Adiantaceae GH: 00339038 Pellaea flexuosa (Kaulfuss ex Schlechtendal & Chamisso) Link USA: Texas the Comanche country J. L. Riddell 1773*1 1839-10
GH: 00339038 Pellaea ovata (Desvaux) Weatherby USA: Texas the Comanche country J. L. Riddell 1773*1 1839-10
Araceae GH: 01629464 Pistia stratiotes Linnaeus USA: Louisiana New Orleans: [no additional data] J. L. Riddell
Asteraceae GH: 00589762 Aphanostephus ramosissimus de Candolle USA: Texas J. L. Riddell
GH: 00589762 Aphanostephus riddellii Torrey & A. Gray USA: Texas J. L. Riddell
GH: 00872104 Aster azureus Lindley USA: Ohio [Worthington] J. L. Riddell
GH: 00872104 Aster oolentangiensis Riddell USA: Ohio [Worthington] J. L. Riddell
GH: 00006043 Brickellia dentata (de Candolle) Schultz Bipontinus USA: Texas J. L. Riddell
GH: 00006043 Brickellia riddellii (Torrey & A. Gray) A. Gray USA: Texas J. L. Riddell
GH: 00254608 Centauridium drummondii Torrey & A. Gray USA: Texas [North of San Antonio] J. L. Riddell
GH: 00006043 Clavigera dentata de Candolle USA: Texas J. L. Riddell
GH: 00006043 Clavigera riddellii Torrey & A. Gray USA: Texas J. L. Riddell
GH: 01834553 Lactuca floridana (Linnaeus) Gaertner USA: Ohio [data not captured] J. L. Riddell
GH: 00872104 Symphyotrichum oolentangiense (Riddell) G. L. Nesom USA: Ohio [Worthington] J. L. Riddell
GH: 00254608 Xanthisma texanum drummondii (Torrey & A. Gray) Semple USA: Texas [North of San Antonio] J. L. Riddell
Byttneriaceae GH: 00052399 Riddellia antiphylla Rafinesque USA: Louisiana New Orleans: J. L. Riddell
Campanulaceae GH: 00033010 Campanula ludoviciana Riddell USA: Louisiana New Orleans: J. L. Riddell 1018
GH: 00033010 Triodanis biflora (Ruiz & Pavon) Greene USA: Louisiana New Orleans: J. L. Riddell 1018
Dryopteridaceae GH: 00354673 Dryopteris ludoviciana (Kunze) Small USA: Louisiana J. L. Riddell 1785
GH: 00443977 Dryopteris normalis C. Christensen USA: Louisiana about New Orleans, & elsewhere J. L. Riddell 1784
GH: 00443977 Dryopteris rafinesquiana Riddell USA: Louisiana about New Orleans, & elsewhere J. L. Riddell 1784
Dysphaniaceae GH: 01784355 Dysphania anthelminticum (Linnaeus) Mosyakin & Clemants USA: Tennessee [data not captured] J. L. Riddell
Hippocastanaceae GH: 00050574 Aesculus ohioensis Riddell USA: Ohio J. L. Riddell
Lamiaceae GH: 00001953 Scutellaria saxatilis Riddell USA: Kentucky Knobs, Ky. J. L. Riddell
Lycopodiaceae GH: 00443978 Lycopodium corallinum Riddell USA: Texas at Kaolin creek, near the San Saba [River], ... J. L. Riddell 1797 1839-11
Malvaceae GH: 00306453 Anoda cristata (Linnaeus) Schlechtendal USA: Texas [data not captured] J. L. Riddell
GH: 00306453 Anoda lavaterioides Medikus USA: Texas [data not captured] J. L. Riddell
Orchidaceae AMES: 02066391 Platanthera blephariglottis (Willdenow) Lindley USA: Ohio Akron J. L. Riddell
Plantaginaceae GH: 00521815 Plantago heterophylla Nuttall USA: Louisiana New Orleans: J. L. Riddell 1084
GH: 00521815 Plantago ludoviciana Riddell USA: Louisiana New Orleans: J. L. Riddell 1084
GH: 01539345 Veronica serpyllifolia Linnaeus USA: Louisiana New Orleans: [data not captured] J. L. Riddell
Polygonaceae GH: 00036554 Eriogonum tenellum ramosissimum Bentham USA: Texas Kaolin Creek, between Piedernales and San Sa... J. L. Riddell 1441 1839-11
GH: 02362316 Persicaria meisneriana beyrichiana (Chamisso & Schlechtendal) C. C. Freeman USA: Louisiana [data not captured] J. L. Riddell
Pteridaceae GH: 00339038 Pteris zygophylla Riddell USA: Texas the Comanche country J. L. Riddell 1773*1 1839-10
Selaginellaceae GH: 00443978 Selaginella arenicola riddellii (Van Eseltine) R. M. Tryon USA: Texas at Kaolin creek, near the San Saba [River], ... J. L. Riddell 1797 1839-11
GH: 00443978 Selaginella corallina (Riddell) Wilbur & Whitson USA: Texas at Kaolin creek, near the San Saba [River], ... J. L. Riddell 1797 1839-11
GH: 00443978 Selaginella riddellii Van Eseltine USA: Texas at Kaolin creek, near the San Saba [River], ... J. L. Riddell 1797 1839-11
GH: 00443978 Selaginella rupestris (Linnaeus) Spring USA: Texas at Kaolin creek, near the San Saba [River], ... J. L. Riddell 1797 1839-11
Thelypteridaceae GH: 00354673 Lastrea petiolata Riddell USA: Louisiana J. L. Riddell 1785
GH: 00443977 Thelypteris kunthii (Desvaux) C. V. Morton USA: Louisiana about New Orleans, & elsewhere J. L. Riddell 1784
Vitaceae GH: 01577239 Nekemias arborea (Linnaeus) J. Wen & Boggan USA: New Mexico [no additional data] J. L. Riddell
