HYGROCYBE-ANDERSONII A NEW PSAMMOPHILUS HYGROCYBE FROM HORN-ISLAND, AMISSISSIPPI BARRIER-ISLAND

Hygrocybe andersonii, a new species always found in association with C eratiola ericoides on barrier islands and mainland sand dunes, is desc ribed. This Hygrocybe is distinguished from other Hygrocybes by its de nsely cespitose method of growth, its occurrence in sand in the vicini ty of Ceratiola ericoides, large bacilliform spores, and the presence of colorless, blue flourescing compounds on chromatograms prepared fro m pigment extracts. In addition, these chromatograms exhibit a complex of yellow to orange pigments of R(f) 0.14 to 0.25 that replace rhodoh ygrocybin as found in most other Hygrocybes.