R. D. Thomas

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25 collections found. 25 collections shown.

R. D. Thomas (27499)

Ophioglossaceae Ophioglossum crotalophoroides Walt. - United States of America

R. D. Thomas (27256)

Ophioglossaceae Ophioglossum crotalophoroides Walt. - United States of America

R. D. Thomas (27489)

Ophioglossaceae Ophioglossum crotalophoroides Walt. - United States of America

R. D. Thomas (27492)

Ophioglossaceae Ophioglossum crotalophoroides Walt. - United States of America

R. D. Thomas (27500)

Ophioglossaceae Ophioglossum crotalophoroides Walt. - United States of America

R. D. Thomas (27501)

Ophioglossaceae Ophioglossum crotalophoroides Walt. - United States of America

R. D. Thomas (27503)

Ophioglossaceae Ophioglossum crotalophoroides Walt. - United States of America

R. D. Thomas (27505)

Ophioglossaceae Ophioglossum crotalophoroides Walt. - United States of America

R. D. Thomas (27506)

Ophioglossaceae Ophioglossum crotalophoroides Walt. - United States of America

R. D. Thomas (27508)

Ophioglossaceae Ophioglossum crotalophoroides Walt. - United States of America

R. D. Thomas (27509)

Ophioglossaceae Ophioglossum crotalophoroides Walt. - United States of America

R. D. Thomas (27511)

Ophioglossaceae Ophioglossum crotalophoroides Walt. - United States of America

R. D. Thomas (27514)

Ophioglossaceae Ophioglossum crotalophoroides Walt. - United States of America

R. D. Thomas (27515)

Ophioglossaceae Ophioglossum crotalophoroides Walt. - United States of America

R. D. Thomas (27518)

Ophioglossaceae Ophioglossum crotalophoroides Walt. - United States of America

R. D. Thomas (27522)

Ophioglossaceae Ophioglossum crotalophoroides Walt. - United States of America

R. D. Thomas (27524)

Ophioglossaceae Ophioglossum crotalophoroides Walt. - United States of America

R. D. Thomas (27529)

Ophioglossaceae Ophioglossum crotalophoroides Walt. - United States of America

R. D. Thomas (27532)

Ophioglossaceae Ophioglossum crotalophoroides Walt. - United States of America

R. D. Thomas (27533)

Ophioglossaceae Ophioglossum crotalophoroides Walt. - United States of America

R. D. Thomas (27958)

Ophioglossaceae Ophioglossum crotalophoroides Walt. - United States of America

R. D. Thomas (27962)

Ophioglossaceae Ophioglossum crotalophoroides Walt. - United States of America

R. D. Thomas (27493)

Ophioglossaceae Ophioglossum nudicaule L.f. - United States of America

R. D. Thomas (39021)

Ophioglossaceae Ophioglossum petiolatum Hook. - United States of America

R. D. Thomas (39681)

Selaginellaceae Selaginella apoda (L.) M. L. Fernald - United States of America