| Caryophyllaceae |
**
|
Drymarieae
| Small | Man. S.E. Fl. 496 | 1933 |
| Amaryllidaceae |
|
Hymenocallideae
| Small | Man. S.E. Fl. | |
| Malaceae |
!!
|
Malaceae
| Small | Fl. S.E. U.S. 495, 529 | 1903 |
| Rosaceae |
|
Maleae
| Small | Man. S.E. Fl. 632 | 1933 |
| Phyllonomaceae |
|
Phyllonomaceae
| Small | N. Amer. Fl. 22(1): 2 | 1905 |
| Picrodendraceae |
|
Picrodendraceae
| Small | J. New York Bot. Gard. 18(212): 184 | 1917 |
| |
|
Poales
| Small | Fl. S.E. U.S. 48 | 1903 |
| Pterostemonaceae |
|
Pterostemonaceae
| Small | N. Amer. Fl. 22(1): 2 | 1905 |
| Liliaceae |
|
Abama montana
| Small | Torreya 24(5): 86–87 | 1924 |
| Nyctaginaceae |
|
Abronia oblongifolia
| (A. Gray) Small | Fl. S.E. U.S. 407 | 1903 |
| Unknown |
|
Acacia filicioides var. texensis
| (Torr. & A. Gray) Small | Bull. New York Bot. Gard. 2: 93 | 1901 |
| Cactaceae |
|
Acanthocereus floridanus
| Small ex Britton & Rose | Cactaceae 4: 276 | 1923 |
| Polygonaceae |
|
Acanthoscyphus
| Small | Bull. Torrey Bot. Club 25(1): 53 | 1898 |
| Polygonaceae |
|
Acanthoscyphus parishii
| (Parry) Small | Bull. Torrey Bot. Club 25(1): 53 | 1898 |
| Sapindaceae |
|
Acer leucoderme
| Small | Bull. Torrey Bot. Club 22(8): 367 | 1895 |
| Sapindaceae |
|
Acer saccharum var. floridanum
| (Chapm.) Small & A. Heller | Mem. Torrey Bot. Club 3(1): 24 | 1892 |
| Apocynaceae |
|
Acerates delticola
| Small | Man. S.E. Fl. 1067, 1507 | 1933 |
| Polygonaceae |
*
|
Acetosella acetosella
| (L.) Small | Man. S.E. Fl. 446 | 1933 |
| Fabaceae |
|
Acmispon helleri
| (Britton) Small | Man. S.E. Fl. 687 | 1933 |
| Amaranthaceae |
|
Acnida concatenata
| (Moq.) Small | Fl. S.E. U.S. 393 | 1903 |
| Asteraceae |
|
Actinomeris paniculata
| (Walter) Small | Fl. S.E. U.S. 1340 | 1903 |
| Fabaceae |
|
Acuan fallax
| Small | Bull. New York Bot. Gard. 2(6): 97 | 1901 |
| Oleaceae |
|
Adelia globularis
| Small | Bull. New York Bot. Gard. 3(11): 433 | 1905 |
| Oleaceae |
|
Adelia parvifolia
| (A. Gray) Small | Fl. S.E. U.S. 919 | 1903 |
| Oleaceae |
|
Adelia pinetorum
| Small | Bull. New York Bot. Gard. 3(11): 433 | 1905 |
| Scrophulariaceae |
|
Adenoplea lindleyana
| (R. Fortune) Small | Shrubs Florida 109 | 1913 |
| Malpighiaceae |
|
Adenoporces
| Small | N. Amer. Fl. 25(2): 128 | 1910 |
| Malpighiaceae |
|
Adenoporces buxifolius
| (Cav.) Small | N. Amer. Fl. 25(2): 128 | 1910 |
| Euphorbiaceae |
|
Adenoropium berlandieri
| (Torr.) Small | Addisonia 11: 55 | 1926 [1927] |
| Simaroubaceae |
|
Aeschrion antillana
| (Eggers) Small | N. Amer. Fl. 25(3): 233 | 1911 |
| Fabaceae |
!
|
Aeschynomene pratensis
| Small | Bull. New York Bot. Gard. 3(11): 423 | 1905 |
| Sapindaceae |
|
Aesculus austrina
| Small | Bull. Torrey Bot. Club 28(6): 359 | 1901 |
| Fabaceae |
|
Afzelia texana
| (A. Gray) Small | Fl. S.E. U.S. 1072–1073 | 1903 |
| Orobanchaceae |
|
Agalinis gattingeri
| (Small) Small | Ill. Fl. N. U.S. (ed. 2) 3: 213 | 1913 |
| Orobanchaceae |
|
Agalinis heterophylla
| (Nutt.) Small | Ill. Fl. N. U.S. (ed. 2) 3: 209 | 1913 |
| Orobanchaceae |
|
Agalinis parvifolia
| (Chapm.) Small ex Britton | Ill. Fl. N. U.S. (ed. 2) 3: 212 | 1913 |
| Asparagaceae |
|
Agave neglecta
| Small | Fl. S.E. U.S. 289 | 1903 |
| Nartheciaceae |
|
Aletris lutea
| Small | Bull. New York Bot. Gard. 1(4): 278–279 | 1899 |
| Nyctaginaceae |
|
Allionia comata
| Small | Fl. S.E. U.S. 407, 1330 | 1903 |
| Nyctaginaceae |
|
Allionia oblongifolia
| (A. Gray) Small | Fl. S.E. U.S. 407, 1330 | 1903 |
| Nyctaginaceae |
|
Allionia texensis
| (J.M. Coult.) Small | Fl. S.E. U.S. 406 | 1903 |
| Amaryllidaceae |
|
Allium allegheniense
| Small | Bull. New York Bot. Gard. 1(4): 279–280 | 1899 |
| Amaryllidaceae |
|
Allium arenicola
| Small | Bull. Torrey Bot. Club 27(5): 276 | 1900 |
| Amaryllidaceae |
|
Allium continuum
| Small | Fl. S.E. U.S. 263, 1328 | 1903 |
| Amaryllidaceae |
|
Allium cuthbertii
| Small | Fl. S.E. U.S. 264, 1328 | 1903 |
| Amaryllidaceae |
|
Allium helleri
| Small | Fl. S.E. U.S. 264, 1328 | 1903 |
| Amaryllidaceae |
|
Allium microscordion
| Small | Fl. S.E. U.S. 263, 1328 | 1903 |
| Verbenaceae |
|
Aloysia ligustrina
| (Lag.) Small | Fl. S.E. U.S. 1013 | 1903 |
| Caryophyllaceae |
|
Alsine baldwinii
| Small | Fl. S.E. U.S. 422, 1330 | 1903 |
| Caryophyllaceae |
|
Alsine tennesseensis
| (C. Mohr) Small | Fl. S.E. U.S. 422 | 1903 |
| Caryophyllaceae |
|
Alsinopsis
| Small | Fl. S.E. U.S. 419–421, 1330 | 1903 |
| Caryophyllaceae |
|
Alsinopsis caroliniana
| (Walter) Small | Fl. S.E. U.S. 421, 1330 | 1903 |
| Caryophyllaceae |
|
Alsinopsis glabra
| (Michx.) Small | Fl. S.E. U.S. 420, 1330 | 1903 |
| Caryophyllaceae |
|
Alsinopsis groenlandica
| (Retz.) Small | Fl. S.E. U.S. 420, 1330 | 1903 |
| Caryophyllaceae |
|
Alsinopsis nuttallii
| Small | Fl. S.E. U.S. 420, 1330 | 1903 |
| Caryophyllaceae |
|
Alsinopsis patula
| (Michx.) Small | Fl. S.E. U.S. 420, 1330 | 1903 |
| Caryophyllaceae |
|
Alsinopsis stricta
| (Sw.) Small | Fl. S.E. U.S. 420 | 1903 |
| Caryophyllaceae |
|
Alsinopsis uniflora
| (Walter) Small | Fl. S.E. U.S. 420, 1330 | 1903 |
| Oleaceae |
|
Amarolea
| Small | Man. S.E. Fl. 1043, 1507, f. s.n. [p. 1043] | 1933 |
| Oleaceae |
|
Amarolea americana
| (L.) Small | Man. S.E. Fl. 1043 | 1933 |
| Oleaceae |
|
Amarolea megacarpa
| Small | Man. S.E. Fl. 1043, 1507 | 1933 |
| Apocynaceae |
|
Ammocallis
| Small | Fl. S.E. U.S. 935 | 1903 |
| Apocynaceae |
|
Ammocallis rosea
| (L.) Small | Fl. S.E. U.S. 936 | 1903 |
| Asteraceae |
|
Ammopursus
| Small | Bull. Torrey Bot. Club 51(9): 392–393 | 1924 |
| Asteraceae |
|
Ammopursus ohlingerae
| (S.F. Blake) Small | Bull. Torrey Bot. Club 51(9): 393 | 1924 |
| Fabaceae |
|
Amorpha dewinkeleri
| Small | Man. S.E. Fl. 689–690 | 1933 |
| Fabaceae |
|
Amorpha virgata
| Small | Bull. Torrey Bot. Club 21(1): 17, pl. 171 | 1894 |
| Ericaceae |
|
Ampelothamnus
| Small | Shrubs Florida 96, 133 | 1913 |
| Ericaceae |
|
Ampelothamnus phillyreifolius
| (Hook.) Small | Shrubs Florida 133 | 1913 |
| Orchidaceae |
|
Amphiglottis conopsea
| (R. Br.) Small | Man. S.E. Fl. 391 | 1933 |
| Apocynaceae |
|
Amphistelma scoparia
| (Nutt.) Small | Fl. Miami 200 | 1913 |
| Orchidaceae |
**
|
Anacheilium cochleatum var. triandrum
| Small | Man. S.E. Fl. 392 | 1933 |
| Myrtaceae |
|
Anamomis simpsonii
| Small | Torreya 17(12): 222–224, f. s.n. [p. 223] | 1917 [1918] |
| Ericaceae |
|
Andromeda canescens
| Small | N. Amer. Fl. 29(1): 61 | 1914 |
| Ericaceae |
|
Andromeda sguamulosa
| Small | | |
| Primulaceae |
|
Androsace diffusa
| Small | Bull. Torrey Bot. Club 25(6): 318–319 | 1898 |
| Primulaceae |
|
Androsace subumbellata
| (A. Nelson) Small | Bull. Torrey Bot. Club 25(6): 319 | 1898 |
| Annonaceae |
*
|
Annona palustris
| Small | | |
| Onagraceae |
|
Anogra californica
| (S. Watson) Small | Bull. Torrey Bot. Club 23(5): 176 | 1896 |
| Onagraceae |
|
Anogra deltoidea
| (Torr. & Frém.) Small | Bull. Torrey Bot. Club 23(5): 174 | 1896 |
| Onagraceae |
|
Anogra neomexicana
| Small | Bull. Torrey Bot. Club 23(5): 176 | 1896 |
| Onagraceae |
|
Anogra pallida var. brevifolia
| (Engelm.) Small | Bull. Torrey Bot. Club 23(5): 176 | 1896 |
| Onagraceae |
|
Anogra pallida var. engelmannii
| Small | Bull. Torrey Bot. Club 23(5): 176 | 1896 |
| Onagraceae |
|
Anogra pallida var. latifolia
| (Rydb.) Small | Bull. Torrey Bot. Club 23(5): 175 | 1896 |
| Onagraceae |
|
Anogra pallida var. runcinata
| (Engelm.) Small | Bull. Torrey Bot. Club 23(5): 175 | 1896 |
| Onagraceae |
|
Anogra simplex
| Small | Bull. Torrey Bot. Club 23(5): 175 | 1896 |
| Onagraceae |
|
Anogra trichocalyx
| (Nutt.) Small | Bull. Torrey Bot. Club 23(5): 174 | 1896 |
| Onagraceae |
|
Anogra xylocarpa
| (Coville) Small | Bull. Torrey Bot. Club 23(5): 174 | 1896 |
| Polygonaceae |
|
Antigonon macrocarpum
| Britton & Small | Sci. Surv. Porto Rico & Virgin Islands 5(2): 266 | 1924 |
| Caryophyllaceae |
|
Anychia nuttallii
| Small | Torreya 25(3): 60–61 | 1925 |
| Caryophyllaceae |
|
Anychiastrum
| Small | Fl. S.E. U.S. 400, 1330 | 1903 |
| Caryophyllaceae |
|
Anychiastrum baldwinii
| (Torr. & A. Gray) Small | Fl. S.E. U.S. 401 | 1903 |
| Caryophyllaceae |
|
Anychiastrum herniarioides
| (Michx.) Small | Fl. S.E. U.S. 401 | 1903 |
| Caryophyllaceae |
|
Anychiastrum montanum
| Small | Torreya 10: 230 | 1910 |
| Caryophyllaceae |
|
Anychiastrum riparium
| (Chapm.) Small | Fl. S.E. U.S. 401 | 1903 |
| Ranunculaceae |
|
Aquilegia australis
| Small | Bull. Torrey Bot. Club 25(9): 466 | 1898 |
| Ranunculaceae |
|
Aquilegia coccinea
| Small | Bull. New York Bot. Gard. 1(4): 280–281 | 1899 |
| Brassicaceae |
|
Arabis burkii
| (Porter) Small | Man. S.E. Fl. 572 | 1933 |
| Ericaceae |
|
Arbutus donnell-smithii
| Small | N. Amer. Fl. 29(1): 85 | 1914 |
| Ericaceae |
|
Arctous erythrocarpa
| Small | N. Amer. Fl. 29(1): 102 | 1914 |