Erythranthe laciniata |
Erythranthe linearifolia |
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cut-leaf monkeyflower |
primrose monkeyflower, threadleaf primrose monkeyflower |
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Habit | Annuals, slender-taprooted or fibrous-rooted. | Perennials, rhizomatous, densely cespitose, forming large patches and turfs 0.3–1 m diam. |
Stems | erect, simple or branched from base, 3–38 cm, glabrous or sparsely hirtellous, finely villosulous-glandular above nodes. |
erect to ascending, simple, 2–10 cm, sparsely hirsute and stipitate-glandular, internodes shortened. |
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. |
basal or near basal, sometimes proximal cauline, subrosulate; petiole 0 mm; blade 1-veined or palmately 3-veined, linear to narrowly oblanceolate, 15–50 × 1.5–5 mm, base long-cuneate, often subclasping, margins entire, dentate-serrate, or distally dentate, apex acute, surfaces glabrous or adaxial sparsely short-pilose, eglandular. |
Flowers | plesiogamous, 2–8, from medial to distal nodes, chasmogamous, sometimes cleistogamous. |
herkogamous, 1. |
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, red-spotted or -striped, bilaterally symmetric, weakly bilabiate, loosely hirsute on abaxial side of opening; tube-throat narrowly campanulate, 18–22 mm, exserted beyond calyx margin; lobes broadly obovate-oblong, apex rounded- or truncate-notched, throat open. |
Fruiting pedicels | nodding 30–140º at calyx base, 5–25 mm. |
(40–)65–85(–120) mm, glabrous or sparsely stipitate-glandular near base. |
Fruiting calyces | red-spotted, cylindric-campanulate, inflated, sagittally compressed, 8–10 mm, glabrate, throat closing, lobes ca. equal size or adaxial slightly longer. |
winged- or plicate-angled, tubular-campanulate, weakly or not inflated, 9–10(–12) mm, glabrous. |
Capsules | included, stipitate, 5–7 mm. |
included, 6–7 mm. |
Anthers | included, glabrous. |
included or slightly exserted, margins ciliate, glabrous. |
2n | = 28. |
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Erythranthe laciniata |
Erythranthe linearifolia |
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Phenology | Flowering Apr–Jul(–Aug). | Flowering Jul–Sep. |
Habitat | Cracks, depressions, and seeps in granite outcrops, ledges, talus and scree, rocky streamsides, rocky slopes, roadsides, intermittent drainages. | Wet banks, Darlingtonia seeps and bogs, seepages in serpentine talus. |
Elevation | 900–2300(–3300) m. (3000–7500(–10800) ft.) | 600–2800 m. (2000–9200 ft.) |
Distribution |
CA
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CA
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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 linearifolia is endemic to serpentine substrates in Shasta, Siskiyou, and Trinity counties; typical E. primuloides occurs in the same area but not on serpentine. Erythranthe linearifolia is distinct from E. primuloides especially in its narrow leaves and cespitose habit. A collection from Tulare County appears to be E. linearifolia (Shevock 10597, CAS), but this appears to be far out of range and the voucher should be reexamined; it probably is better identified as an unusual collection of E. primuloides. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 419. | FNA vol. 17, p. 390. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus laciniatus, M. eisenii | Mimulus primuloides var. linearifolius, M. linearifolius, M. primuloides subsp. linearifolius |
Name authority | (A. Gray) G. L. Nesom: Phytoneuron 2012-39: 44. (2012) | (A. L. Grant) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 35. (2012) |
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