Dudleya verityi

K. M. Nakai

Cact. Succ. J. (Los Angeles) 55: 196, figs. 1–5, 7. 1983 ,.

Common names: Verity’s dudleya
EndemicConservation concern
Treatment appears in FNA Volume 8. Treatment on page 189. Mentioned on page 179, 190.

Caudices branched apically, (cespitose), 2–10 × 0.2–1 cm, axillary branches absent. Leaves: rosettes 25–100+, in clumps, 6–10-leaved, 2–8 cm diam.; blade blue-green, oblong-lanceolate, 2–5 × 0.4–0.8 cm, 2–3 mm thick, base 0.5–0.8 cm wide, apex acute to acuminate, surfaces not farinose, glaucous. Inflorescences: cyme mostly 2–3-branched, obpyramidal; branches not twisted (flowers on topside), simple or 1–2 times bifurcate, (3–6 cm diam.); cincinni 1–3, 2–10-flowered, circinate, 2–5 cm; floral shoots 3–15 × 0.3–0.6 cm; leaves 5–20, ascending, lanceolate, 8–10 × 5–7 mm, apex acute. Pedicels ascending to erect, not bent in fruit, 3–5 mm. Flowers: calyx 4–5 × 5–7 mm; petals connate 1–2 mm, bright-yellow with greenish midribs, 10–14 × 2.5–4 mm, apex sharply acute, tips outcurved; pistils connivent, erect. Unripe follicles erect. 2n = 34.


Phenology: Flowering late spring.
Habitat: North-facing volcanic rocks
Elevation: ca. 100 m

Discussion

Of conservation concern.

Dudleya verityi forms clumps to 4 dm in diameter and is known from near Mount Conejo in the Santa Monica Mountains; it is considered to be seriously threatened (California Native Plant Society, http://cnps.web.aplus.net/cgi-bin/inv/inventory.cgi). It hybridizes in nature with D. blochmaniae subsp. blochmaniae.

Selected References

None.

Lower Taxa

None.
... more about "Dudleya verityi"
perigynous +  and hypogynous +
acute +  and acuminate +
Reid V. Moran +
K. M. Nakai +
0.5cm +  and 0.8cm +
lobed +  and toothed +
oblong-lanceolate +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
1-2 times bifurcate +, simple +  and not twisted +
bifurcate +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
elongate +
0.2cm;1cm +
whorled +, opposite +  and alternate +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Verity’s dudleya +
5-gonal +  and tubular +
2-3-branched +
obpyramidal +
ca. 100 m +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
branched +  and simple +
erect;pendent +
erect;spreading +
North-facing volcanic rocks +
axillary +  and terminal +
sessile +, petiolate +  and subclasping +
alternate +  and crowded +
persistent +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
lanceolate +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
usually connivent;adjacent +
wider than tall +
semi-inferior +  and superior +
tenuinucellate +, crassinucellate +  and bitegmic +
ascending;erect +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
perigynous +  and hypogynous +
bright-yellow +
10mm;14mm +
ascending +  and erect +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Flowering late spring. +
(3-)4-5(-12)[-30+]-carpellate +
not gibbous +
Cact. Succ. J. (Los Angeles) +
cross-ribbed +  and ribbed +
1 +  and many +
Endemic +  and Conservation concern +
adnate +  and free +
antipetalous +
2-branched +  and simple +
distinct +
glaucous +  and not farinose +
Dudleya verityi +
Dudleya subg. Dudleya +
species +
outcurved +
cylindric +  and 5-gonal +
perennial +, biennial +  and annual +