Difference between revisions of "Peniocereus greggii"

(Engelmann) Britton & Rose

Contr. U.S. Natl. Herb. 12: 428. 1909.

Common names: Desert night-blooming cereus Arizona queen-of-the-night
Illustrated
Basionym: Cereus greggii Engelmann in F. A. Wislizenus, Mem. Tour N. Mexico, 102. 1848
Treatment appears in FNA Volume 4. Treatment on page 156. Mentioned on page 157.
FNA>Volume Importer
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|common_names=Desert night-blooming cereus;Arizona queen-of-the-night
 
|common_names=Desert night-blooming cereus;Arizona queen-of-the-night
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|name=Cereus greggii
 
|name=Cereus greggii
 
|authority=Engelmann
 
|authority=Engelmann
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|rank=species
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|publication_title=in F. A. Wislizenus, Mem. Tour N. Mexico,
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|publication_place=102. 1848
 
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|distribution=sw United States;w Mexico.
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|discussion=<p>Varieties 2 (2 in the flora).</p>
 
|discussion=<p>Varieties 2 (2 in the flora).</p>
 
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name=Peniocereus greggii
 
name=Peniocereus greggii
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|authority=(Engelmann) Britton & Rose
 
|authority=(Engelmann) Britton & Rose
 
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|basionyms=Cereus greggii
 
|basionyms=Cereus greggii
 
|family=Cactaceae
 
|family=Cactaceae
|distribution=sw United States;w Mexico.
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|distribution=Ariz.;N.Mex.;Tex.;w Mexico.
 
|reference=None
 
|reference=None
 
|publication title=Contr. U.S. Natl. Herb.
 
|publication title=Contr. U.S. Natl. Herb.
 
|publication year=1909
 
|publication year=1909
|special status=
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|special status=Illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V4/V4_301.xml
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|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V4/V4_301.xml
 
|subfamily=Cactaceae subfam. Cactoideae
 
|subfamily=Cactaceae subfam. Cactoideae
 
|genus=Peniocereus
 
|genus=Peniocereus
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Latest revision as of 17:03, 6 November 2020

Shrubs, erect to sprawling, usually inconspicuous. Roots turnip-shaped, usually 15–30 × 5–12 cm (much larger ones known). Stems gray-green to gray, simple or with 2–5 branches, 40–120(–300) cm, distally 8–20 mm diam., at midlength ca. 10 mm diam., often narrowed toward base; wood hollow, solid-surfaced cylinders, 4–7 mm diam.; ribs 4–6, prominent; areoles (3.5–)12(–15) mm apart along ribs, circular to elliptic, 2–5 × 2 mm. Spines (9–)11–15(–17) per areole, usually in 3 vertical rows; abaxial 3–5 spines appressed, yellowish white throughout or only at tips, to 3 mm, puberulent when young; adaxial spines black, subulate, to 1 mm. Flowers: nocturnal (remaining open next day), 15–25 cm; scales of flower tubes green, tipped red or brown; outer tepals greenish white with brown to reddish midstripes; inner tepals white or lightly tinged cream or pink (or rarely all rose-pink), lanceolate-attenuate, apiculate, 4–7 cm, attenuate to mucronate; stamens 2.5 cm; anthers cream-yellow, 2 mm; style white, 10–14 cm; stigma lobes 9–11, white. Fruits bright red, darkening in age, ellipsoid, 60–90 × 40–50 mm. Seeds 3–4 × 2–2.5 mm. 2n = 22.

Distribution

V4 301-distribution-map.gif

Ariz., N.Mex., Tex., w Mexico.

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Key

1 Areoles elliptic, 4-5 × 2 mm; adaxial spines tending to be directed toward tip of plant; abaxial spines directed toward base of plant; flowers 15-17 × 5-6 cm Peniocereus greggii var. greggii
1 Areoles nearly circular, 2 × 2 mm; spines radially spreading; flowers 22-25 × 7-8 cm Peniocereus greggii var. transmontanus
... more about "Peniocereus greggii"
Donald J. Pinkava +
(Engelmann) Britton & Rose +
Cereus greggii +
Desert night-blooming cereus +  and Arizona queen-of-the-night +
Ariz. +, N.Mex. +, Tex. +  and w Mexico. +
Contr. U.S. Natl. Herb. +
Illustrated +
Cullmannia +, Neoevansia +  and Nyctocereus +
Peniocereus greggii +
Peniocereus +
species +