Erythranthe geyeri

(Torrey) G. L. Nesom

Phytoneuron 2012-39: 43. 2012.

Common names: Geyer’s monkeyflower mimule de James
Basionym: Mimulus geyeri Torrey in J. N. Nicollet Rep. Ill. Map Hydrogr. Basin Upper Mississippi, 157. 1843
Synonyms: M. glabratus var. fremontii (Bentham) A. L. Grant M. glabratus var. jamesii (Torrey & A. Gray ex Bentham) A. Gray M. glabratus var. oklahomensis Fassett M. jamesii Torrey & A. Gray ex Bentham M. jamesii var. fremontii Bentham
Treatment appears in FNA Volume 17. Treatment on page 406. Mentioned on page 374, 407, 408.

Perennials, rhizomatous, rooting at nodes. Stems decumbent-ascending to ascending or erect-ascending, branched, (3–) 10–40 cm, glabrous. Leaves cauline, basal not persistent; petiole 3–10 (–20) mm or 0 mm distally; blade palmately 3–5-veined, suborbicular to depressed-ovate or broadly elliptic-ovate to reniform, 6–25 mm, relatively even-sized or largest often at mid-stem, bracteal reduced, base cuneate to truncate or subcordate, margins shallowly dentate to crenate-dentate, teeth 3–7 (–10) per side, apex rounded, adaxial surface of distals sparsely short villous-glandular or glabrous. Flowers plesiogamous, 2–8 (–12), from distal nodes, sometimes from most nodes, very loosely racemose. Fruiting pedicels 18–30 mm, sparsely short villous-glandular or glabrous. Fruiting calyces obtriangular to broadly obtriangular or deeply cupulate, inflated, sagittally compressed, (7–) 8–12 mm, sparsely short villous-glandular or glabrous, throat not closing, lateral lobes shallowly convex-mucronulate, adaxial ovate with apex rounded. Corollas yellow, sparsely red-dotted or not, bilaterally symmetric, weakly bilabiate; tube-throat cylindric-funnelform, 6–8 mm, exserted 1–3 mm beyond calyx margin; limb expanded 5–8 mm. Styles glabrous. Anthers included, glabrous. Capsules included, (4.5–) 5–8 mm. 2n = 30.


Phenology: Flowering May–Aug(–Oct).
Habitat: Edges of flowing streams, marsh edges, drainage ditches, seepage areas, springs, muddy or moist banks.
Elevation: 200–2500 m.

Distribution

Alta., Man., Ont., Que., Sask., Ariz., Colo., Ill., Iowa, Kans., Mich., Minn., Mo., Nebr., N.Mex., Okla., Pa., S.Dak., Tex., Wis., Wyo., Mexico (Chihuahua), Mexico (Coahuila), Mexico (Distrito Federal), Mexico (Durango), Mexico (Hidalgo), Mexico (Nuevo León), Mexico (México), Mexico (Querétaro), Mexico (San Luis Potosí), Mexico (Sonora), Mexico (Veracruz), Mexico (Zacatecas)

Discussion

Erythranthe geyeri has commonly been regarded as conspecific with E. glabrata (Kunth) G. L. Nesom (as Mimulus glabratus var. jamesii), but typical E. glabrata has a different chromosome number and distinct morphology and its range does not reach the United States. In Mexico, the two species are broadly sympatric without intermediates. An allozyme study of the M. glabratus complex (R. K. Vickery 1990) indicated that the Great Plains populations of E. geyeri are distinct from those in New Mexico and Mexico, corresponding to a difference in pedicel vestiture.

Selected References

None.

Lower Taxa

None.
... more about "Erythranthe geyeri"
glabrous;villous-glandular;short +
loculicidal +
Guy L. Nesom +  and Naomi S. Fraga +
(Torrey) G. L. Nesom +
rosulate +  and subrosulate +
not persistent +
cuneate;truncate or subcordate +
Mimulus geyeri +
suborbicular;depressed-ovate or broadly elliptic-ovate +
reduced +, largest +  and equal-sized +
0.6 cm6 mm <br />0.006 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
? (?) +  and ? (?) +
compressed +, inflated +  and tubular +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Geyer’s monkeyflower +  and mimule de James +
not;red-dotted;yellow +
Alta. +, Man. +, Ont. +, Que. +, Sask. +, Ariz. +, Colo. +, Ill. +, Iowa +, Kans. +, Mich. +, Minn. +, Mo. +, Nebr. +, N.Mex. +, Okla. +, Pa. +, S.Dak. +, Tex. +, Wis. +, Wyo. +, Mexico (Chihuahua) +, Mexico (Coahuila) +, Mexico (Distrito Federal) +, Mexico (Durango) +, Mexico (Hidalgo) +, Mexico (Nuevo León) +, Mexico (México) +, Mexico (Querétaro) +, Mexico (San Luis Potosí) +, Mexico (Sonora) +, Mexico (Veracruz) +  and Mexico (Zacatecas) +
200–2500 m. +
hairy +  and glabrous +
nodding;spreading;nodding;spreading;erect +
glabrous +, villous-glandular +  and short +
1.8 cm18 mm <br />0.018 m <br /> (3 cm30 mm <br />0.03 m <br />) +
reduced +
Edges of flowing streams, marsh edges, drainage ditches, seepage areas, springs, muddy or moist banks. +
alternate +, opposite +, rosulate +  and subrosulate +
persistent +  and deciduous +
expanded +
? (?) +  and ? (?) +
mostly triangular;deltate +
reduced +  and longer +
subentire +  and toothed +
dentate to crenate-dentate +
basal +  and superior +
tenuinucellate +  and unitegmic +
orthotropous +  and anatropous +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0 cm0 mm <br />0 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Flowering May–Aug(–Oct). +
Phytoneuron +
flattened +  and ellipsoid +
3 +  and 5 +
proximal +  and middle +
decumbent-ascending;ascending or erect-ascending +
4-angled +  and terete +
10 cm100 mm <br />0.1 m <br /> (40 cm400 mm <br />0.4 m <br />) +
M. glabratus var. fremontii +, M. glabratus var. jamesii +, M. glabratus var. oklahomensis +, M. jamesii +  and M. jamesii var. fremontii +
Erythranthe geyeri +
Erythranthe +
species +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
not closing +
rooting +  and rhizomatous +
0.7 cm7 mm <br />0.007 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
glabrous +, villous-glandular +  and short +
compressed +, inflated +, obtriangular +  and broadly obtriangular or deeply cupulate +
0.8 cm8 mm <br />0.008 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 +