

- Distribution. 
NATURAL ORDERS 127 
This Order is chiefly tropical, and American 
rather than European. Valuable medicines are 
obtained from many of the plants in this Order. 
SCROPHULARIACE. 
This Order is Closely allied to the preceding one; the 
regular corolla and the oblique ovary of Solanacex are 
characters which distinguish it from the Scrophulariacee. On 
the whole, too, 5 stamens 
_are rare in the Scrophu- 
lariacee, although they do 2 fy . 
occur in Mullein; in So- nwt 
lanaceze 5 stamens are con- 
stant. The inflorescence 
differs in the two Orders 
(see p. 130). 
The Scrophulariaceez 
may be subdivided into 
two groups : 
(a) The Snapdragon 
group, including Mullein, — 
Figwort, Foxglove, Linaria, 
and Veronica. This group 
has been sufficiently de- 
scribed in ‘ Hlementary 
Botany,” pp. 95-97, the 
variety in the corolla and 
the suppression of the | 
stamens being the two important characteristics to note. 
(6) The Yellow Rattle group. These are semi-parasitic 
plants ; they draw their nourishment partly from the plants’ 
on which they feed, chiefly grasses, and at the same time they 
have green leaves. The plants belonging to this are all herbs, 
and include Eyebright, Cow-wheat, Yellow Rattle, Bartsia, 
Lousewort, Red Rattle. 
The roots of these plants attach themselves by suckers to 
the roots of the plants on which they feed (Fig. 116). They 

Vie, 114.—RED RATTLE. 
