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Bovista aestivalis
''Bovista aestivalis'' is a small puffball generally found in the coastal regions of California. This fungus is often confused with ''Bovista dermoxantha'', because of its similar peridium, and ''Bovista plumbea''. The surest way to tell the species apart is to examine the spores and exoperidium, respectively, with a microscope.
==Description==
The fruit body is 1.5–3.0 cm broad and varies in shape from spherical to pulvinate (cushion-shaped). In addition, it is attached to the substrate by dense masses of hyphae. At first, the exoperidium is white; originally covered in dense filaments, it breaks up into buff, fine warts. With age, a brown, thin endoperidium becomes exposed underneath.〔 The spores are released via a ragged apical pore. The gleba is soft, changing from white, to olive and eventually medium-brown.
The spherical| spores are 3.5–4.5 µm in diameter and moderately thick-walled with smooth warts. In the center lies an oil droplet and a stub-like pedicel. In addition, there is a capillitium from the central part of the gleba with numerous minute pits.〔Pegler, D.N., Læssøe, T. & Spooner, B.M. (1995). British Puffballs, Earthstars, and Stinkhorns. Royal Botanic Gardens: Kew, England. 255 p.〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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