Fox: SPECIES OF CYPRIPEDIUM. 443 



surface is slightly indented and roughened with a distinct 

 marginal area. The capsule is brownish with prominent 

 edges aad is four or live cm. long. The ovules are elongated, 

 fusiform and have a very thin testa. 



Cypripedium hirsutum Mill, is found in bogs and woodlands 

 from Nova Scotia to British Columbia and on the south and 

 southwestern boundary has a range similar to that of C. i)arvi- 

 florum Salisb. 



The rhizomes of this species are collected for use in the man- 

 ufacture of Cypripedium extract. In the article cited it is char- 

 acterized as a "nerve stimulus. "^o^ 



Contact with the leaves of this species causes, in some per- 

 sons, an irritation quite similar to the effect produced by Rhus 

 toxicodendron, poison ivy, or Rhus veraix Linn. The excit- 

 ing property may be due to the peculiar hairs which this form 

 possesses or to the fungus which makes itself at home in the 

 cells of the hairs. i^° In either case the result is similar to the 

 effect caused by C. reginae Walt, when taken at certain stages 

 in its growth. 



C. hirsutum Mill, as a native of North America was intro- 

 duced into England in 1790 by Sir Joseph Banks.^i^ It is fre- 

 quently known as the "Large Yellow Lady's Slipper," "Whip- 

 poorwill Shoe," "Yellow Downy Lady's Slipper, "i*^ 



Herb: Sandberg, Red Wing; Sheldon Aitkin Co.; Sheldon, 

 Waseca Co. ; Sheldon, Crow Wing Co. ; Kassube, Hennepin Co. ; 

 Ballard, Scott Co.; Ballard, Prior Lake; Taylor, Janesville; 

 McElligott, McLeod Co. ; Aiton, Nicollet Co. ; Sandberg, Goodhue 

 Co.; Ballard, New Ulm; Sandberg, Hennepin Co.; Bamaley, Da- 

 kota Co. ; Sheldon, Lake McCasson. 



Cypripedium parviiloruin Salisb. 



Flower small, fragrant; labellum yellow, lateral petal, glossy 

 brown. 



C. calceolus Micnx. Fl. N. Am. 2:161. 1803. 

 C. parvijlomm Salisb. Trans. Lion. Soc. 1:77. t. 2. f. 2. 1791. 

 Mac. Cat. Can, PI. 2:20. 1888; Nuttall. Gen. N. Am. PI, 2:199. 1818; 

 Persoon, Synop. Plant. 2:525. 1807; Willden. Sp. PI. 4:143. 1805; Bot. 

 Gaz. 17. 1892; Bull. Me. Coll. Lab. 1893; Fcrnakl. Port. Cat. Me. PI. 

 64. 1892; Dame and Collins. Fl. M'dsex Co, Mass. 104. 1888; Torrey, 

 Fl. N. Y. 2:286. 1843; Gordimer, H. C. Fl. Renssa. Co. N. Y. 1894; 

 Geol, Surv. N, J. 2:236. 1889; Bull. U. S. Nat. Mas. Fl. Wash. 22:120. 



(100) Nieholson. lU. Diet. Gard. aad Eacycl. Hort. Gard. Kew. 1887, 



(110) MaoDougal, D. T. Minn. Bot. Stud. l:m. 1894. 



(111) Loudon's Hortus Britanicus 'i7:i. 1830. 



(112) Meehan, T. U. S. Fl. and Ferns. 2: «: 75. 1880. 



