Dudleya cymosa subsp. gigantea

(Rose) Moran

Madroño 14: 106. 1957,.

Endemic
Basionym: Dudleya gigantea Rose in N. L. Britton and J. N. Rose, New N. Amer. Crassul., 23. 1903
Treatment appears in FNA Volume 8. Treatment on page 181. Mentioned on page 180, 182.

Caudices mostly simple, 1–3 cm diam. Leaves: rosettes 10–25-leaved; blade gray-blue, oblong-oblanceolate, 4–17 × 1.5–6 cm, apex acute to acuminate, surfaces farinose, glaucous. Inflorescences: floral shoots 7–15-leaved, 15–45 cm; cincinni 3+, 5–20-flowered, 4–17 cm. Petals red, 9–10 × 2–3 mm. 2n = 34.


Phenology: Flowering late spring.
Habitat: On granite
Elevation: 300-600 m

Discussion

Subspecies gigantea grows in the foothills of the Sierra Nevada in Amador and Calaveras counties. It includes the largest specimens seen of Dudleya cymosa, and it seems to average larger than other subspecies. As with subsp. pumila, however, this one is not clearly set off from subsp. cymosa; some authors do not recognize it.

Selected References

None.

Lower Taxa

None.
perigynous +  and hypogynous +
acute +  and acuminate +
Reid V. Moran +
(Rose) Moran +
0.5cm +  and 3cm +
Dudleya gigantea +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
4 cm40 mm <br />0.04 m <br /> (17 cm170 mm <br />0.17 m <br />) +
lobed +  and toothed +
oblong-oblanceolate +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (6 cm60 mm <br />0.06 m <br />) +
1-3 times bifurcate also with lateral branches +, simple +  and not twisted +
bifurcate +
1-3 times bifurcate also with lateral branches +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
elongate +
1cm;3.5cm +
whorled +, opposite +  and alternate +
5 cm50 mm <br />0.05 m <br /> (17 cm170 mm <br />0.17 m <br />) +
4 cm40 mm <br />0.04 m <br /> (17 cm170 mm <br />0.17 m <br />) +
5-gonal +  and tubular +
2-4-branched +
obpyramidal +
300-600 m +
30 cm300 mm <br />0.3 m <br /> (50 cm500 mm <br />0.5 m <br />) +
15 cm150 mm <br />0.15 m <br /> (45 cm450 mm <br />0.45 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
branched +  and simple +
erect;pendent +
erect;spreading +
On granite +
axillary +  and terminal +
sessile +, petiolate +  and subclasping +
alternate +  and crowded +
persistent +
spreading +  and ascending +
usually connivent;adjacent +
wider than tall +
semi-inferior +  and superior +
tenuinucellate +, crassinucellate +  and bitegmic +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
perigynous +  and hypogynous +
9mm;10mm +
ascending +  and erect +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Flowering late spring. +
(3-)4-5(-12)[-30+]-carpellate +
not gibbous +
cross-ribbed +  and ribbed +
1 +  and many +
adnate +  and free +
antipetalous +
2-branched +  and simple +
distinct +
glaucous +  and farinose +
Dudleya cymosa subsp. gigantea +
Dudleya cymosa +
subspecies +
outcurved +
cylindric +  and 5-gonal +
perennial +, biennial +  and annual +