ONAGRACE^E. (EVENING-PRIMROSE TAMIL V.) 



scarcely winy-anykd. @? Banks, Oswcgo, New York, to .Michigan 

 ami northward. July. Stem 12' -15' high; flowers larger than in No. 9, 

 from which it may not be distinct. 



9. <E. pillllila., L. Almost smooth, small ; leaves lanceolate or obhinccolate, 

 mostly obtuse; flowers in a loose and prolonged leafy racem<- : -n-thite 



(/ni/c ydloic), scarcely longer than the stamens ; pods almost scsm'li', oblong-club- 

 shaped, strongly wing-angled. (2) or 1|. ? Dry fields, common northward, 

 iitnl southward along the Alleghanies. June. Stems mostly simple, .V - 12' 

 high : the corolla ' broad. 



3. GAIJRA, L. GAURA. 



Calyx-tube much prolonged beyond the ovary, deciduous ; the lobes 4 (rarely 

 3), rcflexed. Petals clawed, unequal or turned to the upper side. Stamens 

 mostly 8, often turned down, as also the long style. Stigma 4-lobcd. Fruit 

 hard and nut-like, 3-4-ribbed or angled, indehiscent or nearly so, usually be- 

 coming 1 -celled and 1 -4-secded. Seeds naked. Leaves alternate, sessile. 

 Flowers rose-color or white, changing to reddish in fading, in wand-like spikes 

 or racemes; in our species quite small (so that the name, from yavpos, sn/:: ri>, 

 dix's not appear very appropriate). 



1. G. bieniliS, L. Soft-hairy or downy (3 -8 high); leaves oblong-lance- 

 olittc, acute, denticulate ; fruit oval or oblong, nearly sessile, ribbed, (g Dry 

 banks, from New York westward and southward ; common. Aug. 



2. G. ftlipCS, Spach. Nearly smooth ; stem slender (2 -4 high) ; Icam 

 liii'-dr, mostly toothed, tapering at the base ; branches of the panicle very slen- 

 der, naked ; fruit obovate-club-shaped, 4-angled at the summit, slendcr-jicdlccllcd. 



Open places, from Ohio westward and southward. Aug. 



4. JlTSSIJSfcA, L. JUSSIJEA. 



Calyx-tube elongated, not at all prolonged beyond the ovary ; the lobes 4-6, 

 herbaceous and persistent. Petals 4-6. Stamens twice as many as the petals. 

 Pod 4-G-celk-d, usually long, opening between the ribs. Seeds very numerous. 



Herbs with mostly entire and alternate leaves, and axillary yellow llowu-s. 

 (Dedicated to Barnard de Jussieu, the founder of the Natural System of Botany 

 as further developed by his illustrious nephew.) 



1. J. dccurrcns, DC. Glabrous; stem erect (1- 2 high), branching, 

 winged by the de-current lanceolate leaves; calyx-lobes 4, as long as the petals; 

 stamens 8; pod oblong-club-shaped, wing-angled. 1J. Wet places, Virginia, 

 Illinois, and southward. June -Aug. See addend. 



5. LUDWIGIA, L. FALSE LOOSESTRIFE. 



Calyx-tube not at all prolonged beyond the ovary ; the lobes 4, usually per- 

 sistent. Petals 4, often small or wanting. Stamens 4. Pod short or cylindri- 

 cal, manv-seeded. Seeds minute, naked. Perennial herbs, with axilltliy 

 (rarely capitate) flowers. (Named in honor of Ludwig, Professor of Botany at 

 Leipsic, contemporary with Linnseus.) 



