108 
BEAUTIFUL GARDEN FLOWERS. 
blossoms, varying in different forms ; M. dissitiflora, 
deep sky blue, witli many varieties including a white 
one ; M. sylvatica, 1 to 2 feet liigb, with bright-blue 
flowers, may lie treated as a biennial, and the same 
may be said of M. Welwitschi (or cintra), a tufted 
plant about 4 inches high, with bright-blue flowers. 
NEMOPHILA. — These popular and showy annuals 
flourish in any good soil, and may be raised from 
seeds sown about March in gentle heat, and in the 
open ground in April. The best species are N. insignis, 
about 18 inches high, with pinnately cut leaves, 
and sky blue, white, purple, rose, or striped flowers, 
according- to variety. N. Menziesi (or Atomaria) , 4 to 
8 inches high, has white or pale blue flowers speckled 
with black. There are several varieties of it, such as 
alba, oculata, coelestis, &c. N. maculata, about 6 inches 
high, has white flowers with a violet-purple blotch at 
the tip of each corolla lobe ; and N. phacelioides has 
pale blue flowers with a white centre. 
NICOTIAN A affinis ( Sweet-Scented Tobacco). — A 
charming plant, 2 to 3 feet high, with bluntly ovate 
leaves, and large white long-tubed flowers. N. sylves- 
tris is another white-flowered Tobacco with much 
larger leaves. N. acutiflora and N. suaveolens also have 
white blossoms, while the Tobacco plant of commerce 
(N. Tabacvm ) has bell-shaped rosy flowers. These and 
several others with greenish or yellowdsh blossoms are 
usually treated as tender annuals, in the way described 
at p. 8. N. glauca, with yellow flowers is a large plant, 
10 to 20 feet high when fully developed. It should 
be protected under glass during the winter. N. 
tomentosa (or colossea ) is another large growing 
