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CHICKERING ON PLANTS OF DAKOTA AND MONTANA. 
#399. Pentstemon procerus, Doug. 
*400. Pentstemon pubescens, Soland. 
401. Mimulus luteus, L. 
1874. August. Milk River. 
*402. Mimulus Lewisii, Pursh. 
*403. Mimulus ringens, UL. 
*404. Gratiola Virginiana, L. 
*405. Veronica Americana, Schwein. 
1874. August. Milk River. 
*406. Veronica alpina, L. 
*407. Veronica peregrina, L. 
*408. Gerardia purpurea, L. 
*409. Castilleia coccinea, Spring. 
410. Castilleia pallida, Kunth. 
1874. August. Base of Rocky Mountains. 
410, Castilleia pallida, Kunth., var. miniata. 
1874. August. Milk River. 
*411. Castilleia sessiliflora, Ph. 
*412. Rhinanthus Crista-Galli, L. 
*413. Pedicularis Canadensis, L. 
*414, Pedicularis bracteosa, Benth. 
*415. Melampyrum Americanum, Mx. 
416. Orthocarpus luteus, Nutt. 
1874. July. Near Three Buttes. 
VERBENACEA. 
417. Verbena bracteosa, Mx. 
1874. July. Frenchman’s Creek. 
*418. Verbena hastata, L, 
LABIATA. 
419. Mentha Canadensis, L. 
1873. August. Along Mouse River. 
1874. August. Frenchman’s Creek. 
*420. Lycopus sinuatus, Gray. 
*421. Lycopus Virginicus, L. 
422. Monarda fistulosa, L. 
1873. August. Turtle Mountain. 
4224, Monarda fistulosa, var. mollis. 
1874. August. Frenchman’s Creek. 
423. Lophanthus anisatus, Benth. 
1873. August. Near Turtle Mountain. 
424, Dracocephalum parviflorum, Nutt. 
1873. August. Turtle Mountain. 
*425,. Physostegia Virgiana, Benth. 
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