Flora of North America species comparison

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Erythranthe taylorii

Erythranthe geyeri

Shasta limestone monkeyflower, Taylor's or Shasta limestone monkeyflower

Geyer's monkeyflower, mimule de James
Habit Annuals, filiform-taprooted. Perennials, rhizomatous, rooting at nodes.
Stems

erect, straight at nodes, simple or few-branched from base, 5–10 cm, sparsely eglandular-villous proximally, becoming sparsely short stipitate-glandular distally.

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

usually cauline, basal not persistent, largest at mid stem or basal and mid stem to nearly even-sized;

petiole 3–5(–8) mm;

blade often purple adaxially, palmately 3–5-veined, broadly ovate to elliptic-ovate or ovate-lanceolate, 4–20 × 4–12 mm, base rounded to truncate, margins serrate-dentate, teeth 2–4 per side, shallow, apex rounded to obtuse or acute, surfaces: distals moderately short-stipitate-glandular.

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

herkogamous, sometimes plesiogamous, 2–6(–8), from proximal to distal nodes.

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

glabrous.

glabrous.
Corollas

yellow, throat ceiling sometimes red-spotted or -lined, abaxial limb yellow or with 1 or 2 red splotches, bilaterally symmetric, bilabiate;

tube-throat funnelform, 5–7 mm, exserted beyond calyx margin.

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

divergent to arcuate-divergent, 6–13 mm.

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

wing-angled, tubular-campanulate, 4–5 mm, margins distinctly toothed or lobed, densely invested with tiny, waxy-white, eglandular, papillose hairs between angles, lobes pronounced, erect.

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, 3–4 mm.

included, (4.5–)5–8 mm.
Anthers

included, glabrous.

included, glabrous.
2n

= 30.

Erythranthe taylorii

Erythranthe geyeri
Phenology Flowering Feb–May. Flowering May–Aug(–Oct).
Habitat Crevices in limestone cliff faces and outcrops. Edges of flowing streams, marsh edges, drainage ditches, seepage areas, springs, muddy or moist banks.
Elevation 900–1100 m. (3000–3600 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 taylorii is known only from the Shasta Lake region of northwestern Shasta County. Its broad, distinctly bilabiate corollas and ovate leaf blades with palmate venation are similar to those of species of the northern group of sect. Mimulosma, the "Columbia River clade" (J. B. Whittall et al. 2006) of Idaho, Montana, Oregon, Washington, and Wyoming, particularly to the Idaho endemic E. ampliata. Erythranthe taylorii is distinct from E. ampliata in its larger, papillose calyces, shorter fruiting pedicels, corollas with shorter tube-throats, and shorter capsules. Considerable corolla color variation exists in E. taylorii in the occurrence and density of red dots and lines on the throat ceiling and larger red splotches on the abaxial limb.

(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. 398. 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. 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. 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 geyeri, M. glabratus var. fremontii, M. glabratus var. jamesii, M. glabratus var. oklahomensis, M. jamesii, M. jamesii var. fremontii
Name authority G. L. Nesom: Phytoneuron 2013-43: 6, figs. 5–7. (2013) — (as taylori) (Torrey) G. L. Nesom: Phytoneuron 2012-39: 43. (2012)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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