Flora of North America species comparison

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Erythranthe geyeri

Erythranthe chinatiensis

Geyer's monkeyflower, mimule de James

Chinati Mountains monkeyflower
Habit Perennials, rhizomatous, rooting at nodes. Perennials, rhizomatous, sometimes rooting at nodes, mat-forming.
Stems

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

procumbent, branched, 5–20 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.

cauline;

petiole 2–10(–20) mm;

blade palmately 3–5(–7)-veined, ovate to broadly ovate or orbicular-ovate, 4–15(–22) × 4–15(–18) mm, base truncate to cuneate, margins shallowly denticulate or merely mucronate to mucronulate, teeth 3–6 per side, apex acute to obtuse, surfaces glabrous, adaxial sometimes moderately villosulous, hairs vitreous, flattened, eglandular or minutely gland-tipped.
Flowers

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

plesiogamous, 2–8, axillary at 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, red-dotted, bilaterally symmetric, bilabiate;

tube-throat funnelform, 7–8 mm, exserted beyond calyx margin;

limb expanded 6–7 mm, abaxial limb strongly reflexed, lobes fimbriate.
Fruiting pedicels

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

10–20 mm, 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.

nodding 45–90º, 5-lobed, ellipsoid, inflated, sagittally compressed, 5–6 mm, glabrous or sparsely villosulous-glandular, throat closing.
Capsules

included, (4.5–)5–8 mm.

included, 4–5 mm.
Anthers

included, glabrous.

included, glabrous.
2n

= 30.

Erythranthe geyeri

Erythranthe chinatiensis
Phenology Flowering May–Aug(–Oct). Flowering Feb–Sep.
Habitat Edges of flowing streams, marsh edges, drainage ditches, seepage areas, springs, muddy or moist banks. Seeps in vertical cliff faces, wet bluffs.
Elevation 200–2500 m. (700–8200 ft.) 600–1900(–2300) m. (2000–6200(–7500) ft.)
Distribution
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]
from FNA
TX
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 chinatiensis is similar to E. parvula in its prostrate habit, five-lobed calyces, and fimbriate corolla lobes. It differs from the latter in its nearly glabrous leaves and strongly reflexed abaxial corolla lip. Erythranthe chinatiensis is known only from Presidio County but should be expected to occur also in adjacent Chihuahua, Mexico.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 406. FNA vol. 17, p. 424.
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. 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
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. 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. 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 (Torrey) G. L. Nesom: Phytoneuron 2012-39: 43. (2012) G. L. Nesom: Phytoneuron 2012-40: 86, figs. 12–14. (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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