The Pink Moccasin-Flower—the Stemless Lady’s Slipper (_Cypripedium acaule_)* 246 Showing the structure of the pendulous and bi-lobed labellum, and the processes of the sepals and petals. _Colored_ The Showy Orchis (_Orchis spectabilis_)* 248 The first orchid of the season, showing the hooded fold above the orifice of the spur, and the processes of the flowers on the bracted scape. _Colored_ A Group of Three Species of Genus Habenaria: 1. The Tall Northern Green Orchis (_Habenaria hyperborea_); 2. The Tall Northern White Orchis (_Habenaria dilatata_); 3. The Large Round-Leaved Orchis (_Habenaria orbiculata_)* 250 _Colored_ The Spikes of Habenaria (_Habenaria Andrewseii_ and _Habenaria psycodes_) 252 The Small Bog Orchis (_Habenaria clavellata_) 254 Andrews’ Rose-Purple Orchis (_Habenaria Andrewseii_) 258 The Beautiful Arethusa (_Arethusa bulbosa_) 262 Showing the structural parts of the flower, the single leaf, and bulbous root. _Colored_ The Hooded Ladies’ Tresses (_Gyrostachys Romanzoffiana_) 264 The Nodding Ladies’ Tresses (_Gyrostachys cernua_) 266 The Slender Ladies’ Tresses (_Gyrostachys gracilis_) 268 The Haunts of the Rattlesnake Plantain (_Peramium_) amid the Pines and Spruces of the Domelet, Pownal, Vermont 270 The Green Adder’s-Mouth (_Achroanthes unifolia_) 272 The Large Twayblade (_Leptorchis liliifolia_) 274 Northern Calypso (_Calypso bulbosa_) 276 From lithograph in Meehan’s _Native Flowers and Ferns of the United States_, 1: 1878. By permission. _Colored_ The Coral-Root (_Corallorhiza_) 280 The Grass Pink (_Limodorum tuberosum_) 282 A beautiful grassy-leaved orchid found in company with the dainty Rose Pogonia, and frequently with the rarer Arethusa in wild cranberry marshes. _Colored_ Epiphytes, or Air Plants. A Corner in the Orchid House of the Botanical Gardens of New York City* 284 FIRST SEASON I Off to the Hills of Berkshire and Bennington It is not the walking merely, it is keeping yourself in tune for a walk, in the spiritual and bodily condition in which you can find entertainment and exhilaration in so simple and natural a pastime.—BURROUGHS, _Pepacton_.