Difference between revisions of "Cylindropuntia abyssi"
Cactaceae 1: 184. 1958.
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|elevation=500-800 m | |elevation=500-800 m | ||
|distribution=Ariz. | |distribution=Ariz. | ||
| − | |discussion=<p>Cylindropuntia abyssi is tentatively viewed as a narrow endemic relict in Peach Springs Canyon, Mojave County, Arizona, but may well be a persistent hybrid derivative, most likely involving C. bigelovii.</p><!-- | + | |discussion=<p><i>Cylindropuntia abyssi</i> is tentatively viewed as a narrow endemic relict in Peach Springs Canyon, Mojave County, Arizona, but may well be a persistent hybrid derivative, most likely involving <i>C. bigelovii</i>.</p><!-- |
| − | --><p>Hybrids between Cylindropuntia abyssi and C. acanthocarpa have a shrub habit, long-divergent and loosely sheathed spines, and more elongate tubercles than C. abyssi.</p> | + | --><p>Hybrids between <i>Cylindropuntia abyssi</i> and <i>C. acanthocarpa</i> have a shrub habit, long-divergent and loosely sheathed spines, and more elongate tubercles than <i>C. abyssi</i>.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1958 | |publication year=1958 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V4/V4_218.xml |
|subfamily=Cactaceae subfam. Opuntioideae | |subfamily=Cactaceae subfam. Opuntioideae | ||
|genus=Cylindropuntia | |genus=Cylindropuntia | ||
Revision as of 17:26, 18 September 2019
Trees and shrubs, openly branched, to 1 m. Stem segments somewhat detachable, 8–14 × 1.8–2.5 cm; tubercles prominent, 0.6–1.5 cm, moderately broad; areoles elliptic, 5–7 × 2.5–3.5 mm; wool white to gray. Spines in brushlike clusters of 10–15 per areole, flexible, whitish to yellowish tan, aging gray; abaxial ones erect to descending, recurved, angularly flattened to flattened, sometimes twisted, the longest 23–38 mm; adaxial ones ascending, erect, divergent, terete to angularly flattened basally, the longest 18–32 mm; sheaths silvery white. Glochids in inconspicuous small adaxial tuft, pale yellow, 0.5–1.5 mm, few much longer and scattered along periphery of areole. Flowers: inner tepals pale yellow to greenish yellow, spatulate, 15–20 mm, apiculate; filaments yellow; anthers yellow; style off-white; stigma lobes yellowish. Fruits green becoming dull yellow, dry, tuberculate, spineless or with 1–2 short spines; tubercles subequal in length; umbilicus deep, 7 × 15–18 mm; areoles 16–24. Seeds tan, slightly angular and warped, 3–4 × 3.2–3.5 mm; girdle smooth. 2n = 22.
Phenology: Flowering spring–early summer (Mar–Jun).
Habitat: Desert scrub, limestone ledges and crests
Elevation: 500-800 m
Discussion
Cylindropuntia abyssi is tentatively viewed as a narrow endemic relict in Peach Springs Canyon, Mojave County, Arizona, but may well be a persistent hybrid derivative, most likely involving C. bigelovii.
Hybrids between Cylindropuntia abyssi and C. acanthocarpa have a shrub habit, long-divergent and loosely sheathed spines, and more elongate tubercles than C. abyssi.
Selected References
None.