Erythranthe taylorii |
Erythranthe discolor |
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Shasta limestone monkeyflower, Taylor's or Shasta limestone monkeyflower |
party-color monkeyflower, two-color monkeyflower |
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Habit | Annuals, filiform-taprooted. | Annuals, taprooted. |
Stems | erect, straight at nodes, simple or few-branched from base, 5–10 cm, sparsely eglandular-villous proximally, becoming sparsely short stipitate-glandular distally. |
erect, simple or branched from basal nodes, 5–12 cm, sparsely glandular-pubescent, internodes elongate, distinct. |
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 0–2 mm; blade 1-veined or palmately 3-veined (in broader ones), linear to lanceolate or ovate, 5–15 × 1–4 mm, base attenuate, margins entire, apex acute, surfaces sparsely glandular-pubescent. |
Flowers | herkogamous, sometimes plesiogamous, 2–6(–8), from proximal to distal nodes. |
herkogamous, 1–8, from distal or medial to distal nodes. |
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 and tube-throat adaxial surface red-tinged, abaxial limb red-spotted or deep pink to purple and abaxial limb with 2 yellow ridges, bilaterally symmetric, strongly bilabiate; tube-throat funnelform, 9–13 mm, exserted beyond calyx margin; limb expanded 7–15 mm, lobes notched, adaxial limb glabrous or sparsely bearded. |
Fruiting pedicels | divergent to arcuate-divergent, 6–13 mm. |
erect to ascending, 6–11(–32) mm. |
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. |
sometimes red-dotted on ribs, campanulate, 4–8 mm, margins distinctly toothed or lobed, sparsely glandular-pubescent, ribs weak, lobes pronounced, erect, margins glabrous. |
Capsules | included, 3–4 mm. |
included, 5–8 mm. |
Anthers | included, glabrous. |
included, glabrous. |
Erythranthe taylorii |
Erythranthe discolor |
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Phenology | Flowering Feb–May. | Flowering May–Jun. |
Habitat | Crevices in limestone cliff faces and outcrops. | Moist open areas on gentle slopes in desert chaparral and pine transition areas. |
Elevation | 900–1100 m. (3000–3600 ft.) | 1400–2700 m. (4600–8900 ft.) |
Distribution |
CA
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CA
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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 discolor has two distinctive floral morphs; one is yellow with red spots on the palate, the other is pink with two yellow ridges on the palate. Populations can be monomorphic (usually yellow) or mixed, with the yellow morph most often in higher frequency. Erythranthe discolor was placed previously in synonymy with E. montioides, and the pink form of E. discolor has commonly been confused with E. palmeri. Erythranthe discolor is known to hybridize with E. barbata and is restricted to Kern and Tulare counties in the southern Sierra Nevada. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 398. | FNA vol. 17, p. 386. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus discolor | |
Name authority | G. L. Nesom: Phytoneuron 2013-43: 6, figs. 5–7. (2013) — (as taylori) | (A. L. Grant) N. S. Fraga: Phytoneuron 2012-39: 35. (2012) |
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