Diplacus angustatus

(A. Gray) G. L. Nesom

Phytoneuron 2012-39: 30. 2012.

Common names: Narrow-leaved or purple-lip pansy monkeyflower
Endemic
Basionyms: Eunanus coulteri var. angustatus A. Gray Proc. Amer. Acad. Arts 7: 381. 1868
Synonyms: E. angustatus (A. Gray) Greene Mimulus angustatus (A. Gray) A. Gray M. tricolor var. angustatus (A. Gray) A. Gray
Treatment appears in FNA Volume 17. Treatment on page 447. Mentioned on page 429.

Herbs, annual, acaulescent or caulescent. Stems erect, 0 or 20–70 mm, eglandular-puberulent. Leaves: basal densely clustered; petiole absent; blade narrowly lanceolate or elliptic to linear, (3.5–) 5–36 × 0.5–3.8 (–5) mm, margins entire, plane, proximal 1/2+ ciliate, apex obtuse, surfaces glabrous. Pedicels 0–1 mm in fruit. Flowers 1 per node, chasmogamous. Calyces slightly asymmetrically attached to pedicel, inflated in fruit, (4–) 7–14 (–17) mm, pilose, lobes subequal, apex obtuse, ribs becoming reddish, intercostal areas pale green to whitish. Corollas: throat and limb magenta to purple with a dark maroon-purple spot or elongate blotch at base of each abaxial lobe, palate ridges and base of abaxial lip yellow, tube-throat 20–60 mm, limb 10–20 mm diam., bilabiate, lobes equal. Anthers (distal pair) sometimes nearly exserted, hirsute with 2 apical tufts. Styles glandular-puberulent. Stigmas usually exserted, lobes subequal. Capsules 2–4.5 mm, indehiscent. 2n = 18.


Phenology: Flowering Mar–May(–Jun).
Habitat: Vernally flooded depressions or swales, summits of mesas or foothills.
Elevation: 300–1200 m.

Discussion

Diplacus angustatus occurs in northern California in the Sierra Nevada and across the Sacramento Valley in the North Coast Range (Lake, Mendocino, and Napa counties); it also is known from one area in northwestern Shasta County and has a disjunct series of populations in Fresno and Tulare counties.

Selected References

None.

Lower Taxa

None.

... more about "Diplacus angustatus"
Guy L. Nesom +  and Melissa C. Tulig +
(A. Gray) G. L. Nesom +
Eunanus coulteri var. angustatus +
elliptic to linear +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.38 cm3.8 mm <br />0.0038 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (3.6 cm36 mm <br />0.036 m <br />) +
lanceolate +
not +, leathery +  and not fleshy +
0.5mm;3.8mm +
dark maroon-purple spot +
elongate +
1.4 cm14 mm <br />0.014 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
inflated +
0.7 cm7 mm <br />0.007 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
Narrow-leaved or purple-lip pansy monkeyflower +
not +, rarely radially symmetric +  and weakly strongly bilabiate +
white;yellow;orange;yellow;orange;purplish brown;purple;lavender;magenta;red;pink;blue +
300–1200 m. +
hairy +  and glabrous +
reflexed;nodding;erect +
reduced +
compressed;asymmetrically ovoid;lanceoloid or nearly cylindric +
Vernally flooded depressions or swales, summits of mesas or foothills. +
gland-tipped +
pale green +  and whitish +
alternate +, opposite +, rosulate +  and subrosulate +
persistent +  and deciduous +
cauline +  and basal +
magenta +  and purple +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
triangular;deltate +
subequal +
palmate +  and subpinnate +
wing-angled +  and angled +
basal +  and superior +
tenuinucellate +  and unitegmic +
orthotropous +  and anatropous +
rarely more or less equal to or slightly longer +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Flowering Mar–May(–Jun). +
Phytoneuron +
flattened +, ovoid +  and oblong +
deciduous +
glandular-puberulent +
E. angustatus +, Mimulus angustatus +  and M. tricolor var. angustatus +
Diplacus angustatus +
Diplacus +
species +
2 cm20 mm <br />0.02 m <br /> (6 cm60 mm <br />0.06 m <br />) +
magenta +  and purple +
caulescent +  and acaulescent +
10 +, 9 +  and 8 +