50 BOTANY OF LA SALLE COUN^f. 



D. Canadensis. Flowers smaller, spurs rounded, 

 sweet scented, blooms later and is sometimes Pi. 

 Root made up of a collection of small round Pi. 

 tubers. 



CORYDALIS. A low, decumbent plant \vith com- 

 pound whitish green leaves, translucent watery 

 stems and golden yellow, flowers in short 

 racemes. 



C. aurea. Y. Apr. A very pretty plant. 

 Order 10. CRUCIFERAEA. 'Mustards. 



A large family of plants having 4 parted flowers. 

 6 stamens, in a few cases 4 or 2, 2 of them 

 shorter than the other 4, fruit a pod longer than 

 wide as in mustard radish, and called a siMque, 

 or wider than long and called a silicle, as in 

 Shepherd's Purse, leaves, flowers and fruit 

 often having strong peppery taste and smell. 

 DENTARIA. P. Pepper Root. 



D. diph}*lla. Leaves two about X length of stem 

 from ground, large, compound, cut into long, 

 narrow segments. Flowers in a spreading 

 cluster, W. to P., M. Woods. 



CARDAM1NE. Bitter Cress. 

 C. rhomboidea. Leaves rhomboid, stem upright, 



6 to 8 in. W., Ap. M. 



C. rotundafolia. Sends out long runners from 

 stems; leaves rounded; flowers W., smaller than 

 the preceding. 



C. hirsuta. Usually somewhat hairy. 

 ARABIS. Sicklepod. 



A. Ludoviciana. Leaves pinnately parted, flowers 



small W. 

 Jh. A. lyrata. Root leaves much divided, stem leaves 



scattered, narrow. 

 A. perfoliata. Smooth, tall, 2 to 4 ft. stem leaves 



