Contains 3 accepted taxa overall.

Characteristics
Sideroxylon L.
BULLY
Classification
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ERICALES
Sideroxylon
Citation
SIDEROXYLON Linnaeus, Sp. Pl. 192. 1753.
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TYPE: Sideroxylon inerme Linnaeus Lectotypified by Baillon, Bull. Mens. Soc. Linn. Paris 1: 908. 1891.
Species
Scientific Name Common Name Herbarium Specimens Status Photos
Sideroxylon lanuginosum ssp. lanuginosum Eastern Gum Bumelia, Eastern Gum Bully
Sideroxylon lycioides Buckthorn Bumelia, Buckthorn Bully, Carolina Buckthorn
Sideroxylon reclinatum ssp. reclinatum Smooth Bumelia, Florida Bully
Identification Key
1.  Petiole (9-)15-40(-50) mm long (shorter on immature plants); leaf blade mostly 7-20 cm long, the margin often undulate; corolla lobes light yellow, lacking lateral segments; mature fruit 10-30 mm long, yellow to orange; seeds 15-20 mm long
1.  Petiole 1-11(-14) mm long; leaf blade mostly 0.5-13 cm long, the margin usually plane; corolla lobes mostly white, with 2 lateral segments; mature fruit purple, 3-13 mm long; seeds 3-12 mm long
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2.  Mature stems lacking thorns and short shoots; leaf blades acute-acuminate towards the apex; inflorescence nodes often crowded with the inflorescences touching or overlapping or nearly so; ovary glabrous
2.  Mature stems with thorns and/or short shoots, the short shoots sometimes with pseudowhorled leaves; leaf blades rounded to rounded-acute at the apex (or often acute-acuminate in S. lycioides); inflorescence nodes usually well-spaced with the inflorescences not touching or occasionally somewhat overlapping; ovary pubescent
3
3.  Stem and leaves glaucous; leaf blade midvein often indistinct near the tip and branching or sinuous, reticulate venation sometimes obscure, the upper surface often with fine pellucid spicules
3.  Stem and leaves not glaucous; leaf blade midvein mostly straight and distinct to the tip, reticulate venation generally apparent (unless obscured by pubescence), the upper surface without spicules
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4.  Leaf blade underside lustrous with dense pubescence, the green color of the blade surface not apparent
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4.  Leaf blade underside generally not lustrous, glabrous to moderately pubescent, the green color of the blade surface generally apparent
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5.  Young stems glabrate, the stem bark green to cream-white becoming light gray; mature leaf blade underside with appressed silvery white trichomes; pedicels 4-5 mm long; corolla tube 1-1.6 mm long, median lobe 1.2-1.6 mm long, lateral segments 1.5-2.1 mm long (from junction with adjacent lateral segment); filament 1.3-1.6 mm long
5.  Young stems moderately to densely pubescent, the stem bark green to green-brown becoming dark brown, red-brown, purple, to purple-gray; mature leaf blade underside with red-brown to only slightly tawny to silvery white trichomes, some trichomes villous or ascending; pedicels 6-12 mm long; corolla tube 1.5-2 mm long, median lobe 1.4-2.2 mm long, lateral segments 2-2.5 mm long (from junction with adjacent lateral segment); filament 1.5-2.5 mm long
6.  Leaf blades 1-3(-5) cm long
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6.  Leaf blades (3-)5-12 cm long
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7.  Mature shrub 1 m tall or less; young stems, petiole (often), pedicels, and sepals densely villous, strigose-villous, to strigose with red-brown hairs; fruit usually >1 cm long
7.  Mature shrub or tree, taller than 1 m; young stems, petiole, pedicels, and sepals strigose to glabrate, occasionally sparsely villous, with whitish to tawny hairs; fruit usually <1 cm long
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8.  Leaf blade lower surface usually persistently pubescent, sometimes glabrate, epidermal cell outlines marked by a distinct impressed groove, surface reticulate-ornamented; sepals and ovary usually densely strigose, sometimes glabrate
8. Leaf blade lower surface glabrate, pubescent only along the midvein, epidermal cell outlines indistinct often, surface mostly smooth and irregularly undulating; sepals and ovary glabrate
9.  Young stems strigose to glabrate; leaf blade with the tip acute-acuminate (rarely rounded), the lower surface glabrous or glabrate (hairs scattered along midribs); pedicels glabrous
9.  Young stems villous to glabrate; leaf blade with the tip rounded to bluntly acute (rarely acute-acuminate), the lower surface hairy
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10.  Pedicels lanate or glabrous; inflorescence with (2-)6-25 flowers; pedicels villous to glabrate; sepals villous; stamens 2.5-2.8 mm long; styles 1-1.5 mm long
10.  Pedicels glabrous or glabrate; inflorescence with 1-9 flowers; pedicels glabrate; sepals glabrous to villous; stamens 1-1.3 mm long; styles 0.8-1 mm long
Genus Synonyms
Synonym Full Citation Basionym Type
No synonyms found.