61G EXOGENOUS PLANTS. 



dum latifolium, (Ait.) Marsh Tea. Margins of tamerack swamps. Upper St. Croix. Pyrola rotundi- 

 folia, (L.) Pine woods. St. Croix. Pyrola elliptica, (Nutt.) July. Traverse des Sioux, on the St. 

 Peter's. Pyrola secunda, (L.) Pine woods. St. Croix. Chimophila umbellata, (Nutt.) Pipsissewa. 

 Pine woods. St. Croix. Hypopithys lanuginosa, (Nutt.) Woods. Lake Superior. Monotropa uui- 

 flora, (L.) Woods. Lake Superior. 



Aquifoliaceve. — Prinos verticillatus, (L.) St. Croix. The bark of this shrub is a common Indian 

 emetic. Nemopanthes Canadensis, (D. C.) Boggy woods. St. Croix. 



PLANTAGiNACEiE. — Plantago major, (L.) Common plantain. Plantago cordata, (Lam.) April. 

 Edges of brooks. Iowa. Plantago gnaphaloides, (Nutt.) Bare granitic knolls. Upper St. Peter's. 



PrimulacevE. — Dodecatheon Meadia, (L. ) Pride of the Prairie. Iowa. Trientalis Americana, 

 (Pursh.) Woods. Upper St. Croix. Androsace occidentals, (Pursh.) April. Banks of the Missis- 

 sippi, near Davenport, Iowa. Lysimachia stricta, (Ait.) June. Borders of St. Croix. Lysimachia 

 quadrifolia, (L.) Dry, sandy ridges. St. Croix. Lysimachia ciliata, (L.) Low grounds. St. Croix. 

 Lysimachia lanceolata, (Walt.) Moist river-banks. St. Croix. Naumburgia thyrsiflora, (Reichenb.) 

 Swamps. St. Peter's. 



Lentibuxace^e. — Utricularia vulgai'is, (L.) Ponds. Iowa. Utricularia intermedia, (Hayne.) 

 Traverse des Sioux. St. Peter's. 



Orobanchace^e. — Philipsea Ludoviciana, (Walp.) July. Traverse des Sioux. Found in a singular 

 isolated locality, rooting on an Indian grave. Anoplanthus fasciculatus, (Walp.) Dare granite rocks. 

 Upper St. Peter's. 



ScROPHULARiACEiE. — Verbascum Thapsus, (L.) Mullein. Roadsides. Iowa. Scrophularia nodosa, 

 (L.) June. Copses. Iowa and Minnesota. Chelone glabra, (L.) Swamps. Iowa and Minnesota. 

 Pentstemon pubescens, (Solandcr.) June. Banks of the Mississippi. Davenport, Iowa. Pentstemon 

 lajvigatum, (Pursh.) Roadsides. Iowa. Pentstemon grandiflorum, (Nutt.) Dry hills about Fort 

 Snelling. This large and handsome species, resembling in aspect the well-known Fox-glove, is equally 

 worthy a place in the flower-garden. Mimulus ringons, (L. ) Wet places. Common. Mimulus Jamesii, 

 (Torr. and Grr.) Cold springs at Fort Snelling and Stillwater. This peculiar northwestern species is 

 only found floating on the pure issue of the coldest springs, which it mats with its succulent foliage, 

 continuing to put forth its yellow blossoms through the entire flowering season. Syntbyris Houghtoniana, 

 (Benth.) Slay. Abundant on the high table-land overlooking the town of Stillwater, St. Croix. This 

 northwestern plant, so unique in its botanical features, is no less interesting in its association with 

 the name of the lamented Houghton. Veronica Virginica, (L.) Culver's root. A common and con- 

 spicuous plant on rich prairies throughout the Northwest. It still retains some reputation as a popular 

 medicinal agent. Veronica Americana, (Schwein.) Brooks. Iowa. Veronica scutellata, (L.) Bogs. 

 Upper Mississippi. Veronica peregrina, (L.) Waste places. Davenport. Gerardia purpurea, (L.) 

 August. Lake margins. St. Croix. Gerardia tenuifolia, (Vahl.) August. Falls of St. Croix. Gerardia 

 Pedicularia, (L.) September. Dry prairies. Iowa. Castilleja coccinea, (Spreng.) June. Painted 

 Cup. An abundant and showy prairie flower. Iowa. Castilleja sessiflora, (Pursh.) June. Drift 

 ridges. St. Peter's. Pedicularis Canadensis, (L.) Prairies. Iowa and Minnesota. Melampyrum 

 pratense, (L.) Pine Barrens. St. Croix. 



Verbenace/E. — Verbena hastata, (L.) Waste places. Davenport, Iowa. Verbena urticifolia, (L.) 

 Boadsides. Iowa. Verbena spuria, (L.) Dry fields. Iowa. Verbena angustifolia, (Michx.) June. 

 Dry fields. Iowa. Verbena stricta, (Vent.) River-banks and prairies of Iowa. Verbena bracteosa, 

 (Michx.) Roadsides. Iowa and Minnesota. Phryma leptostachya, (L.) Rich woods. Iowa and 

 Minnesota. Lippia nodiflora, (Michx.) River-banks, Mississippi and Des Moines. 



Labiatve. — Isanthus casruleus, (Michx.) August. Gravelly banks. Iowa. Mentha Canadensis, 

 (L. ) Wild mint. Borders of streams. Lycopus Virginicus, (L.) Bugle-weed. Lake margins. St. 

 Croix. Lycopus sinuatus, (Ell. ) Water horehound. Springy places. Iowa and Minnesota. Hedeo- 

 nia hirta, (Nutt. ) Dry, exposed places. Iowa and Minnesota. Monarda fistulosa, (L.) Wild bergamot. 

 Dry hills. St. Croix. A fragrant and handsome species. Nepeta Cataria, (L.) Catnip. Falls of St. 

 Croix. Lophanthus anisatus, (Benth.) Thickets. St. Peter's, Fort Snelling, Falls of St. Croix. This 

 characteristic northwestern species combines an agreeable anisate flavour, with a singular beauty of 

 flowers and foliage. In both respects it deserves a place in every garden. Its essential oil would make 

 a useful addition to our number of such articles, and it would be interesting to compare it with the 



