(ENOTHERA triloba. 

 Dandelion-leaved Evening Primrose. 



Class and Order. — Octandria Monogynia. 

 Syn. (Enothera triloba. Curt. Bot. Mag., pi. 25G6. 



Root biennial ? spindle-shaped — leaves radical, lyrate, dentate, smooth, middle 

 rib strong — flower radical, rising from amongst the bright green 

 leaves — calyx tubular — four segments, lanceolate, acute — corolla pale 

 delicate yellow — petals four, slightly trilobed, undulate — stamens 

 eight — filaments shorter than the petals — anthers oblong, bright yellow 

 • — 'Style a little longer than the stamens — stigma four-cleft — capsule 

 radical, sessile, containing four cells. 



The specific name of this very interesting; plant was given by 

 Professor Nuttal, in conseqnence of what he considered the three- 

 lobed form of its petals ; this is however so very slight as to be scarcely 

 observable, and therefore perhaps ougflit not to be considered a specific 

 distinction. It was discovered by the Professor in the Arkansas 

 country, in 1819, and seeds were afterwards brought by that iude- 

 fatio;able traveller and naturalist, Mr. I). Douglas, from North 

 America, in 1824. This plant, which has a succession of flowers 

 throug-hout the Sunnner, is extremely liable to decay, if not kept dry 

 in the Winter ; but it may be raised fi'om seed, or by parting- the roots 

 in Autumn, and keeping- them in a frame, in pots of lig;ht dry soil, 

 giving; them very little or no water until the roots begin to shoot in 

 the Spring. This is the best method of increasing the ffi. cespitosa, 

 a most lovely plant, but extremely difiicult to propagate. There are 

 numerous species and varieties of this very interesting genus : some of 

 the most beautiful are — 



QD. frutiosa. CE. glauca. 



— speciosa. — graudiflora. 



— acaulis. — amaena. 



— rosea. — tenella. 



— pallida. — viminea. 

 PI. 2-2. 



