LADIES' TRESSES, G. odorata, are described by their 

 names. 



LITTLE LADIES' TRESSES, G. simplex, and SLENDER 

 LADIES' TRESSES, G. gracilis, are smaller and have 2-3 

 early fading root-leaves and later only bracts. 



CALYPSO, Calypso bulbosa. Root. A bulb. Stem. 

 Simple, 3'-6' high. Leaves. One, roundish with a 

 heart-shaped base. Flower. Solitary, terminal, showy, 

 variegated purple, pink and yellow. Perianth. Of 

 linear, erect or spreading sepals and petals, the lip sac- 

 shaped, drooping, with a patch of yellow wool. Column. 

 Petal-like above, with a lid-like anther above the 

 stigma. 



A fascinating little nymph who appears in early sum- 

 mer, in bogs, from Labrador to Vermont and west to 

 California and Arizona. At first sight it resembles a 

 small lady's-slipper. 



PLATE xv 



ARETHUSA, Arethusa bulbosa. Root. A bulb. Stem. 

 Simple, 5'-io' high, rather stout, set with bracts. 

 Leaves. Solitary, linear, appearing after the flower. 

 Flower. Solitary, terminal, large, showy, rose-purple. 

 Perianth. Of oval sepals and petals, erect or arched 

 over the column. The lip is notched, fringed, streaked, 

 and crested with yellow or white, hairy ridges. Column 

 (C). Petal-like, winged and curved above with the 

 anther (a) and stigma (s), which are borne on its lower 

 face. Ovary (0). 



This dainty orchid, surprised in its native bogs, in 

 May or June, reminds one of a startled fawn, by its 

 two erect, ear-like sepals. It ranges from Newfound- 

 land to South Carolina and west to Indiana; but ow- 

 ing to its inveterate enemy, the flower-picker, it has 

 become rather rare. 



HELLEBORINE, Epipactis viridiflora, is a stout herb, 

 i~2 high, with ovate, clasping leaves and a bracted 

 raceme of greenish-purple or yellow flowers. It has an 

 undulating lip and pointed sepals and petals. It blooms 

 near Toronto and in western New York in July and Au- 

 gust. 



