ORCHID FAMILY. 457 
Leaf 1, basal, unfolding after the flowering time. 
Flowers long-spurred; lip 3-lobed. 14. Tipularia. 
Flowers not spurred; lip 3-ridged. 17. Aplectrum. 
Plants with coralloid roots, bulbless, the leaves reduced to scales. 
Pollinia 4, in 2 pairs; flowers gibbous or spurred. 
Pollinia 8, united; flowers not gibbous nor spurred. 
1. CYPRIPEDIUM L. Sp. Pl. 951. 1753. 
Glandular-pubescent herbs, with leafy stems or scapes and tufted roots of thick fibres. 
Leaves large, broad, many-nerved. Flowers solitary or several, drooping, large, showy. 
Sepals spreading, separate, or 2 of them united under the lip. Lip a large inflated sac. 
Column declined, bearing a sessile or stalked anther on each side and a dilated petaloid 
sterile stamen above, which covers the summit of the style. Pollinia granular, without a 
caudicle or glands. Stigma terminal, broad, obscurely 3-lobed. [Name Greek, Venus’ sock 
or buskin. ] 
About 4o species, natives of temperate and tropical regions. Besides the following, some 4 
others occur in western North America. 
. Corallorhiza. 
. Hexalectris. 
mH 
ow 
Sepals separate; stem leafy, 1-flowered. 1. C. arietinum, 
Lateral sepals more or less united. 
Plant 2-leaved; scape 1-flowered. 2. C. acaule. 
Stem leafy to the top, 1-several-flowered. j 
Sepals and petals not longer than the lip. 3. C. reginae. 
Sepals and petals longer than the lip. 
Sterile stamen lanceolate; lip white. 4. C. candidum., 
Sterile stamen triangular; lip yellow. 
Lip 1%'-2' long, pale yellow. 5. C. hirsutum. 
Lip 7’'-15'' long, bright yellow. 6. C. parviflorum. 
1. Cypripedium arietinum R. Br. 
Ram’s-head Ladies’ Slipper. 
(Fig. 1088.) 
Cypripedium arietinum R. Br. in Ait. Hort. Kew. Ed. 
2p 422. 18r3. 
Stem 8/-12’ high, 1-flowered. Leaves 3 or 4, el- 
liptic or lanceolate, 2’—-4’ long, 14’—3’ wide; sepals 
separate, lanceolate, 8’’/-10’’ long, longer than the 
lip; petals linear, greenish brown, about as long as 
the sepals; lip 7’’-8’’ long, red and white, veiny, 
prolonged at the apex into a long blunt spur, some- 
what distorted at the upper end which resembles a 
ram’s head, whence the specific name. 
In cold and damp woods, Quebec to Ontario, New 
York and Minnesota. May-Aug. 
2. Cypripedium acatle Ait. Moccasin 
Flower. Noah’s Ark. Stemless 
Ladies’ Slipper. (Fig. 1089.) 
Cypripedium acaule Ait. Hort. Kew. 3: 303. 1789. 
Scape 6/-12’ high, 1-flowered. Leaves 2, 
basal, elliptic, 6-8’ long, 2’—3’ wide, thick; oc- 
casionally a smaller leaf is borne on the scape; 
sepals greenish purple, spreading, 114’-2/ long, 
lanceolate, the 2 lateral ones united; petals nar- 
rower and somewhat longer than the sepals; 
lip often over 2’ long, somewhat obovoid, folded 
inwardly above, pink with darker veins or 
sometimes white, the upper part of its interior 
surface crested with long white hairs; sterile 
stamen triangular, acuminate, keeled inside. 
In sandy or rocky woods, Newfoundland to On- 
tario, south to North Carolina, Kentucky and Min- 
nesota. Ascends to 4500 ft. in Virginia. The hairs 
on the lower part of the bract and on the base of the 
ovary are often tipped with scarlet glands. Flower 
fragrant. May-June. 
