Erythranthe acutidens

(Greene) G. L. Nesom

Phytoneuron 2012-39: 34. 2012.

IllustratedEndemicConservation concern
Basionym: Mimulus acutidens Greene Bull. Calif. Acad. Sci. 1: 117. 1885
Synonyms: M. inconspicuus var. acutidens (Greene) A. Gray
Treatment appears in FNA Volume 17. Treatment on page 383. Mentioned on page 379, 382.

Annuals, fibrous-rooted. Stems erect to ascending-erect, simple or diffusely branched, 4-angled, 7–20 cm, glabrous. Leaves basal and cauline; petiole 0 mm; blade palmately 3–5 veined, ovate to broadly ovate, 10–20 × 7–11 mm, base rounded to truncate, margins serrate-denticulate, apex acute, surfaces glabrous. Flowers herkogamous, 2–20, from proximal to distal nodes. Fruiting pedicels divergent-arcuate, sometimes becoming deflexed, 10–23 mm, longer than subtending leaves, glabrous. Fruiting calyces campanulate, 7–9 mm, margins subtruncate, glabrous, lobes reduced, subequal. Corollas pale-pink to rose-purple, throat yellow or deep pink externally with 2 yellow spots below abaxial limb, bilaterally symmetric, weakly bilabiate; tube-throat cylindric-funnelform, 9–12 mm, exserted beyond calyx margin; limb expanded 9–12 mm. Styles glabrous. Anthers included, minutely villous-hirsute. Capsules included, (4–) 5–10 mm.


Phenology: Flowering Apr–Jul.
Habitat: Grassy slopes, sandy terraces, marshy places, lakeshores, creek sides, seep edges, shaded canyon slopes, roadcuts and roadsides, woodlands of Pseudotsuga menziesii-Quercus chrysolepis, oak-gray pine, or interior live oak.
Elevation: 200–2000 m.

Discussion

Mimulus acutidens Greene is heterotypic with the South American M. acutidens Reiche, which is a later homonym.

Selected References

None.

Lower Taxa

None.
... more about "Erythranthe acutidens"
villous-hirsute +
loculicidal +
Guy L. Nesom +  and Naomi S. Fraga +
(Greene) G. L. Nesom +
rosulate +  and subrosulate +
not persistent +
rounded;truncate +
Mimulus acutidens +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
ovate;broadly ovate +
? (?) +  and ? (?) +
7mm;11mm +
compressed +, inflated +  and tubular +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
regular +  and bilabiate +
pale-pink;rose-purple +
200–2000 m. +
hairy +  and glabrous +
nodding;spreading;nodding;spreading;erect +
reduced +
Grassy slopes, sandy terraces, marshy places, lakeshores, creek sides, seep edges, shaded canyon slopes, roadcuts and roadsides, woodlands of Pseudotsuga menziesii-Quercus chrysolepis, oak-gray pine, or interior live oak. +
alternate +, opposite +, rosulate +  and subrosulate +
persistent +  and deciduous +
cauline +  and basal +
expanded +
? (?) +  and ? (?) +
mostly triangular;deltate +
subequal +  and reduced +
serrate-denticulate +
basal +  and superior +
tenuinucellate +  and unitegmic +
orthotropous +  and anatropous +
0 cm0 mm <br />0 m <br /> (?) +
Flowering Apr–Jul. +
Phytoneuron +
flattened +  and ellipsoid +
3 +  and 5 +
Illustrated +, Endemic +  and Conservation concern +
proximal +  and middle +
branched +  and simple +
erect;ascending-erect +
4-angled +
7 cm70 mm <br />0.07 m <br /> (20 cm200 mm <br />0.2 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2.3 cm23 mm <br />0.023 m <br />) +
M. inconspicuus var. acutidens +
Erythranthe acutidens +
Erythranthe +
species +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
yellow spots +, pink +, deep +  and yellow +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
perennial +  and annual +
herb +  and subshrub +
terrestrial +  and aquatic +
semiaquatic +  and terrestrial +
9 +, 8 +  and 7 +