54 BOTANY OF L,A SALLE COUNTY. 



C. Carolitiiana. Flowers smaller and fewer; leaves 

 broader. 



Order 18. HYPEICACEAE St. JOHN'S WORTS 

 Herbs or shrubs with opposite, entire, dotted 

 leaves, no stipules, petals and sepals 4 or 5 and 

 stamens collected into 3 or more groups. 

 ASCYRUM. P. St. Peter's Wort. Sepals 4, two 

 outer broad and leaflike; petals 4, oblique. 



A. Crux Andreae. St. Andrew's Cross, much 

 branched, leaves narrow-oblong, narrowed to 

 base, thin; pale G. Not common. Rich lands. 

 HYPERICUM. P. St. John's wort. Herbs and 

 shrubs; sepals and petals each 5. stamens many 

 in 3 to 6 groups, flowers Y. 



H. adpres sum. Stem angular below 7 , 2 edged, 

 1 to 2 ft.; leafy at base; leaves narrow, sessile, 

 acutish, dotted; J. Aug. Wet places. 



H. ellipticum. Erect, 4 angled, 10 t> 20 in. leaves, 

 oblong narrow : ng toward base, thin; wetlands. 



H. perforatum. Branching, leaves narrow-oblong; 

 flowers numerous in a cyme, deep Y.; spreads 

 by runners. Ju. Sept. 



H. maculatum. Round; branches few; leaves ob- 

 long, some clasping; dotted with both clear and 

 black dots; flowers small, crowded, pale Y. 

 Damp places. 



H. mutilum. slender, branching; leaves narrow 

 obtuse; flowers deep Y. in naked cymes. 



H. medicaule. Stem and branches thread-like 

 stiff, erect 4 to 9 in; leaves scale like; flowers 

 small orange; Ju. Oct. Sandy wet lands. Red- 

 dick farm. 



ELODES. P. Marsh St. John's wort. Stamens 

 usually 9 in 3 sets. 



E. campanula ta. Erect, 1 to 2 ft., leaves oblong, 



