Sideroxylon lanuginosum subsp. rigidum

(A. Gray) T. D. Pennington in Organizaton for Flora Neotropica

in Organizaton for Flora Neotropica, Fl. Neotrop. 52: 169. 1990,.

Basionym: Bumelia lanuginosa var. rigida A. Gray in A. Gray et al., Syn. Fl. N. Amer. ed. 2, 2(1): 68. 1886
Synonyms: Bumelia lanuginosa subsp. rigida (A. Gray) Cronquist Bumelia lanuginosa subsp. texana (Buckley) A. E. Murray Bumelia lanuginosa var. texana (Buckley) Cronquist Bumelia texana Sideroxylon lanuginosum var. rigidum (A. Gray) B. L. Turner
Treatment appears in FNA Volume 8. Treatment on page 240. Mentioned on page 239.
Revision as of 12:04, 30 July 2020 by imported>Volume Importer
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Leaves: petiole hairy to glabrate, hairs white to gray; blade dull adaxially, 15–50 mm, abaxial surface densely to sparsely villous or glabrate, hairs white to gray.


Phenology: Flowering Jun–Jul.
Habitat: Upland forests, woodlands, scrublands
Elevation: 400-2000 m

Distribution

V8 495-distribution-map.gif

Ariz., N.Mex., Okla., Tex., Mexico (Coahuila), Mexico (Nuevo León), Mexico (Tamaulipas)

Discussion

Subspecies rigidum occurs in the southwestern portion of the range and has leaf indument ranging from tomentose to glabrate. Variation patterns are especially complex in southern and western Texas and in northern Mexico.

Selected References

None.

Lower Taxa

None.
glabrate +  and villous +
sagittate +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
acute +, rounded +  and obtuse +
Wayne J. Elisens +  and J. Matthew Jones +
(A. Gray) T. D. Pennington in Organizaton for Flora Neotropica +
acute +  and attenuate +
Bumelia lanuginosa var. rigida +
purplish black +
broadly ellipsoid +  and obovoid +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (9.7 cm97 mm <br />0.097 m <br />) +
oblanceolate;spatulate +
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
tubular +, cyathiform +  and rotate +
Ariz. +, N.Mex. +, Okla. +, Tex. +, Mexico (Coahuila) +, Mexico (Nuevo León) +  and Mexico (Tamaulipas) +
400-2000 m +
horizontal +, oblique +  and vertical +
Upland forests, woodlands, scrublands +
white;gray +
falcate +  and lanceolate +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
deciduous +
divided +
2 +  and 1 +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
defoliated +  and leafy +
basal +  and superior +
0.1 cm1 mm <br />0.001 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
tenuinucellate +, unitegmic +  and hemitropous +
glabrous +  and villous +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
hairy +  and glabrate +
0.2 cm2 mm <br />0.002 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Flowering Jun–Jul. +
5(-8)-carpellate +
in Organizaton for Flora Neotropica, Fl. Neotrop. +
buff;light-brown +
ellipsoid +
0.6 cm6 mm <br />0.006 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
indurate +
distinct +
lanate-villous +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
epipetalous +  and antipetalous +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
erose +  and entire +
lanceolate +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
armed +  and not armed +
glabrescent +  and villous +
lobed +  and capitate +
included +, exserted +  and terminal +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
glabrescent +, glabrate +  and villous sericeous or strigose +
Bumelia lanuginosa subsp. rigida +, Bumelia lanuginosa subsp. texana +, Bumelia lanuginosa var. texana +, Bumelia texana +  and Sideroxylon lanuginosum var. rigidum +
Sideroxylon lanuginosum subsp. rigidum +
Sideroxylon lanuginosum +
subspecies +
evergreen +  and deciduous +
tree +  and shrub +