PLANTS GROWING IN MOIST SOIL. IO 
them are extremely poisonous, This is true of the water-hem- 
lock illustrated in Plate VI. Again, we cannot avoid all of them 
on this account, as among them they number the vegetables, 
celery, carrots, parsnips and parsley, They are readily recog- 
nised as a genus by their umbels and umbellets of minute 
‘flowers, compound leaves, and generally hollow stems. In size 
and colour they are very variable. 
A powerful microscope and a lifetime of patience 1s necessary 
to study them in the detail of their individual parts, and many 
of the species can only then be recognised by the difference in 
their fruit ; but they can be broadly known according to locality. 
Insects are necessary to them, as self-fertilization is prevented 
by the stigma developing some time before the stamens. 
MOCK BISHOP-WEED. 
Ptilimnium capillaceum. 
FAMILY COLOUR ODOUR RANGE TIME OF BLOOM 
Parsley. White. Scentless. Middle states. June-October. 
Flowers: very small; clustered in compound umbels with finely divided 
bracts underneath. Leaves: compound; the divisions fine and threadlike. 
Stem : varying greatly in height; branching ; smooth. 
To thrive well this plant is one that requires the constant 
washing of its roots with water. We find it by running streams, 
in wet meadows, and sometimes in brackish marshes. The 
flowers are fluffy and pretty ; but that the bishops would ever 
agree to the supposed likeness between the bracts and their 
caps is greatly to be doubted. 
SWEET WHITE VIOLET. (Plate CXXXV.) 
Viola blainda. 
FAMILY COLOUR ODOUR RANGE TIME OF BLOOM 
Violet, White; the lower petals Delicately Northward from May. 
veined with purple. Sragrant. the Alleghantes. 
Flowers : small; terminal; solitary ; growing on a scape. Calyx; five-eared 
at the base. Corolla: of five unequal beardless petals, one being spurred at 
the base. Stamens: five; short; united about the pistil. s¢z77: one; short. 
Leaves : from the root on petioles; reniform. Stem ; erect ; not leafy. 
