Stems 6 to 12 inches high, with three or four elliptic or lanceolate leaves 2 to 4 inches long, one-third to 3 inches wide, one-flowered; sepals separate, lanceolate, one-half to seven-eighths of an inch long, longer than the lip; petals linear, greenish brown, about as long as the sepals; lip one-half to three-fourths of an inch long, red and white, veiny, prolonged at the apex into a long blunt spur, somewhat distorted at the upper end, which gives the plant its common name of Ram's-head Lady's-slipper.

Memoir 15 N. Y. State Museum

Plate 32

(Photograph and Autochromc by Edward A. Eames)

B. Ram S-Head Lady S-Slipper - Criosanthes arietina

A very rare species of cold and damp woods from Quebec to Manitoba, Massachusetts, New York and Minnesota. It has been collected but a few times in the northern counties of this State. The colored illustration is made from a photograph taken in southern Herkimer county by Mr Edward H. Eames of Buffalo and the accompanying halftone from a photograph by Mr G. A. Bailey of Geneseo.

(Photograph by G. A. Bailey)

Figure V Ram's-head Lady's-slipper (Criosanthes arietina (R. Brown) House)