John Rusk:
H20140331-1260—Dryopteris sublacera—UCBG
John Rusk:
H20120603-5082--Dryopteris arguta--RPBG
John Rusk:
G20081230-3032--Dryopteris expansa --RPBG
John Rusk:
J20151112-0068—Dryopteris arguta—RPBG
John Rusk:
E20161208-0001—Dryopteris arguta (Reverse)—RPBG
John Rusk:
E20161208-0002—Dryopteris arguta (Obverse)—RPBG