MOUNTAIN FLOWERS 267 



This plant generally grows low upon the ground, the very 

 finely dissected foliage spreading out into large patches that 

 are gemmed by the clusters of golden-yellow flowers, whose 

 form at once suggests that of the Wild Bleeding-heart. When 

 the ripe pods split open they disclose and scatter numerous 

 bright shining seeds. 



TREACLE MUSTARD 



Erysimum par-c'ifloruin . Mustard Family 



Stems: erect, simple. Leaves: oblanceolate or linear, obtuse, entire, 

 or dentate, the upper sessile, the lower slender-petioled. Flowers : pale 

 yellow. Fruit: the siliques elongated, linear, four-angled, valves strongly 

 keeled by a prominent mid-vein. 



This common Treacle Mustard has very small pale yellow 

 flowers and rather whitish leaves, which latter grow in a tuft 

 at the base of the plant and also alternately all the way up 

 the stiff erect stems. The flowers have four tiny green sepals 

 and four yellow petals, which latter are cruciate, or set in the 

 form of a cross. The Treacle Mustard belongs to the Criici- 

 fcrce, or Mustard Family, all of whose members have four 

 cruciform petals. 



HEDGE MUSTARD 



Sisyvtbrium Hartwegianiim. Mustard Family 



Stems: slender. Leaves: pinnate ; leaflets lanceolate, obtuse and acutely 

 toothed. Flowers: small, yellow. Fruit: the siliques erect on ascending 

 pedicels, linear, elongated. 



A coarse uninteresting plant, with pinnately cut leaves, the 

 tiny leaflets being sharply toothed. The flowers are small and 

 yellow and the pods long and narrow. 



