134 LYTHRACEiE. (LOOSESTRIFE FAMILY.) 
usually as many little processes in the sinuses. Petals 6, very un¬ 
equal. Stamens mostly 12, approximate in two sets, included, 
unequal. Ovary with a curved gland at the base next the spur of 
the calyx, 1 - 2-celled : style slender : stigma 2-lobed. Pod ob¬ 
long, few-seeded, early opening through one side. — Flowers 
solitary, stalked. (Name from Kv<pos , curved , from the shape of 
the calyx, &c.) 
1. C. viscosissima, Jacq. (Clammy Cuphea.) Annual, very 
viscid-hairy, branching; leaves ovate-lanceolate, long-stalked, rough ) 
petals ovate, short-clawed, purple. — Dry fields, New York to Penn., 
common southward. Aug. — Seeds rather large, borne on one sk e 
of the placenta (the partitions early vanishing), which is forced out 
the pod and the investing calyx through a longitudinal rupture, be ore 
the seeds are ripe. 
Order 41. ONAGRACEiE. (Evening Primrose Fam.) 
Herbs , with 4 -merous (sometimes 2 - S-merous) flowers , 
the tube of the calyx cohering with the 2 — 4- celled ovary , 
its lobes valvate in the bud , or obsolete , the petals convolute 
in the bud , and the stamens as many or twice as many as 
the petals or calyx-lobes . — There are two suborders, viz. 
Suborder I. ONAGRACEjE proper. 
Calyx-tube often prolonged beyond the ovary; the petals (rarel) 
wanting) and stamens inserted on its summit. Pollen-grains connec 
ed by cobwebby threads. Style single, slender: stigma 2 - 4- o e 
or capitate. Pod loculicidally 4-celled and 4-valved, or indehiscent. 
placentae in the axis. Seeds anatropous, no albumen. 
1. Epilobium. Stamens 8. Petals 4. Seeds with a downy tuft at 
the apex. , 
2. GEnothera. Stamens 8. Petals 4. Calyx-tube prolonged. bee 3 
naked, numerous. , 
3. Gaura. Stamens 8. Petals 4. Calyx-tube much prolonged. 01 
1 - 4-seeded, indehiscent. 
4. Ludwigia. Stamens 4. Petals 4, or none. Calyx-tube not pr 
longed. Pod many-seeded. 
5. Circjea. Stamens 2. Petals 2. Pod 2-seeded. 
Suborder II. HALORAGEjE. 
Calyx-tube not at all prolonged, the lobes obsolete or none. 
often none. Stamens 1-8. Pod or nut indehiscent, 1 - 4 -ce e i 
