ONAGRACE2E. (EVENING-PRIMROSE FAMILY.) 131 



Seeds naked. Leaves alternate. (Name from olvos, wine, and Qfjpa, a chase . 

 the application uncertain.) 



$ 1. Annuals or biennials: flowers nocturnal, odorous, withering the next day : pods 

 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. GRANDIFIX!>RA, with larger and more showy petals. 

 Var. 3. PARVIFL6RA, with petals about the length of the stamens. Var. 4. 

 CRUCIA.TA, with singularly small and narrow linear-oblong petals, shorter than 

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



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

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

 narrow-leaved state of No. 1. Wisconsin (Dr. Parry) and southwestward. 



3. CE. simifita, 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 intermediate ribs. 



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

 lanceolate; pods obo void-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. fmticosa, L. (SUNDROPS.) Hairy or nearly smooth; leaves 

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

 longer than the calyx-lobes and stamens ; pods oblong-dub-shaped, ^-winged, longer 

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

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



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

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

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

 der-pedicelled, scarcely 4-winged. Elver-banks and swamps ; Quaker Bridge, 

 New Jersey, to Virginia and southward. 



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

 linear ; 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. clirysantlia, Michx. Slender, smooth or pubescent ; leaves Ian 

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

 at the end (orange-yellow), longer than the stamens ; pods all pedicelled, oblong-club- 



