Rhodocollybia laulaha is one of the more conspicuous and commonly encountered agarics of Montane Native Forests on all of the major Hawaiian Islands. It grows in leafy debris and on rotten logs of o`hia and hapu`u, and at first glance looks a little like Rhodocollybia butyracea (Bull.: Fr.) Lennox. Notice, however, the extremely crowded and narrow (-1.5 mm) lamellae that are labyrinthine near the stipe and show a constriction a short distance from the stipe with an elevated region internal to the constriction. These anomalies are present in nearly every basidiome encountered, and accordingly are diagnostic for the species.
Comprehensive Description
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