View source for Sideroxylon lanuginosum

{{Treatment/ID
|accepted_name=Sideroxylon lanuginosum
|accepted_authority=Michaux
|publications={{Treatment/Publication
|title=Fl. Bor.-Amer.
|place=1: 122. 1803 ,
}}
|common_names=Gum bully;chittamwood
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Bumelia lanuginosa
|authority=(Michaux) Persoon
|rank=species
}}
|hierarchy=Sapotaceae;Sideroxylon;Sideroxylon lanuginosum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Sapotaceae]]</div><div class="higher-taxon"><small>genus</small>[[Sideroxylon]]</div><div class="higher-taxon"><small>species</small>[[Sideroxylon lanuginosum]]</div></div>
|volume=Volume 8
|mention_page=page 237, 238, 240, 241, 244
|treatment_page=page 239
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs </b>or trees, to 15 m. <b>Stems</b> not armed or armed, villous, glabrescent. <b>Leaves</b> deciduous; petiole 2–14 mm, villous or sparsely hairy to glabrate; blade (dull to lustrous adaxially), oblong or oblanceolate to spatulate, 15–97 × 7–40 mm, base acute to attenuate, margins plane, apex rounded to obtuse, rarely acute, abaxial surface usually villous, rarely glabrate, venation visible, midrib villous (hairs white or gray to tawny, entangled, wavy), adaxial surface glabrate (hairs scattered along midribs), midrib flat, marginal vein absent. <b>Inflorescences</b> 7–17-flowered. <b>Pedicels</b> 2–7 mm, villous, rarely glabrous. <b>Flowers</b>: calyx 1.9–3.2 mm diam.; sepals (4–)5, 1.8–2.8 × 1.4–1.9 mm, lanate-villous; petals (4–)5(–6), white, median segment oblong to ovate, 1.2–1.8 mm, lateral segments lanceolate or falcate, 0.8–1.8 mm; stamens 5(–6), 2.5–2.8 mm; staminodes lanceolate, 1.3–2.5 mm, entire or erose; anthers sagittate, 0.8–1.2 mm; pistil 5(–8)-carpellate; ovary 5(–8)-locular, 1–1.2 mm, strigose; style 1.1–1.5 mm. <b>Berries</b> purplish black, broadly ellipsoid to obovoid, 7–12 mm, glabrate. <b>Seeds</b> 6–11 mm.</span><!--

-->{{Treatment/Body
|distribution=Ala.;Ariz.;Ark.;Fla.;Ga.;Ill.;Kans.;Ky.;La.;Miss.;Mo.;N.Mex.;Okla.;S.C.;Tex.;n Mexico.
|discussion=<p>Subspecies 3 (3 in the flora).</p><!--
--><p><i>Sideroxylon lanuginosum</i> is the most widespread and morphologically variable North American species of the genus. Segregate species, subspecies, and varieties have been recognized based on variation in thorn presence, leaf size, abaxial leaf indument, and color of the leaf hairs. Based on our observations and those of A. Cronquist (1945c) and T. D. Pennington (1990), morphological variants are generally consistent within regions. Most recent authors have recognized three to five subspecies and/or varieties in <i>S. lanuginosum</i> (e.g., D. S. Correll and M. C. Johnston 1970; J. T. Kartesz and K. N. Gandhi 1990; B. L. Turner et al. 2003).</p><!--
--><p>We recognize three subspecies without varieties based on differences in leaf size and hair color on the abaxial leaf surfaces. A. Cronquist (1949) and T. D. Pennington (1990) also recognized three subspecies; Cronquist further divided <i></i>subsp.<i> oblongifolium</i> by hair color (variants with white hairs = <i></i>var.<i> albicans</i>) and the smaller-leaved <i></i>subsp.<i> rigidum</i> by density of indument (less hairy variants = <i></i>var.<i> texanum</i>). Discriminating among leaf surface hair densities and the white to gray hair color continuum is particularly difficult in areas of parapatry and sympatry among subspecies in Oklahoma, Texas, and northern Mexico. We present a conservative treatment and encourage detailed studies of morphological and molecular variation throughout the range of the <i>S. lanuginosum</i> complex.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Leaf blades 15-50 mm.
|[[Sideroxylon lanuginosum subsp. rigidum|Sideroxylon lanuginosum subsp. rigidum]]
|-id=key-0-1
|1
|Leaf blades 52-97 mm
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Abaxial leaf hairs tawny.
|[[Sideroxylon lanuginosum subsp. lanuginosum|Sideroxylon lanuginosum subsp. lanuginosum]]
|-id=key-0-2
|2
|Abaxial leaf hairs white to gray.
|[[Sideroxylon lanuginosum subsp. oblongifolium|Sideroxylon lanuginosum subsp. oblongifolium]]
|}
</div></div><!--

-->{{#Taxon:
name=Sideroxylon lanuginosum
|authority=Michaux
|rank=species
|parent rank=genus
|synonyms=Bumelia lanuginosa
|basionyms=
|family=Sapotaceae
|distribution=Ala.;Ariz.;Ark.;Fla.;Ga.;Ill.;Kans.;Ky.;La.;Miss.;Mo.;N.Mex.;Okla.;S.C.;Tex.;n Mexico.
|reference=None
|publication title=Fl. Bor.-Amer.
|publication year=
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V8/V8_492.xml
|genus=Sideroxylon
|species=Sideroxylon lanuginosum
}}<!--

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[[Category:Treatment]]
[[Category:Sideroxylon]]
[[Category:Revised Since Print]]