438 MINNESOTA BOTANICAL STUDIES. 



An unusual form of Cypripedium arietinumR. Br. was found 

 near Mt. Pleasant, Mich. "The flower ^i was not fully ex- 

 panded when found, but the parts were fully grown and soon 

 unfolded. It was remarkable in having the side petals, which 

 are linear and of a brownish color in the normal flower, trans- 

 formed into saclike inflated bodies, closely resembling the lip, 

 but differing from it in being smaller, with wider and rounder 

 openings, and in not having the edges rolled in. The coloring 

 of these side petals was like that of the lip, pinkish with lines 

 of deep red. The tip of the lip was pushed in upon itself, un- 

 til it was half inverted, partly filling the cavity of the lip. The 

 lip was also flattened and broadened more than usual. The 

 other floral organs were normal." 



Herb: Taylor 1122, Glenwood, Minn. 



Cypripedium reginae Walt. 

 Floioer large, showy, pink. Sepals ovate. Leaves large, croioded. 



C. calceolus var. g. Linn. Sp. PI. 1346. 1762. 



C. album Ait. Hort. Kew. 3:303. 1789. 



C. spectabile Sw. Act. Holm. 250. 1800. 

 Mac. Cat. Can. PI. 2:20. 1888; Fl. Mt. Desert Is. Me. 153. 1894; Fero- 

 ald. Portl. Cat. Me. PI. 64. 1892; Torrey, J. Fl. N. Y. 2:286. 1843; 

 Gordimer and House, Fl. Reoss Co. N. Y. 1894; Geol. Surv. N. J. 

 2:236. 1889: Bull. U. S. Nat. Mus. Fl. Wash. 22:1.3. 1881; Chapman, 

 Fl. S. U. S. 464. 1887; Wood. Bot, and Flor. 326. 1874; Tracy. Fl. Miss. 

 1885; Gattinger. Tenn Fl. 84. 1887; Jones H. L. Phan. and Ferns, 

 Licking Co. O. 82. 1892; Beal and Wheeler, Mich. Fl. 138. 1892; Bull. 

 Chic. Acad. Sci. 2:113; Trans. Wis. Acad. Sci. 9:648. 1893: Arthur Fl. 

 la. 31. 1876; Brendel. Fl. Peoriaoa 60. 1887; Gray, Man. Bot. 511. 1890; 

 Gray, A. How PI. Behave, 31. 1872; Baldwin H. Orchids of N. E. Fig. 

 1. 1884; Loudon Hort. Brit. 373, Fig. 597. 1830; Hitchcock, A. S. Cat. 

 Anthoph. and Pterid. la. St. Louis Acad. Sci. 5:518. 1891; Trans. Minn. 

 State Hort. Soc. 112. 1875; Upham, W. Minn. Phan. 142. 1884; Mac 

 Miilan, C. Metasp. Minn. Val. 162. 1892; Gray, A, Man. Bot. 511. 1890. 



C. canadense MiCHX. Fl. N. Am. 2:161. 1803. 



C. reginae Walt. Fl. Car. 222. 1788. 



A perennial, which is strongly pubescent throughout, gen- 

 erally very stout and robust and is from three to seven dm. 

 high. The rhizomes are very large, cylindrical and when of 

 some age, show hollow cicatrices and bear fibrous roots. The 

 stem is from two to six dm. high, erect and somewhat setulose. 

 The crowded leaves vary in number from five to seven and are 

 one and one-half to two and one-half dm. long and broadly 

 ovate lanceolate. The ten to thirteen prominent nerves of the 



(91) Davis, C. A. Bull. Torr. Bot. Club. 8:339. 1893. 



