Ohdee 52.— evening PRIMROSES. 203 



* Flowera 2-partecl, with 2 sepals, 2 petals, &o f 



* Flowers 1-parted, with 1 stamen, 1 pistil, 1 seed (no petal) h 



2 Mowers perfect (that is, having both stamens and pistils) 8 



2 Flowers moncBcious (some with stamens, some with pistils) o 



3 Stamens 8, twice as many as the sepals 4 



8 Stamens 4, same number as the sepals d 



4 Calyx tube much prolonged above the ovary 5 



4 Calyx tube not prolonged above the ovary a 



5 Garden exotics, with showy purple flowers. . . .o 



5 Wild, native herbs, rarely cultivate^ b 



a Seed coraons with a tuft of silky hairs. Fls. purplish. Willow ITeri. EpiLo'BrnM. . 1 

 a Seed not eomous, &c. Fls. large, yellow. Southern. Yellou) Jessie. JussLai'A, 

 b Petals equal, not clawed, yellow. Pods co-seeded. 



Evening Primrose. CEnothe'ea. 2 



b Petals hardly equal, clawed, red. Pods 1-4-seeded. Gaura. Gaura. 



c Herbs from Ciilifornia. Calyx tube short. Petals clawed. Olarkia. Clae'kia. 



c Shrubs from Chili. Cal. tube long, enlarged. Fls. hanging. Ear-drop. 'Evcs'sik. 



d Petals yellow, sometimes minute o»0. Lvs. entire. Seed Box. Ludwig'ia 



e Petals greenish or none. Leaves many-cleft. Water-plants. 



Water Milfoil. Mtriophyl^lcm. 

 f Delicate herbs with small, pale flowers. EnchanterU Nightshade, Cieo^'a. 8 

 g Small herbs in wet places, with pinnatifid lvs. Mermaid Weed. PEosEKPijfA''oA. 

 h In water, rare. Leaves linear, whorled. Mare^s Tail. Hippu'kis. 



1. EPILO'BIUM. "WiHow-herb. 

 Oalyx tube not prolonged above the ovary. Limb deeply 4-parted, de- 

 ciduous. Petals 4. Stamens 8. Stigma often witb 4 spreading lobes. 

 Ovary and capsule linear, 4-oornered, 4-celled, 4-valved. Seeds crowned 

 witb a tuft of long hairs. — 1( Flowers purplish or white. 

 B. angustifo'limn. Narrow-leamd Willow-Aeri. Bose-bay. A tall, showy herb (4- 

 6f. high), common at the North. Leaves narrow-lanceolate, nearly entire, with 

 a vein mnning along the margin. ' Flowers large, all parts pale purple or white, 

 in a long, terminal spike. Style and stamens declined. Stigma with 4.1ong 

 lobes. July, Aug. Onr fotir other species, with small flowers, and a ■club- 

 shaped, undivided pistil, we omit, 



2. (ENOTHE'EA. Evening Primrose. 



Oalyx tube prolonged beyond the ovary, deciduous: segments 4, re- 

 flexed. Petals 4, equal, obcordate or obovate, inserted into the top of the 

 calyx tube. . Stamens 8. Capsule 4-celled, 4-valved. Stigma 4-lobed, 

 Seeds not tufted.— Herbs with alternate leaves, and yellow flowers (in aU 

 the following species). May, Aug. 



