Abstract

Hot Springs National Park is located in central Arkansas in the eastern part of the Ouachita Mountains. Due to its mountainous character there is a wide range in the natural topography within the area of the park itself and in the surrounding region. One may find rocky bluffs or dry hillsides either open or shaded by a growth of pine, oak, and hickory. The soil is mostly acid, derived from the disintegration of shaley sandstone. There are also isolated outcrops of limestone especially toward the north. In the deeper valleys are accumulations of humus and richer soil, often damp and boggy from springs at the base of the rocky cliffs. Such a varied range of natural conditions would naturally support a wide variety of ferns. The following list represents the collection made by the writer in Hot Springs National Park and the immediate vicinity. POLYPODIUM POLYPODIOIDES (L.) HIitchc. Gray Polypody. Common on trees with rough porous bark and on moist mossy rocks, in moderate shade. ADIANTUM PEDATUM L. Maiden-hair Fern. Occasional at base of shady wooded slopes in rich, moist, well drained soil. Rocky bluffs near the Ouachita River and other smaller streams.

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