108 MINNESOTA STUDIES IN PLANT SCIENCE 



Plate XIX 



Section Arabisa. I, capsule of 5". leucanthemifolia; 1, petals; 2, sqmls; 3, seed; 

 4, hair of same; drawn from specimen 1231b of the Biltmore Herbarium collection 

 (UMH). 



II. Capsule of 5. ferruginea; 5, petals; 6, sepals of same; drawn from Dr. 

 William Trelease's No. 4046, from Kodiak, Alaska (MBG 84045) ; 7, a stamen; 8, a 

 seed; from Baker's No. 4921, collected by J. D. Culbertson at Windham Bay, Alaska 

 (USNH 422334). 



III. Pistil of 5". bryophora; 9, filament; 10, petals; 11, sepals; drawn from 

 Bolander's No. 5043, California; IV, capsule; drawn from Lemmon's No. 97 (MBG 

 84200) ; 12, bulbils of Saxifraga foliolosa. 



Section Heterisia. V, a flower of S. Meretensiana; VI, advanced pistil; 13, a 

 sepal; drawn from Thomas Howell's No. 1428, California (UMH); 14, a filament; 

 IS, petals ; 16, a sepal ; 17, a cluster of bulbils ; 18, a pair of bulbils of 5". Mertensiana; 

 drawn from Elmer's No. 2645, from the Olympic Mountains, Washington (UMH) ; 

 VII, capsule of S. Mertensiana; 19, type of hairs in the section Heterisia, 



