0NAGRACE2E. 113 



S inches lone, gradually acuminate or acute at apex, on short petioles. Flower* 

 in axillary "sub-sessile umbels, apparently whorled, constituting a long, leafy, 

 •wminal and showy panicle. 1'etals 5 to 6, large, and of a fine purple. 



CT7PHEA. Jacq. 



Or. luphos, curved ; in reference to the form of the calyx. 



Calyx tubular, 12-ribbed, somewhat inflated below, gib- 

 bous or spurred at the base, on the opposite side, 6-toothed 

 at the apex, with usually as many little intermediate pro- 

 cesses. Petals 6 to 7, unequal. Stamens mostly 12, 

 approximate in 2 sets, included, unequal. Style filiform. 

 Stigma 2-lobcd. Capsule membranaceous, 1 to 2-celled, 

 few-seeded. — Herbaceous or half shrubby plant*, with apposite 

 entire leaves, and axillary and terminal flowers. 



C. viscosissima, Jacq. Clammy Ciqihea. 



"Viscid-pubescent: leaves opposite,, ovate-lanceolate, long-stalked, rough ; ficwert 

 lateral, and solitary, on short peduncles; petals ovate, short-clawed. 



Fields and roadsides. July, Aug. Annual. Stem 10 to 15 inches high, erect, 

 branching. Leaves 1 to 2 inches long, % as wide, on petioles ]4 to Vi incn lor -K- 

 Calyx often purple, Tentricose. Petals violet-colored. Stamens included. UapsttU 

 VurstLng lengthwise before the seeds are ripe. 



Order 43. 0NAGRACE2E?. 



Herbaceous plants or shrubs, with simple alternate or opposite leave*, and axillary 

 tcrminul flowers of various colors. Tktals 4, (sometimes 2 or 3). Stamsns 1 — 2 — 8 

 Inserted with the petals into the throat of the calyx. Ovary 2 to 4-celled, cohering 

 ■with the calyx-tube; placent.e in the axis. Fkuit baccate or capsul&r, 2 to 

 ^celled, many seeded. There are two sub-orders. 



Sub-order I. ONOGRACEiE proper. 



Calyx-tube often prolonged beyond the ovary, the petals 

 and stamens inserted on its summit. Stamens 2 — 4 — 8. 

 Styles single, slender. Stigma 2 to 4-lobed, or capitate. 

 Ovary 4-celled. Seeds without albumen. 



1. EPILOBIUM. Linn. Willow-herb. 



Gr. epi, uxon, labou, a pod, ion, a violet, viz : a violet on a pod. 



Calyx-tube not prolonged beyond the ovary, 4-sided; 

 hmb 4-parted, deciduous. Petals 4. Stamens 8. Ae- 

 thers short, fixed by the middle. Stigma often .with 4 

 epreading lobes. Ovary and capsule linear, 4-cornered, 

 4-celled ; 4-valved. Seeds numerous, crowned with a tuft of 

 U* 



