pubescent and more of less glandular, leafy throughout; 

 leaves mostly slightly sheathing, broadly elliptic to 

 elliptic-lanceolate, 6-17 cm long, up to 7 cm. broad, 

 lightly pubescent and usually glandular; flowers 1 (very 

 occasionally 2) , subtended and usually exceeded by an erect, 

 leaflike bract; sepals and petals greenish-yellow to 

 somewhat purplish brown or purplish-mottled, usally wavy- 

 margined and slightly twisted, the upper sepal broadest, 

 2.5-4 cm. long, the lower pair completely fused or with only 

 a notch at their tip; petals somewhat narrower and longer 

 than the sepals, up to 4.5 cm long, lip 2-3 cm long, 

 strongly pouched, yellow, often purplish dotted around the 

 orifice; staminoidium triangular, usually lobed or 

 auriculate at the base, up to 10 mm long, yellow with purple 

 dots (taken from Hitchcock and Cronquist 1984) . 



3. LOCAL FIELD CHARACTERS: Of the four species of Cypripedium 

 reported for Montana, only C. calceolus has a yellow lip 

 petal. The range of C. montanum overlaps with C. calceolus 

 in Granite County, though the former was not found on 

 Anderson Hill. The C. montanum has a white lip petal and 

 lacks the mottling on the lip aften found in C. calceolus. 

 It also occupies drier upland habitats. Vegetatively, the 

 broadly elliptic C. calceolus leaves resemble leaves of 

 Veratrum viride except that the leaves are flat rather than 

 pleated. 



D. GEOGRAPHICAL DISTRIBUTION 



1. RANGE: Cypripedium calceolus is a circumboreal species, 

 distributed across Europe and northeastern North America, 

 extending westward as far as British Columbia, Washington 

 and Oregon east of the Cascades, east to Montana, Idaho, 

 Wyoming and Colorado. Hitchcock (1978) treats all the 

 material of the Pacific Northwest as Cypripedium calceolus 

 var. parviflorum . However, Macgrath (1973) treats British 

 Columbia and Colorado material as C. c. pubescens . 



It occurs in northwest counties of Montana, with the 

 nearest record being from Missoula County. Only three 

 collection records are further south, and all are 

 historic. They are from Gallatin and Stillwater 

 counties. 



2. CURRENT SITES: Thirty recent records are in the Montana 

 Natural Heritage Program database, documented from seven 

 counties. 



3. HISTORICAL SITES: The Garnet collection represents the 

 third collection of Cypripedium calceolus in the state. In 

 addition, there are four other records among the thirty four 

 records which pre-date the 1950 's. They have vague 



