106 MINNESOTA STUDIES IN PLANT SCIENCE 



PlATE XVIII 



Section Tricar pum. I, capsule of 5". texana; II, dorsal view of an immature 

 carpel of same; 1, sepals; 2, petals; 3, stamen and filaments; 4, seeds, hairs, and their 

 glands; drawn from Ernest J. Palmer's No. 1647, from Redingf's Mill, Newton 

 County, Missouri (MBG 760519) ; III, capsule; 6, sepals; 7, immature seed; 8, bracts 

 of inflorescence; 9, stigma enlarged; drawn from B. F. Bush's No. 5475, from Red- 

 ing's Mill, Missouri (MBG 84597) ; IV, ventral view of an immature carpel; 10, 

 sepal; 11, petals; 12, seed; drawn from J. Reverchon's No. 3729, from Terrell-Elmo, 

 Texas (MBG 84557) ; V and VI, ventral views of mature carpels; 13, sepals; drawn 

 from H. Ness' No. 1994, from Brazos County, Texas (MBG). 



