248 PLANTS GROWING IN SANDY SOIL. 



linear. Stem : one to two feet high. The whole plant is covered with a soft 

 down. 



Nothing can be more bewitching than a stalk of these blue 

 flowers intermingled with their light green leaves. The helmet- 

 like petal of a deep purplish blue hangs over the others and 

 gives the blossoms an odd expression, as though they were 

 simply helmets and open mouths ; the latter just ready to snap 

 out any morsel of gossip that might be interesting to the 

 passers by. 



S. pilbsa, hairy skullcap, Plate CXXVIII, has opposite 

 roundish, or ovate leaves, and flowers growing in a short ra- 

 ceme with spatulate bracts. It is a taller species than the pre- 

 ceding and is more pubescent. The blossoms are smaller. 



S. lateri flora and S. galericulata, pages 126 and 127. 



BLUE-CURLS. BASTARD PENNYROYAL. 



Trichostima dichotonium. 



FAMILY COLOUR ODOUR RANGE TIME OF BLOOM 



Mint. Blue, turning to Fragrant. Mass, to Florida Late summer and 



purple, and westward. autumn. 



Flnvers : single ; axillary, or in raceme-like clusters at the ends of the 

 branches. Calyx: tubular; five-cleft. Corolla: two-lipped; five-divided; the 

 upper lobe deeply cleft. Stamens: four; curved; exserted with hairy fila- 

 ments. Pistil: one; style, two-lobed. Leaves: opposite, on short petioles; 

 lanceolate; entire; rather clammy. Stem: branching; clammy. 



Blue curls does its best to be agreeable and throws out an 

 abundance of bloom in the late summer. It is not, however, 

 very pretty, and it is to be doubted whether its fragrance is 

 wholly agreeable. The common name refers to its hair-like 

 curling filaments. 



HORSE-MINT. (Plate CXXIX.) 

 Mondrda punctacta. 



FAMILY COLOUR ODOUR RANGE TIME OF BLOOM 



Mint. Yellow and crimson. Strongly scented. New York to Illinois July-September. 



and southward. 



Flowers : whorled above the floral bracts. Calyx : short ; five-toothed. Co- 

 rolla: two-lipped; narrow in the throat; pale yellow, spotted with deep crimson. 

 Floral leaves: whorled; lanceolate; pinkish crimson, veined with a deeper 

 colour. 



