Cordylanthus rigidus subsp. littoralis

(Ferris) T. I. Chuang & Heckard

Syst. Bot. Monogr. 10: 42. 1986.

EndemicConservation concern
Basionyms: Adenostegia littoralis Ferris Bull. Torrey Bot. Club 45: 413, plate 10, fig. 13, plate 12, fig. 1. 1918
Synonyms: Cordylanthus littoralis (Ferris) J. F. Macbride C. rigidus var. littoralis (Ferris) Jepson
Treatment appears in FNA Volume 17. Treatment on page 676. Mentioned on page 675.

Stems downy to puberulent, hairs soft. Spikes 5–8-flowered; proximal bracts 15–20 mm, equal to or longer than flowers, midlobes green or red distally, lanceolate, 1.5–2.5 mm wide, apex acute to retuse. Flowers: corolla 15–20 mm.


Phenology: Flowering Jul–Sep.
Habitat: Dunes.
Elevation: 0–200 m.

Discussion

Subspecies littoralis grows only in the coastal dunes of the central coast in Monterey and Santa Barbara counties. It intergrades with subsp. rigidus. It is not known if this subspecies is genetically distinct or if its distinguishing features are caused by the unusual habitat where the plants grow.

Selected References

None.

Lower Taxa

None.

0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
rounded +  and galeate +
Acute (?) +  and Retuse (?) +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Kerry A. Barringer +
(Ferris) T. I. Chuang & Heckard +
Adenostegia littoralis +
not leathery +  and not fleshy +
1.4 cm14 mm <br />0.014 m <br /> (2 cm20 mm <br />0.02 m <br />) +
spathe-like +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
oblong-ovoid +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.5mm +  and 1.5mm +
0–200 m. +
2 +  and 1 +
indehiscent +, septicidal +, loculicidal +  and dehiscence +
Dunes. +
axillary +  and terminal +
deciduous +
hirsute +  and puberulent +
green +, ivory +  and purplish black +
linear-lanceolate +  and linear or slightly spatulate +
1mm;3mm +
toothed +, entire +  and 3-lobed +
0.8 cm8 mm <br />0.008 m <br /> (2 cm20 mm <br />0.02 m <br />) +
red +  and green +
lanceolate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
tenuinucellate +  and unitegmic +
campylotropous-like +
Flowering Jul–Sep. +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Syst. Bot. Monogr. +
10 +  and 25 +
oblong-ovoid +
Endemic +  and Conservation concern +
5-8-flowered +
subequal +
aerial +  and subterranean +
30 cm300 mm <br />0.3 m <br /> (100 cm1,000 mm <br />1 m <br />) +
not fleshy +
expanded +
Cordylanthus littoralis +  and C. rigidus var. littoralis +
Cordylanthus rigidus subsp. littoralis +
Cordylanthus rigidus +
subspecies +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +