226 PLANTS GROWING IN LIGHT SOIL. 
intimation one has of their whereabouts is to find himself cov- 
ered with their pods. Time must then be taken to pick them 
off, even though, as Thoreau says : “ You were running for your 
life.” .The family is also a numerous one, and it is almost im- 
possible not to come in contact with some of them when taking 
a stroll in the autumn. 
M. Canadénsts is the tallest and most showy of the genus ; of- 
ten reaching six feet high. It is not at all discriminating in its 
choice of a home, and can be found almost anywhere, from the 
heart of the woods to the middle of a bog. 
M. nudiflora-is a smaller and very common species of the 
open woods. Its purple flowers grow in a raceme on a usually 
leafless scape. 
Mf. grandiflora bears a long raceme of flowers with leaves 
divided into large leaflets crowded below it on the same stem. 
All of these plants are readily known by their purplish pa- 
pilionaceous corollas and three-foliolate leaves. The bloom is 
often quite pretty. 
WOOD-BETONY. LOUSEWORT. (Plate CXVIT.) 
Pedicularts Canadénsts. 
FAMILY COLOUR ODOUR RANGE TIME OF BLOOM 
Figuwort. Yellow, red, or purple. Scentless. General. May-July. 
Flowers: growing in a short, thick spike. Calyx: united and split down 
the front. Corolla: tubular ; two-lipped, the upper lip helmet-shaped, the 
lower one erect and three-lobed. Svamens: four enclosed in the upper lip. 
| Pistil: one. Seed pods: dagger-shaped. Leaves: those from the root deeply 
incised and cut ; those near the flower, smaller and less cut; hairy. Stem: 
erect ; hairy. 
The wood-betony is another of the flowers that interest us by 
their irregularity and vigour of expression. The upper lip raises 
itself in the most self-asserting manner until it takes the whim 
to arch over. Two short teeth then hang down and form a 
striking likeness to the head of a walrus. The under lip, 
which is shorter, completes the resemblance by drooping, 
Occasionally the whole flower is of a deep rich purple; but 
usually the parts are differently coloured, the upper lip being 

