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cut-leaf monkeyflower

Geyer's monkeyflower, mimule de James

Habit Annuals, slender-taprooted or fibrous-rooted. Perennials, rhizomatous, rooting at nodes.
Stems

erect, simple or branched from base, 3–38 cm, glabrous or sparsely hirtellous, finely villosulous-glandular above nodes.

decumbent-ascending to ascending or erect-ascending, branched, (3–)10–40 cm, glabrous.

Leaves

cauline, basal deciduous by flowering;

petiole 1–35 mm, distals 0 mm;

blade 1-veined or palmately 3-veined, elliptic to elliptic-obovate, oblanceolate, or oblong, 3–55 mm, longer than wide, base attenuate, margins narrowly pinnately lobed or dissected, sometimes merely shallowly toothed, apex acute to obtuse, surfaces glabrate.

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, from medial to distal nodes, chasmogamous, sometimes cleistogamous.

plesiogamous, 2–8(–12), from distal nodes, sometimes from most nodes, very loosely racemose.

Styles

glabrous.

glabrous.

Corollas

yellow, throat red-spotted, abaxial limb of larger usually with 1 large red splotch, bilaterally symmetric, ± bilabiate;

tube-throat funnelform, 4–6 mm, exserted 1–2 mm beyond calyx margin;

limb expanded 5–6 mm.

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.

Fruiting pedicels

nodding 30–140º at calyx base, 5–25 mm.

18–30 mm, sparsely short villous-glandular or glabrous.

Fruiting calyces

red-spotted, cylindric-campanulate, inflated, sagittally compressed, 8–10 mm, glabrate, throat closing, lobes ca. equal size or adaxial slightly longer.

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.

Capsules

included, stipitate, 5–7 mm.

included, (4.5–)5–8 mm.

Anthers

included, glabrous.

included, glabrous.

2n

= 28.

= 30.

Erythranthe laciniata

Erythranthe geyeri

Phenology Flowering Apr–Jul(–Aug). Flowering May–Aug(–Oct).
Habitat Cracks, depressions, and seeps in granite outcrops, ledges, talus and scree, rocky streamsides, rocky slopes, roadsides, intermittent drainages. Edges of flowing streams, marsh edges, drainage ditches, seepage areas, springs, muddy or moist banks.
Elevation 900–2300(–3300) m. (3000–7500(–10800) ft.) 200–2500 m. (700–8200 ft.)
Distribution
from FNA
CA
[WildflowerSearch map]
from FNA
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)
[WildflowerSearch map]
Discussion

Erythranthe laciniata is known from Amador County south to Kern County.

As in Erythranthe nasuta, the adaxial calyx lobe in E. laciniata tends to be narrowly lanceolate to triangular (noselike) and perceptibly falcate, curving slightly upward both in flower and in fruit. The adaxial lobe is not so prominently protruding as it often is in E. nasuta.

Corolla size is variable in Erythranthe laciniata, but the size of those with an open throat (versus much reduced in size and apparently cleistogamous) is not strongly correlated with size of the individual plant, and all on one plant are about the same size (compare with E. nasuta). Corollas on some plants, however, are all or nearly all greatly reduced and apparently cleistogamous. Fertilization in even the larger corollas apparently is autogamous; the anther pairs are slightly separated or equal in level, and the stigma is in the middle of the anthers or at the level of the adaxial pair.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

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.)

Source FNA vol. 17, p. 419. FNA vol. 17, p. 406.
Parent taxa Phrymaceae > Erythranthe Phrymaceae > Erythranthe
Sibling taxa
E. acutidens, E. alsinoides, E. ampliata, E. androsacea, E. arenaria, E. arenicola, E. arvensis, E. barbata, E. bicolor, E. brachystylis, E. breviflora, E. breweri, E. caespitosa, E. calcicola, E. calciphila, E. cardinalis, E. carsonensis, E. charlestonensis, E. chinatiensis, E. cinnabarina, E. corallina, E. cordata, E. decora, E. dentata, E. diffusa, E. discolor, E. eastwoodiae, E. erubescens, E. exigua, E. filicaulis, E. filicifolia, E. floribunda, E. gemmipara, E. geniculata, E. geyeri, E. glaucescens, E. gracilipes, E. grandis, E. grayi, E. guttata, E. hallii, E. hardhamiae, E. hymenophylla, E. inamoena, E. inconspicua, E. inflatula, E. jungermannioides, E. latidens, E. lewisii, E. linearifolia, E. marmorata, E. michiganensis, E. microphylla, E. minor, E. montioides, E. moschata, E. nasuta, E. norrisii, E. nudata, E. palmeri, E. pardalis, E. parishii, E. parvula, E. patula, E. percaulis, E. primuloides, E. ptilota, E. pulsiferae, E. purpurea, E. regni, E. rhodopetra, E. rubella, E. scouleri, E. shevockii, E. sierrae, E. suksdorfii, E. taylorii, E. thermalis, E. tilingii, E. trinitiensis, E. unimaculata, E. utahensis, E. verbenacea, E. washingtonensis, E. willisii
E. acutidens, E. alsinoides, E. ampliata, E. androsacea, E. arenaria, E. arenicola, E. arvensis, E. barbata, E. bicolor, E. brachystylis, E. breviflora, E. breweri, E. caespitosa, E. calcicola, E. calciphila, E. cardinalis, E. carsonensis, E. charlestonensis, E. chinatiensis, E. cinnabarina, E. corallina, E. cordata, E. decora, E. dentata, E. diffusa, E. discolor, E. eastwoodiae, E. erubescens, E. exigua, E. filicaulis, E. filicifolia, E. floribunda, E. gemmipara, E. geniculata, E. glaucescens, E. gracilipes, E. grandis, E. grayi, E. guttata, E. hallii, E. hardhamiae, E. hymenophylla, E. inamoena, E. inconspicua, E. inflatula, E. jungermannioides, E. laciniata, E. latidens, E. lewisii, E. linearifolia, E. marmorata, E. michiganensis, E. microphylla, E. minor, E. montioides, E. moschata, E. nasuta, E. norrisii, E. nudata, E. palmeri, E. pardalis, E. parishii, E. parvula, E. patula, E. percaulis, E. primuloides, E. ptilota, E. pulsiferae, E. purpurea, E. regni, E. rhodopetra, E. rubella, E. scouleri, E. shevockii, E. sierrae, E. suksdorfii, E. taylorii, E. thermalis, E. tilingii, E. trinitiensis, E. unimaculata, E. utahensis, E. verbenacea, E. washingtonensis, E. willisii
Synonyms Mimulus laciniatus, M. eisenii Mimulus geyeri, M. glabratus var. fremontii, M. glabratus var. jamesii, M. glabratus var. oklahomensis, M. jamesii, M. jamesii var. fremontii
Name authority (A. Gray) G. L. Nesom: Phytoneuron 2012-39: 44. (2012) (Torrey) G. L. Nesom: Phytoneuron 2012-39: 43. (2012)
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