282 YELLOW TO ORANGE 



and crannies between the rocks, where the sparse dry soil 

 affords little or no sustenance to the roots ; hence its ability 

 to imbibe and retain moisture through its leaves renders it fit 

 to flourish on these sandy and stony slopes. 



YELLOW WILLOW-HERB 



Epilobium luteum. Evening Primrose Family 



Stems: slender, nearly simple. Leaves: ovate, acute, sinuate-toothed, 

 sessile. Flowers: from the axils of the upper somewhat crowded leaves ; 

 corolla funnel-form, rarely expanding, the lobes deeply notched ; calyx 

 short and deeply cleft. 



The pale lemon-coloured flowers of the Yellow Willow-herb 

 grow in quantities near running water, or in the deep moist 

 valleys where the rushes whisper in their husky throats and 

 the moss weaves lace-like patterns to cover the ground. The 

 plant stands from six inches to two feet high, and has large, 

 conspicuously veined leaves, with wavy margins, which are 

 very sharply toothed. The flowers are extremely pretty and 

 delicate in hue ; their four petals, folded in funnel-form, rarely 

 expand, and are held up in green calyx-cups, which in their 

 turn are cleft into four narrow slender divisions. 



EVENING PRIMROSE 



(Enothera biennis. Evening Primrose Family 



Stems: erect, stout, wand-like. Leaves: lanceolate, acute, narrowed 

 and sessile at the base, repand-denticulate. Flowers: spicate, terminal, 

 leafy-bracted ; calyx-tube slender, the lobes linear, reflexed. 



The Evening Primrose, whose bright yellow blossoms open 

 in the twilight, somewhat resembles the Yellow Willow-herb, 

 whose paler flowers bloom at the bidding of the sunshine. 

 Seen in the daytime, the Evening Primrose appears faded and 

 uninteresting ; but viewed at night, its fragrant flowers are 

 exceedingly attractive. The plant grows to an average height 



