Erythranthe geyeri |
Erythranthe montioides |
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Geyer's monkeyflower, mimule de James |
montia-like monkeyflower, mountain monkeyflower |
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Habit | Perennials, rhizomatous, rooting at nodes. | Annuals, taprooted. |
Stems | decumbent-ascending to ascending or erect-ascending, branched, (3–)10–40 cm, glabrous. |
erect, simple or branched from basal nodes, 2–15 cm, glabrous or minutely puberulent, internodes elongate, distinct. |
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. |
cauline, basal not persistent; petiole 0 mm; blade 1-veined or palmately 3-veined (in broader ones), linear to lanceolate, (3–)4–25 × 0.5–2 mm, base attenuate, margins entire, apex acute, surfaces glabrous or minutely puberulent. |
Flowers | plesiogamous, 2–8(–12), from distal nodes, sometimes from most nodes, very loosely racemose. |
herkogamous, 1–6, from medial to distal nodes. |
Styles | glabrous. |
glabrous. |
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. |
yellow, abaxial limb red-spotted, bilaterally symmetric, strongly bilabiate; tube-throat cylindric to funnelform, 6–10 mm, exserted beyond calyx margin; limb expanded 5–12 mm, lateral lobes entire or shallowly notched, palate glabrous or sparsely bearded. |
Fruiting pedicels | 18–30 mm, sparsely short villous-glandular or glabrous. |
(4–)5–20 mm. |
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. |
becoming straw colored, campanulate, 5–7 mm, margins distinctly toothed or lobed, ciliate, glabrous or minutely puberulent, ribs weak, lobes pronounced, erect. |
Capsules | included, (4.5–)5–8 mm. |
included, 5–6 mm. |
Anthers | included, glabrous. |
included, glabrous. |
2n | = 30. |
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Erythranthe geyeri |
Erythranthe montioides |
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Phenology | Flowering May–Aug(–Oct). | Flowering Jun–Aug. |
Habitat | Edges of flowing streams, marsh edges, drainage ditches, seepage areas, springs, muddy or moist banks. | Sandy opening in mixed coniferous and lodgepole forests. |
Elevation | 200–2500 m. (700–8200 ft.) | 1900–2900 m. (6200–9500 ft.) |
Distribution |
AZ; CO; IA; IL; KS; MI; MN; MO; NE; NM; OK; PA; SD; TX; WI; WY; AB; MB; ON; QC; SK; Mexico (Chihuahua, Coahuila, Distrito Federal, Durango, Hidalgo, Nuevo León, México, Querétaro, San Luis Potosí, Sonora, Veracruz, Zacatecas)
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CA
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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. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Erythranthe montioides has been previously treated as a highly polymorphic species with a relatively broad geographic range but is now recognized as narrowly endemic to Fresno and north-central Tulare counties. The following species were segregated from E. montioides: E. barbata, E. calcicola, E. carsonensis, and E. discolor. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 406. | FNA vol. 17, p. 385. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus geyeri, M. glabratus var. fremontii, M. glabratus var. jamesii, M. glabratus var. oklahomensis, M. jamesii, M. jamesii var. fremontii | Mimulus montioides |
Name authority | (Torrey) G. L. Nesom: Phytoneuron 2012-39: 43. (2012) | (A. Gray) N. S. Fraga: Phytoneuron 2012-39: 35. (2012) |
Web links |
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