Appendix 243 



Glandular pubescent plants. Anthers, 2. Labellum shoe- 

 shaped, or conical. Sepals and petals similar in texture ; 

 lower sepals wholly or imperfectly united in all species save 

 C. arietinutn R. Brown. Stem, 6 inches to 3 feet high. 

 Flowers, 1-4 in the Atlantic region and 1-12 in the Pacific re- 

 gion ; pendulous, alternating in a bracted raceme. Pollen 

 granulose, without caudicle or glands. Fragrance heavy, aro- 

 matic, or oily save in two exquisitely sweet species, C. par- 

 viflorum Salisbury, of the Atlantic region, and C. Montamirn 

 Douglas, of the Pacific slope. Leaves, 2-several, plicate, light 

 green, somewhat resembling Hellebore foliage, with which 

 plants the Cypripediums were early confused by the ancient 

 herbalists. Roots fleshy, fibrous, with spicy, oily, or musk- 

 like odor, used as a nervine. Seed-capsule long, three-angled ; 

 ovules numerous, minute, resembling saw-dust. Seedlings 

 frequent in many stations. About 50 species for the world. 



Continental Range — Throughout the conifer wooded and 

 bogland regions from Alaska southward to Mexico. May-July. 



North American species 13 



New England species. . . 6 



Hoosac Valley species 5 



New England species : 



1. C. arietinum R. Brown, 1813. 



2. C. regincB Walter, 1788. 



(C spectabile Salisbury, 1791.) 



3. C, candidum Willdenow, 1805. 



4. C. hirsutum Miller, 1768. 



{C. pubescensW\\\di&novf, 1805.) 



5. C.parvijlorum SaWshnvy, 1791. 



6. C. acaule Aiton, 1789. 



I.— CYPRIPEDIUM ARIETINUM R. Brown, 1813 



Ram's-Head Lady's Slipper— Ram 's-Head Moccasin- 

 Flower 



The specific name, arietinum^ refers to the conical labellum 

 resembling a ram's head. 



Small conifer bogland or damp woodland orchid, with fibrous 

 roots. Rare. May 9th- August ist. 



Flowers, one, terminal, mottled dull purple and white. 

 Labellum conical, Yz-Y^ inch, prolonged at the apex into a re- 

 flexed spur. Sepals all free. Petals narrow, similar in color, 

 and assuming the place of horns to the ram's-head-shaped 

 flower. Stem leafy, 6-12 inches high. Leaves, 3-4, dark 

 apple-green ; 2-4 inches wide, smooth, without hairs. Seed- 

 capsule prominently ridged. 



Continental Range — From Quebec, Ontario southward to 



