Difference between revisions of "Cylindropuntia munzii"
Kakteenlexikon, 113. 1966.
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|common_names=Munz cholla | |common_names=Munz cholla | ||
| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Opuntia munzii | |name=Opuntia munzii | ||
|authority=C. B. Wolf | |authority=C. B. Wolf | ||
| + | |rank=species | ||
| + | |publication_title=Occas. Pap. Rancho Santa Ana Bot. Gard. | ||
| + | |publication_place=2: 79, fig. 23. 1938 | ||
}} | }} | ||
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name=Cylindropuntia munzii | name=Cylindropuntia munzii | ||
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|authority=(C. B. Wolf) Backeberg | |authority=(C. B. Wolf) Backeberg | ||
|rank=species | |rank=species | ||
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|publication year=1966 | |publication year=1966 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V4/V4_219.xml |
|subfamily=Cactaceae subfam. Opuntioideae | |subfamily=Cactaceae subfam. Opuntioideae | ||
|genus=Cylindropuntia | |genus=Cylindropuntia | ||
Latest revision as of 21:57, 5 November 2020
Trees or treelike shrubs, with trunk(s) and main branches spreading, bearing terminal tufts of usually drooping branchlets, 2–4 m. Stem segments easily detached, gray-green, 4–16 × 1.2–2.5 cm; tubercles prominent, narrowly oval, 1–2 cm; areoles subcircular to obdeltate, 5–7 × 3–4.5 mm; wool tawny to yellow-brown, aging gray. Spines (7–)9–14 per areole, at most areoles, erect or spreading, yellow, aging red- to gray-black with pale tips, terete or abaxial ones slightly flattened, the longest to 3 cm; marginal bristlelike spines shorter, 0–4; sheaths pale yellow becoming golden apically, baggy. Glochids in adaxial crescent and sometimes small tuft, yellow, inconspicuous, 0.5–2 mm. Flowers: inner tepals pale reddish maroon-brown, elliptic, of irregular lengths, 8–15 mm, emarginate-apiculate; filaments green; anthers yellow; style and stigma lobes cream. Fruits easily detached, tan when mature and fertile, globose, 17–24 × 17–21 mm, dry, tuberculate, spineless but bearing numerous very long glochids; basal tubercles not markedly longer than distal ones (except in sterile fruits); areoles 30–40. Seeds pale yellow, rounded-deltoid, slightly flattened, 3–4.5 × 3–4 mm, sides smooth; girdle smooth, not protruding. 2n = 22, 33.
Phenology: Flowering spring (Mar–May).
Habitat: Sonoran Desert, flats, hills, sandy to rocky soils
Elevation: 400-700 m
Distribution
Calif., Mexico (Baja California).
Discussion
Cylindropuntia munzii hybridizes with C. echinocarpa forming a shrub to 1.5 m, with shorter tubercles and baggy-sheathed spines obscuring the stem and bearing fruits with long glochids but no spines. The chromosome number for the hybrid is 2n = 22.
Selected References
None.