. Contributions from the Botanical Laboratory, vol. 11. Botany; Botany. Heprinted from Thk American Orchid Soctety , .Timo, 1034 Native Orchids Our Eastern Orchids and Their Cultivation^ 6. The Crested Orchids Edgar T. Wherry Sweet Crest-Orchid, P og onia ophioglossoides (L.) Ker. The majority of the crested Or- chids occupy the most intensely acid soils normally occurring in nature. This one, which is sometimes termed Rose Pogonia or "Snake-mouth," —'an unlovely name for a lovely flower—occurs in practically every extensive sphagnum bog and acid meadow in the eastern Unite
. Contributions from the Botanical Laboratory, vol. 11. Botany; Botany. Heprinted from Thk American Orchid Soctety , .Timo, 1034 Native Orchids Our Eastern Orchids and Their Cultivation^ 6. The Crested Orchids Edgar T. Wherry Sweet Crest-Orchid, P og onia ophioglossoides (L.) Ker. The majority of the crested Or- chids occupy the most intensely acid soils normally occurring in nature. This one, which is sometimes termed Rose Pogonia or "Snake-mouth," —'an unlovely name for a lovely flower—occurs in practically every extensive sphagnum bog and acid meadow in the eastern United States and Canada. Its rootstocks creep through the moist peat and form extensive colonies, and when it is in full bloom in June its delicate perfume fills the air. A recent book on wild flower cultivation includes it among species which are said to "move easily and safely to any good moist garden spot," but this is quite misleading. A good garden spot is rich in plant foods and neutral in reaction, and the plant will succumb there within a year or two. There is no use trying to grow it at all except in an extensive bed of strongly acid humus, with a con- stant supply of water free from lime. Rosebud Orchid, Pogonia (Cleisfcs) divaricata (L.) R. Br. Though like the preceding species this Orchid requires acid soil, it prefers less water and more air at its roots, occurring in meadows which are at most temporarily inundated, on hummocks around bog margins, and even on dry mountain sides. Its ancestral home was apparently in the Allegheny mountain region, and it is still to be found there, as far. ?Contribution from the Botanical Laboratory and Morris Arboretum of the University of Pennsylvania. Edgar T. Wherry Pogonia (Cleistes) divaricata Delaware, early July, 1926 north as west-central Virginia. When the ocean withdrew during the Tertiary geological period, leav- ing a vast expense of sediments avail- able for occupancy by land plants, it soon invaded this Coast
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