Difference between revisions of "Villadia squamulosa"

(S. Watson) Rose in N. L. Britton and J. N. Rose

in N. L. Britton and J. N. Rose, New N. Amer. Crassul., 5. 1903,.

Basionym: Cotyledon parviflora var. squamulosa S. Watson Proc. Amer. Acad. Arts 22: 473. 1887
Treatment appears in FNA Volume 8. Treatment on page 226.
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|genus=Villadia
 
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|species=Villadia squamulosa

Revision as of 00:12, 28 May 2020

Stems 1+ from tuberous roots, strict, with 20–70 ascending leaves, 1–3 mm diam., nearly smooth. Leaf blades 1–2.5 cm × 1–3 mm. Inflorescences of compact, 1–3-flowered cincinni, 10–30-branched, 3–15 cm × 5–13 mm. Flowers: corolla rose or with white margins, 2–4 × 5–7 mm, tube ± 0.5 mm, lobes ovate; nectaries bright yellow, drying dark red, cuneate-flabellate, ca. 1 × 1–1.3 mm. Follicles red-brown, 2.5 mm; styles abruptly spreading. Seeds brown, 0.5 mm. 2n = 34.


Phenology: Flowering late summer–early fall.
Habitat: Rock crevices
Elevation: 1800-2400 m

Distribution

V8 472-distribution-map.gif

Tex., Mexico (Chihuahua, Coahuila, Durango, Zacatecas).

Discussion

Like Echeveria strictiflora, Villadia squamulosa enters the flora area only in the mountains of western Texas. It is remarkable for its flabellate nectaries, larger than in other species and large for the size of the flower. Also, the chromosome number seems to be unique in the genus. It is close to V. laxa Moran & C. H. Uhl, of western Mexico, and to V. minutiflora Rose, of Oaxaca.

Selected References

None.

Lower Taxa

None.
... more about "Villadia squamulosa"
Reid V. Moran +
(S. Watson) Rose in N. L. Britton and J. N. Rose +
Cotyledon parviflora var. squamulosa +
Tex. +, Mexico (Chihuahua +, Coahuila +, Durango +  and Zacatecas). +
1800-2400 m +
Rock crevices +
Flowering late summer–early fall. +
in N. L. Britton and J. N. Rose, New N. Amer. Crassul., +
Villadia squamulosa +
Villadia +
species +