Difference between revisions of "Quercus hypoleucoides"

A. Camus

Bull. Mus. Natl. Hist. Nat., sér. 2, 4: 124. 1932.

Common names: Silverleaf oak
Illustrated
Synonyms: Quercus hypoleuca Engelmann
Treatment appears in FNA Volume 3.
FNA>Volume Importer
imported>Volume Importer
 
(6 intermediate revisions by 2 users not shown)
Line 10: Line 10:
 
|special_status={{Treatment/ID/Special_status
 
|special_status={{Treatment/ID/Special_status
 
|code=F
 
|code=F
|label=Selected by author to be illustrated
+
|label=Illustrated
 
}}
 
}}
 
|basionyms=
 
|basionyms=
 
|synonyms={{Treatment/ID/Synonym
 
|synonyms={{Treatment/ID/Synonym
|name=Species
+
|name=Quercus hypoleuca
 
|authority=Engelmann
 
|authority=Engelmann
 +
|rank=species
 
}}
 
}}
 
|hierarchy=Fagaceae;Quercus;Quercus sect. Lobatae;Quercus hypoleucoides
 
|hierarchy=Fagaceae;Quercus;Quercus sect. Lobatae;Quercus hypoleucoides
Line 31: Line 32:
 
|elevation=1500-2700 m
 
|elevation=1500-2700 m
 
|distribution=Ariz.;N.Mex.;Tex.;n Mexico.
 
|distribution=Ariz.;N.Mex.;Tex.;n Mexico.
|discussion=<p>Quercus hypoleucoides reportedly hybridizes with Q. gravesii (Q. ×inconstans E. J. Palmer [= Q. livermorensis C. H. Muller]) (see C. H. Muller 1951). Several specimens from Pima County, Arizona, fall outside the range of typical Q. hypoleucoides, suggesting hybridization with the Mexican Q. mcvaughii Spellenberg (R. Spellenberg 1992).</p>
+
|discussion=<p><i>Quercus hypoleucoides</i> reportedly hybridizes with <i>Q. gravesii</i> (Q. ×inconstans E. J. Palmer [= Q. livermorensis C. H. Muller]) (see C. H. Muller 1951). Several specimens from Pima County, Arizona, fall outside the range of typical <i>Q. hypoleucoides</i>, suggesting hybridization with the Mexican Q. mcvaughii Spellenberg (R. Spellenberg 1992).</p>
 
|tables=
 
|tables=
 
|references=
 
|references=
Line 40: Line 41:
 
-->{{#Taxon:
 
-->{{#Taxon:
 
name=Quercus hypoleucoides
 
name=Quercus hypoleucoides
|author=
 
 
|authority=A. Camus
 
|authority=A. Camus
 
|rank=species
 
|rank=species
 
|parent rank=section
 
|parent rank=section
|synonyms=Species
+
|synonyms=Quercus hypoleuca
 
|basionyms=
 
|basionyms=
 
|family=Fagaceae
 
|family=Fagaceae
Line 54: Line 54:
 
|publication title=Bull. Mus. Natl. Hist. Nat., sér.
 
|publication title=Bull. Mus. Natl. Hist. Nat., sér.
 
|publication year=1932
 
|publication year=1932
|special status=Selected by author to be illustrated
+
|special status=Illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V3/V3_863.xml
+
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V3/V3_863.xml
 
|genus=Quercus
 
|genus=Quercus
 
|section=Quercus sect. Lobatae
 
|section=Quercus sect. Lobatae

Latest revision as of 21:51, 5 November 2020

Trees or shrubs, evergreen, to 10 m. Bark black, deeply furrowed. Twigs dark reddish brown, 1.5-3 mm diam., pubescent. Terminal buds light chestnut brown, ovoid, 2.5-4.5 mm, glabrous except for ciliate scale margins, occasionally with tuft of hairs at apex. Leaves: petiole 1.5-13 mm, densely pubescent. Leaf blade narrowly ovate to ovate or elliptic, 45-120 × 15-40 mm, base cuneate to rounded, margins strongly revolute, entire or spinose with up to 11 awns, apex acute to attenuate; surfaces abaxially densely tawny- or white-tomentose, adaxially noticeably rugose, glabrous. Acorns annual or biennial; cup deeply saucer- or cup-shaped, 4.5-7 mm high × 6-13 mm wide, covering 1/3 nut or less, outer surface pubescent to sparsely puberulent, inner surface pubescent to floccose, scales appressed, blunt; nut ellipsoid to oblong, 8-16 × 5-10 mm, glabrous, scar diam. 2.5-5.5 mm.


Phenology: Flowering spring.
Habitat: Common in moist canyons and on ridges
Elevation: 1500-2700 m

Distribution

V3 863-distribution-map.gif

Ariz., N.Mex., Tex., n Mexico.

Discussion

Quercus hypoleucoides reportedly hybridizes with Q. gravesii (Q. ×inconstans E. J. Palmer [= Q. livermorensis C. H. Muller]) (see C. H. Muller 1951). Several specimens from Pima County, Arizona, fall outside the range of typical Q. hypoleucoides, suggesting hybridization with the Mexican Q. mcvaughii Spellenberg (R. Spellenberg 1992).

Selected References

None.

Lower Taxa

None.