Intra-genus variation may be demonstrated by differences in colour and ornamentation of the cap cuticle, flesh, pores and stipe, the presence of a partial veil in immature forms and S . sibiricus " is restricted to a few species of 5-needled pine ( " Pinus " ).
32.
These adaptations include : a cap that does not expand ( thus conserving moisture ); dark-colored gills that do not forcibly eject spores ( a mechanism known to depend on turgor pressure achievable only in sufficiently hydrated environments ); and a partial veil that remains on the fruit body long after it has matured.
33.
Victor Fayod designated " Pholiotina blattaria " as the type species of " Pholiotina ", but this name was used for many different species of " Pholiotina " with partial veils and it is unclear which species is really " P . blattaria ", which makes it a nomen dubium.
34.
The adnate, sometimes with a decurrent line, close, whitish, becoming grayish-cream on drying, with white, floccose remnants of partial veil on edges, narrow, 4.5-11 mm ( 0.45-1.1 cm ) broad, sometimes anastomosing; the short gills are truncate to rounded truncate to attenuate to attenuate in steps, plentiful, of diverse lengths, unevenly distributed.
35.
Mycologists Tsuguo Hongo and Rokuya Imazeki suggested in the 1980s that the Japanese mushroom " cuticle gelatinizes; the partial veil is more persistent; the spores are smaller and roughly spherical; on the underside of the partial veil, the stem has surface fibrils that are drawn upward so as to somewhat resemble a cortina ( a cobweb-like protective covering over the immature spore bearing surfaces ); " A . magniverrucata " has a known distribution limited to the south western coast of North America.
36.
Mycologists Tsuguo Hongo and Rokuya Imazeki suggested in the 1980s that the Japanese mushroom " cuticle gelatinizes; the partial veil is more persistent; the spores are smaller and roughly spherical; on the underside of the partial veil, the stem has surface fibrils that are drawn upward so as to somewhat resemble a cortina ( a cobweb-like protective covering over the immature spore bearing surfaces ); " A . magniverrucata " has a known distribution limited to the south western coast of North America.
