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R H Petersen
R H Petersen is the author of "Ramaria, Subgenus Lentoramaria, with Emphasis on North American Taxa" and "A Monograph of Ramaria Subgenus Echinoramaria".
Books by R H Petersen
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Ramaria, Subgenus...
Petersen, R. H.
Hardback:
$30.00
A Monograph of Ra...
Petersen, R. H.
Hardback:
$48.00