Infraspecies

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Total: 30

infraspecies valid

Thyrsopteris microloba Varietas alata Fontaine Monogr. U.S. Geol. Surv., 15(1 [Text], 2 [Atlas]): 140. Nov 1889

infraspecies valid

Thyrsopteris meekiana Varietas angustiloba Fontaine Monogr. U.S. Geol. Surv., 15(1 [Text], 2 [Atlas]): 126. Nov 1889

infraspecies valid

Thyrsopteris insignis Varietas angustipennis Fontaine Monogr. U.S. Geol. Surv., 15(1 [Text], 2 [Atlas]): 128. Nov 1889

infraspecies valid

Taxodium brookense Varietas angustifolium Fontaine Monogr. U.S. Geol. Surv., 15(1 [Text], 2 [Atlas]): 256. Nov 1889

infraspecies valid

Taeniopteris newberryana Varietas angusta Fontaine, I.C. White Sec. Geol. Surv. Pennsylvania Rept. Progr., PP: 93. Jun 1880

infraspecies valid

Sphenolepidium sternbergianum Varietas densifolium Fontaine Monogr. U.S. Geol. Surv., 15(1 [Text], 2 [Atlas]): 261. Nov 1889

infraspecies valid

Sequoia reichenbachii Varietas longifolia Fontaine Monogr. U.S. Geol. Surv., 15(1 [Text], 2 [Atlas]): 244. Nov 1889

infraspecies valid

Scleropteris elliptica Varietas longifolia Fontaine Monogr. U.S. Geol. Surv., 15(1 [Text], 2 [Atlas]): 152. Nov 1889

infraspecies valid

Sassafras cretaceum Varietas heterolobum Fontaine Monogr. U.S. Geol. Surv., 15(1 [Text], 2 [Atlas]): 289. Nov 1889

infraspecies valid

Rhacophyllum filiciforme Varietas majus Fontaine, I.C. White Sec. Geol. Surv. Pennsylvania Rept. Progr., PP: 93. Jun 1880

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