Dudleya saxosa subsp. collomiae

(Rose) Moran

Madroño 14: 108. 1957,.

Endemic
Basionym: Dudleya collomiae Rose Desert Pl. Life 6: 68. 1934 (as collomae)
Synonyms: Echeveria collomiae (Rose) Kearney & Peebles
Treatment appears in FNA Volume 8. Treatment on page 187. Mentioned on page 188.

Caudices 1.5–3 cm diam. Leaf-blades 5–15 × 1–2.5 cm, 2–6 mm thick. Inflorescences: floral shoots red, 5–12-leaved, 15–40 × 0.3–0.6 cm; cincinni 4–15-flowered, 3–12 cm. Pedicels 5–20 mm. Flowers: sepals 4–7 mm; petals bright-yellow, red-tinged, 12–16 (–20) mm. 2n = 136.


Phenology: Flowering spring.
Habitat: Rock crevices and rocky slopes
Elevation: 400-1800 m

Discussion

The well-isolated polyploid subsp. collomiae is similar to the diploid subsp. aloides, differing mainly in its larger flowers.

Selected References

None.

Lower Taxa

None.

"wider" is not a number.

perigynous +  and hypogynous +
Reid V. Moran +
(Rose) Moran +
0.5cm +  and 2.5cm +
Dudleya collomiae +
lobed +  and toothed +
tapering +  and oblong-lanceolate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
1 times bifurcate +, simple +  and not twisted +
bifurcate +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
branched +  and simple +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
elongate +
whorled +, opposite +  and alternate +
3 cm30 mm <br />0.03 m <br /> (12 cm120 mm <br />0.12 m <br />) +
5-gonal +  and tubular +
400-1800 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 +
Rock crevices and rocky slopes +
axillary +  and terminal +
2mm +  and 6mm +
sessile +, petiolate +  and subclasping +
alternate +  and crowded +
persistent +
0.5 cm5 mm <br />0.005 m <br /> (7 cm70 mm <br />0.07 m <br />) +
triangular-lanceolate +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
usually connivent;adjacent +
wider than tall +
semi-inferior +  and superior +
tenuinucellate +, crassinucellate +  and bitegmic +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
perigynous +  and hypogynous +
1.6 cm16 mm <br />0.016 m <br /> (2 cm20 mm <br />0.02 m <br />) +
red-tinged +  and bright-yellow +
8mm;20mm +
ascending +  and erect +
1.2 cm12 mm <br />0.012 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Flowering spring. +
(3-)4-5(-12)[-30+]-carpellate +
not gibbous +
cross-ribbed +  and ribbed +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
1 +  and many +
adnate +  and free +
antipetalous +
2-branched +  and simple +
distinct +
glaucous +  and not farinose +
Echeveria collomiae +
Dudleya saxosa subsp. collomiae +
Dudleya saxosa +
subspecies +
outcurved +
cylindric +  and 5-gonal +
perennial +, biennial +  and annual +