Limnanthes floccosa subsp. pumila

(Howell) Arroyo

Brittonia 25: 187. 1973.

Common names: Dwarf meadowfoam
Basionym: Limnanthes pumila Howell Fl. N.W. Amer., 108. 1897
Synonyms: Limnanthes floccosa var. pumila (Howell) C. T. Mason
Treatment appears in FNA Volume 7. Treatment on page 183. Mentioned on page 175, 182.
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Herbage glabrous. Stems decumbent. Flowers cupshaped; sepals not accrescent, lanceolate to lanceolate-ovate, 7.5–8 mm, abaxially and adaxially glabrous; petals oblong, 7.5–8.5 mm, apex obtuse (not emarginate); filaments 4.2–4.7 mm; anthers ± 1 mm, usually dehiscing introrsely; style 3–3.5 mm. Nutlets 3–5, tubercles broad-based, platelike cones.


Phenology: Flowering Mar–May.
Habitat: Edges of deep vernal pools on lava flows
Elevation: 600 m

Discussion

Of conservation concern.

Subspecies pumila is found only on the summits of Upper Table Rock and Lower Table Rock, in Jackson County.

Selected References

None.

Lower Taxa

None.
tetrasporangiate +
1 cm10 mm <br />0.01 m <br /> (?) +
emarginate +  and truncate +
Nancy R. Morin +
(Howell) Arroyo +
Limnanthes pumila +
ternate +  and bipinnate +
lobed +  and entire +
linear +  and ovate-elliptic +
Dwarf meadowfoam +
plate-like +
bell--shaped +
0.42 cm4.2 mm <br />0.0042 m <br /> (0.47 cm4.7 mm <br />0.0047 m <br />) +
cup-shaped +
ridged +, subglobose +  and obovoid +
rugulose +, smooth +  and tuberculate +
Edges of deep vernal pools on lava flows +
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
lobed +, toothed +  and entire +
gray +  and dark-brown +
3 (?) +  and 5 (?) +
tuberculate +
3mm +  and 4.5mm +
syncarpous +  and 2-5-carpellate +
5-lobed +
distinct +
0.5-1.1 times longer than sepals +
0.75 cm7.5 mm <br />0.0075 m <br /> (0.85 cm8.5 mm <br />0.0085 m <br />) +
Flowering Mar–May. +
colporate +, colpate +  and binucleate +
2-4-aperturate +
not arillate +
persistent +
list +  and count +
lanceolate;lanceolate-ovate +
not accrescent +
0.75 cm7.5 mm <br />0.0075 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Illustrated +  and Endemic +
10 +  and 8 +
erect +  and ascending or decumbent +
0.3 cm3 mm <br />0.003 m <br /> (?) +  and 0.35 cm3.5 mm <br />0.0035 m <br /> (?) +
Limnanthes floccosa var. pumila +
Limnanthes floccosa subsp. pumila +
Limnanthes floccosa +
subspecies +
straw-colored +
broad-based +
pink +, lilac +, white +, drying +, dark yellow +  and purplish +
usually longer +
pubescent +  and glabrous +