270 PLANTS GROWING IN DRY SOIL. 



The evening primrose is then in its glory ; the next day its 

 fragile petals are wofully faded. 



SCAPOSE PRIMROSE. (Plate CXL.) 

 P achy tophus ccespitbsus. 



FAMILY COLOUR ODOUR RANGE TIME OF BLOOM 



Evening primrose. W kite or pink. Scentless, Nebraska south- June, July. 



ward and westward. 



Flowers: large; one and a half to five inches broad; terminal; solitary. 

 Calyx : with four linear sepals. Corolla : with four obcordate, spreading petals. 

 Stamens: eight, with linear anthers. Pistil : one; stigma, four-cleft, fruit: 

 growing in a cluster at the base. Leaves ; from the base; lanceolate; tapering 

 into a slender petiole ; pubescent. Flower-stalks: ciliate, or beset with white 

 hairs. 



It is owing to the growth of the fruit of this superb flower 

 that it has been separated from the (Enothera division of the 

 primrose family, and no longer bears the name of CEnothera 

 marginata, as it did at one time. The plant from which the 

 illustration was drawn was a particularly well developed and 

 perfect specimen. The blossoms were fully five inches in dia- 

 meter. Near the Blue Mountains and about the Salmon Falls 

 of the Snake River, they unfold generously their silken petals. 



ALLEN'S SUNDROPS. 



Knetffia Allen i. 



FAMILY COLOUR ODOUR RANGE TIME OF BLOOM 



Evening' primrose. Pale yellow. Scentless. Eastern Long Island. Suttii/tt'r. 



Flowers : on long pedicels in loose corymb-like clusters. Calyx : with a long 

 tube and four lobes. Corolla: of four rounded petals. Stamens: eight 

 with lorg versatile anthers. Pistil: one ; stigma, four-branched. Leaves: 

 alternate ; lanceolate. Stem : branched ; leafy ; somewhat rough. Pods ; cu- 

 cumber-shaped ; four angled at the top. 



An open dry place that is brightened by clusters of these 

 flowers appears as though the sun were dancing among the 

 green leaves of the plant. The blossoms are slightly deeper in 

 colour than those of the evening primrose and remain open in 

 the sunshine. Probably they do not depend upon the pink 

 night moth for fertilization as they are without the fragrance 

 that attracts him to the evening primrose. They are very 

 perishable and droop shortly after being picked. 



