LASTHENIA LAVATERA LEPTOSIPHON. 189 



habit of supporting them with brush, which looks very un- 

 sightly before it is covered with the vines. 



The Sweet Pea will grow five or six feet high, in rich 

 ground, and continue in bloom from July to October. The 

 seed should be sown as soon as the ground is in order in the 

 spring. 



LASTHENIA. 



Lasthenia glabrata. A yellow flower, from California, 

 somewhat in the style of a small Sun-flower ; not likely to 

 become very popular. 



LAVATERA. 



Lavateria, in memory of two Lavaters, physicians of 

 Zurich. The species resemble those of Malva, in general 

 appearance and culture. 



L. trimestris. Common Lavatera. A popular hardy an- 

 nual, of easy culture, and handsome appearance, flowering from 

 July to September ; one variety with white, and another with 

 pink, flowers ; two feet high. 



LEPTOSIPHON. 



Leptosiphon androsaceus Androsace-like Leptosiphon. 

 The name of the genus now before us is derived from the Greek 

 words lepios, slender, and siphon, a tube. Its application is 

 evident. 



This is a very pretty hardy annual, of humble growth, vary- 

 ing, in the color of its flowers, from white to pale pink, or pur- 

 ple. It is a valuable little plant for flowering early in the sum- 

 mer from auturnn-sown seeds. 



The physiologist may be recommended to examine the leaves 

 of this plant, which are deeply divided into segments, always 

 consisting of an even number, as four, six, eight, &c. 



