube much prolonged ; petals inversely heart-shaped 

 (light yellow) ; pods oblong, somewhat tapering above. Varies greatly; as 

 Var. 1. MURICATA, with rough-bristly stem and pods, and petals rather longer 

 than the stamens. Var. 2. GRANDIFLORA, with larger and more showy petals 

 Var. 3. PARVIFLORA, with petals about the length of the stamens. Var. 4 

 CRUCIATA, with singularly small and narrow linear-oblong petals, shorter than 

 the stamens, and smooth pods. Common everywhere. June - Sept. 



2. CE. rllOIIlbipetala, Nutt. Petals rhombic-ovate, acute; calyx-tube 

 very slender ; pods short, cylindrical : otherwise resembling a smoothish and 

 narrow-leaved state of No. 1. Wisconsin, Illinois, and southwestward. 



3. CE. Simiata, L. Hairy, low, ascending, or at length procumbent; 

 leaves oblong or lanceolate, sinuate-toothed, often pinnatifid, the lower petioled ; 

 flowers (small) axillary; petals not longer than the stamens (pale yellow, rose- 

 color in fading) ; pods cylindrical, elongated. Sandy fields, New Jersey and 

 southward, principally a dwarf state. June. 



$ 2. Biennials or perennials : flowers diurnal (opening in sunshine], yellow : pods 

 club-shaped, with 4 strong or winged angles and 4 inteiinediate ribs. 



4. CE. glaiica, Michx. Very glabrous, glaucous; leaves ovate or ovate- 

 lanceolate; pods obovoid-oblong, 4-winged, almost sessile. 1J. Mountains of 

 Virginia, Kentucky, and southward. May - July. Leaves broader and flow- 

 ers larger than in the next. 



5. CE. fruticosa, L. (SUNDROPS.) Hairy or nearly smooth; leaves 

 lanceolate or oblong ; raceme corymbed, naked beloAV ; petals broadly obcordate, 

 longer than the calyx-lobes and stamens ; pods oblong-club-shaped, 4-winged, longer 

 than the pedicels. 1J. Open places, from New York southward and westward. 

 June- Aug. Plant l-3 high, with several varieties. Corolla 1^ broad. 



6. CE. riparia, Nutt. Scarcely pubescent; leaves linear-lanceolate, ekn- 

 yated, tapering below and somewhat stalked; flowers (large) in a rather leafy at 

 length elongated raceme ; petals slightly obcordate ; pods oblong-club-shaped, slcn- 

 der-pedicelled, scarcely ^-winged. @ Kiver-banks and swamps; Quaker Bridge, 

 New Jersey, to Virginia and southward. 



7. CE. linearis, Michx. Slender, minutely hoary -pubescent ; leaves 

 ^inear ; flowers (rather large) somewhat corymbed at the end of the branches, 

 pods obovate, hoary, scarcely 4-winged at the summit, tapering into a slender pedicel 

 Montauk Point, Long Island, to Virginia and southward. June. Plant 1 

 high, bushy-branched? flowers 1' wide. 



8. CE. clirysailtlia, Michx. Slender, smooth or pubescent; leaves lan- 

 ceolate, rather blunt ; flowers crowded or at first corymbed ; petals obovate, notched 

 at the end (ora^e-yelloiv], longer than the stamens ; pods all pedi celled, oblong club- 



