Erythranthe bicolor

(Hartweg ex Bentham) G. L. Nesom & N. S. Fraga

Phytoneuron 2012-39: 36. 2012.

Common names: Yellow and white monkeyflower
Endemic
Basionym: Mimulus bicolor Hartweg ex Bentham Pl. Hartw., 328. 1849
Treatment appears in FNA Volume 17. Treatment on page 390. Mentioned on page 379, 391.

Annuals, taprooted. Stems erect, simple or branched from basal nodes, 4–30 cm, densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped. Leaves cauline, basal not persistent; petiole 0 mm or short-attenuate; blade 1-veined or palmately 3-veined (in broader ones), narrowly elliptic to linear-lanceolate or linear-oblanceolate, 10–30 × 2–6 mm at mid-stem, base attenuate, margins entire or remotely shallowly dentate to mucronulate, teeth 1–4 per side, apex acute, surfaces densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped. Flowers herkogamous, 2–8, from medial to distal nodes. Fruiting pedicels (5–) 7–20 (–30) mm, densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped. Fruiting calyces red-dotted, strongly angled, cylindric-campanulate, (5–) 7–12 mm, margins distinctly toothed or lobed, densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped, ribs corky, lobes pronounced, spreading. Corollas yellow, adaxial lip white, sometimes yellow, throat and abaxial limb red-spotted, bilaterally symmetric, weakly bilabiate; tube-throat funnelform, 8–12 mm, exserted beyond calyx margin; limb broadly expanded, lobes 2-fid, palate villous. Styles minutely glandular. Anthers included, margins ciliate, glabrous. Capsules included, 4–6 mm.


Phenology: Flowering Apr–Jun.
Habitat: Moist banks, serpentine and granite outcrops, seepage areas, volcanic mudflows, open red clay exposures.
Elevation: (100–)400–1700(–2500) m.

Discussion

Erythranthe bicolor ranges from Shasta and Trinity counties south to Tulare County; the identity of apparently disjunct populations in San Bernardino County needs to be reexamined.

Selected References

None.

Lower Taxa

None.
... more about "Erythranthe bicolor"
yellow +  and white +
loculicidal +
Guy L. Nesom +  and Naomi S. Fraga +
(Hartweg ex Bentham) G. L. Nesom & N. S. Fraga +
rosulate +  and subrosulate +
not persistent +
attenuate +
Mimulus bicolor +
3-veined +  and 1-veined +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
narrowly elliptic;linear-lanceolate or linear-oblanceolate +
not leathery +  and semifleshy +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
compressed +, inflated +  and tubular +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Yellow and white monkeyflower +
regular +  and bilabiate +
compressed +
(100–)400–1700(–2500) m. +
hairy +  and glabrous +
nodding;spreading;nodding;spreading;erect +
reduced +
Moist banks, serpentine and granite outcrops, seepage areas, volcanic mudflows, open red clay exposures. +
gland-tipped +
0.005 cm0.05 mm <br />5.0e-5 m <br /> (0.01 cm0.1 mm <br />1.0e-4 m <br />) +
alternate +, opposite +, rosulate +  and subrosulate +
persistent +  and deciduous +
expanded +
pronounced +
3 (?) +  and Not 5 (?) +
reduced +  and longer +
remotely shallowly dentate to mucronulate +  and entire +
glabrous +  and glandular-puberulent +
lobed +  and toothed +
basal +  and superior +
tenuinucellate +  and unitegmic +
orthotropous +  and anatropous +
short-attenuate +
0 cm0 mm <br />0 m <br /> (?) +
Flowering Apr–Jun. +
Phytoneuron +
flattened +  and ellipsoid +
3 +  and 5 +
proximal +  and middle +
branched +  and simple +
glandular-puberulent +
4-angled +  and terete +
4 cm40 mm <br />0.04 m <br /> (30 cm300 mm <br />0.3 m <br />) +
glandular-puberulent +
Mimulus sect. Erythranthe +  and Mimulus subg. Synplacus +
Erythranthe bicolor +
Erythranthe +
species +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
red-spotted +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
glandular-puberulent +
cylindric-campanulate +  and angled +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
perennial +  and annual +
herb +  and subshrub +
terrestrial +  and aquatic +
semiaquatic +  and terrestrial +
9 +, 8 +  and 7 +