102 MINNESOTA STUDIES IN PLANT SCIENCE 



Plate XVI 



I. Pistil of S. montanensis; II, dorsal view of a young carpel; 1, a petal; 2, 

 sepals ; 3, a filament ; 4, glands of hairs ; g, gland of carpels ; drawn from "E. C S.'s" 

 No. 155, from Electric Peak, Yellowstone National Park (USNH 488735); III, 

 dorsal ; IV, ventral views of a carpel ; 5, a petal ; 6, sepals ; 7, filaments ; 8, glands of 

 hairs ; g, gland of carpel ; I, a pistil ; drawn from another specimen of the same col- 

 lection, (E. C. S. No. 155) ; V, dorsal; VI, ventral views of mature follicles; 9, petals; 

 10, sepals; 11, a filament; 12, seeds; 13, glands of hairs; drawn from Rydberg and 

 Besse/s No. 4264, from Spanish Basin, Grallatin Coimty, Montana (USNH 360878). 



VII. Dorsal view of a mature follicle of a specimen referred to 5". integrifolia 

 by Professor Joseph Marsh; VIII, a young carpel; IX, a more advanced stage of 

 young carpel of same; 14, petals; 15, sepals; 16, glands of hairs; drawn from Marsh's 

 No. 85, University of Washington Herbarium; X, dorso-lateral view of an immature 

 follicle; XI, carpels at opening of flower; 17, petals; 18, sepals; 19, stamen; 20, 

 glands of hairs; drawn from a specimen from Whidby Island, Washington, referred 

 to 5^. integrifolia by N. L. Gardner, University of Washington Herbarium, 



