R. D. Worthington

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7 collections found. 7 collections shown.

R. D. Worthington (7853)

Blechnaceae Woodwardia areolata (L.) Moore - United States of America

R. D. Worthington (4951)

Marsileaceae Marsilea vestita - United States of America

R. D. Worthington (3858)

Pteridaceae Bommeria hispida (Mett.) Underw. - United States of America

R. D. Worthington (9233)

Pteridaceae Cheilanthes lindheimeri Hook. - United States of America

R. D. Worthington (9475)

Pteridaceae Pellaea truncata L. N. Goodding - United States of America

R. D. Worthington (5189)

Pteridaceae Pellaea wrightiana Hook. - United States of America

R. D. Worthington (5437)

Selaginellaceae Selaginella wrightii Hieron. - United States of America