IOWA ACADEMY OF SCIENCES. 17o 



diverging; floral leaves similar; calyx deeply cleft; corolla 

 long. 



This species grows in dry soil on prairies from Mani- 

 toba, Wisconsin, and Minnesota to the northwest territory, 

 south to Illinois, Iowa, Nebraska, Wyoming, and Texas, 

 blooming daring the months of May, June, and July. In 

 Iowa the species is frequent in the western portion but 

 infrequent in the eastern portion. Type locality: "In 

 upper Louisiana." 



Specimens in our herbarium are from Shelby and 

 Emmet counties. The State University herbarium has 

 specimens from Delaware, Story, Hardin, Hamilton, and 

 Lyon counties. Professor Pammel has reported the species 

 from Woodbury county. 



Arthur, Contr. Fl. la., p. 23; Bull. Iowa Agr. Col., Nov., 1884, p. 16.=;; 

 History of Flo3'd County, p. 308; Hitchcock, Trans St. Louis Acad. Sci- 

 ence, Vol. 5, p. 511; Pammel, Proc. Iowa Acad. Sc'ence?, Vol. 3, p. 128; 

 Fink, Proc. Iowa Acad. Sciences, Vol. 4, p. 97; Bessey, Fourth Bien. 

 Rep. Agr. Col., p. 112; Shimek, Bull. Lab. Nat. Hist., S. U. I., Vol. 

 3, p. 208; Iowa Geol. Sur., Vol. 10, p. 173; Fitzpatrick Proc. Iowa Acad. 

 Sciences, Vol. ^, p. 157; Manual Fl. Plants of Iowa, p. 126. 



PEDICULAPtIS L. Sp. PI. 603. 1753. 



Perennials; leaves pinnatifid. the floral bract-like. 

 Flowers yellow, spicate. Calyx inflated, 2— 5-cleft. 

 Corolla 2-lipped; the upper lip vaulted, covering the 4 

 didynamous stamens; the lower lip spreading, 3-lobed. 

 Anther-cells equal. 



Pedicularis CANADENSIS L. Maut. 86. 1767. Lousewort. 

 Wood Betony. 



Pedicularis g/adiata M\chx. Fl. Bor. Am. 2:18. 1S03. 

 Pedicularis crquinoctia'is ¥i.BK. N. Gen. et Sp. 2:332. 1817. 



Hairy; stems usually tufted, 6 — 12 inches high; leaves 

 alternate, petioled, pinnatifid, segments toothed; flowers 

 in a dense spike; calyx incised in front, oblique; upper lip 

 of the corolla hooded, incurved, with two teeth; capsule 

 flattish, sword-beaked. 



