IOWA ACADEMY OP SCIENCES. 241 
457. A. anethiodora (Nutt.) Britton. ( Lopinanthus ani- 
satus Benth.) Rare in woods along West Fork 
of Des Moines. 
Nepeta L. Catnip. 
458. N. cat aria L. Introduced from Europe into waste 
places. 
Physostegia Benth. 
459. P. virginiana (L.) Benth. Common along streams. 
Leonurus L. 
460. L. cardiaca L. Motherwort. Frequent as a weed 
in waste places; introduced from Europe. 
Stachys L. 
461. S. palustris L. Common in swamps and on low 
prairies. 
Monarda L. 
462. M. fist-ulosa L. Wild Bergamot. Very common; 
woods and dry prairies. 
Kcellia Moench. 
463. K. virginiana (L.) MacM. ( Pycnanthemum lanceola- 
tum Pursh.) Everywhere common; woods and 
low prairies. 
Lycopus L. 
464. L. virginicus L. Common in marshes. Aerial 
stolons from tips of fruiting branches observed 
in this species. 
465. L. americanus Muhl. (L. europcens var. sinuatus A. 
Gray.) Common in low ground. 
Mentha L. 
466. M. canadensis L. Wild Mint. Frequent in low 
ground. 
SOLANACEiE. 
Physalis L. Ground Cherry. 
467. P. lanceolata Michx. Common on prairies and in 
cultivated ground. 
468. P. virginiana Mill. Similar situations to the pre- 
ceding, and more common. 
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