Diplacus deschutesensis |
Diplacus pictus |
|
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Deschutes monkeyflower |
calico monkeyflower |
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Habit | Herbs, annual. | Herbs, annual. |
Stems | erect to erect-ascending, 40–150 mm, distal internodes 1–2 mm, minutely glandular-puberulent. |
erect to ascending, 20–380 mm, 4-sided, glandular-pubescent. |
Leaves | usually cauline, relatively even-sized or gradually larger distally; petiole absent, proximal base short petiole-like; blade broadly ovate or obovate to elliptic-ovate or elliptic-oblanceolate, 10–15(–25) × 4–13 mm, margins entire, plane, apex acuminate or cuspidate, surfaces glabrous or sparsely glandular-puberulent. |
basal and cauline, relatively even-sized; petiole absent; blade elliptic to elliptic-ovate or obovate, 7–45(–57) × 3–20(–32) mm, margins crenate, plane, apex obtuse to rounded, surfaces glandular-pubescent. |
Pedicels | 1–1.5 mm in fruit. |
1.5–6(–7) mm in fruit. |
Flowers | usually from proximalmost to distal nodes, 2 per node, or 1 or 2 per node on 1 plant, chasmogamous. |
2 per node, or 1 or 2 per node on 1 plant, chasmogamous, sometimes cleistogamous. |
Styles | puberulent, at least on distal 1/2. |
glandular-puberulent. |
Corollas | light pink to magenta or rose purple, usually with a darker narrow line extending from throat onto each lobe midvein, throat yellow, palate ridges yellow, tube-throat 8–12 mm, limb 10–16 mm diam., bilabiate. |
salverform-rotate, throat dark purplish brown without internal or external markings, lobes white with bold, purplish brown veins, palate ridges absent, tube-throat 6.5–18 mm, limb 4–16 mm diam., not bilabiate. |
Calyces | symmetrically attached to pedicels, not inflated in fruit, 7–8 mm, glandular-puberulent, lobes subequal, apex linear-acuminate, ribs green distally, intercostal areas whitish. |
asymmetrically attached to pedicel, not inflated in fruit, 6–18 mm, densely glandular-pubescent, lobes unequal, adaxial longest, apex obtuse, ribs green, intercostal areas whitish. |
Capsules | 7–9 mm. |
(5.5–)7–17 mm. |
Anthers | included, glabrous or sparsely hispidulous. |
included, glabrous. |
Stigmas | exserted, lobes subequal, abaxial slightly longer. |
included, lobes unequal, abaxial 6–8 times adaxial. |
2n | = 16. |
= 16. |
Diplacus deschutesensis |
Diplacus pictus |
|
Phenology | Flowering Jun–Aug. | Flowering Mar–May. |
Habitat | Sandy and ashy soils, pumice sand and gravel, red clay slopes, hillsides, roadsides, bare areas, sagebrush, sagebrush-juniper, juniper, yellow pine and lodgepole pine forests. | Rocky granitic slopes, granite rocks and outcrops, sandy granitic soils, blue oak, blue oak-grey pine, Douglas oak, Douglas oak-canyon live oak, and gray pine-Douglas oak woodlands, steep canyon slopes with box elder. |
Elevation | 700–1500 m. (2300–4900 ft.) | 100–1300 m. (300–4300 ft.) |
Distribution |
OR
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CA
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Discussion | Diplacus deschutesensis is endemic to Crook, Deschutes, Jefferson, Klamath, Lake, and Wheeler counties of central Oregon. D. M. Thompson (2005) regarded these plants as a zone of stabilized hybrids, intermediate between Mimulus cusickii and typical M. nanus, the range just outside and west of the wider range of typical M. cusickii. In an earlier study that included both of the latter species, W. L. Ezell (1971, and by annotation in 1987) identified the same set of plants simply as M. cusickii, not associating them at all with M. nanus. A. L. Grant (1924, and by annotation of MO collections) identified them variously as either M. cusickii or M. ovatus. Thompson did not say what features of intermediacy he observed in the putative hybrids, but he did note that they produced leaves with acuminate-cuspidate apices and that they would key to M. cusickii. Leaves of Diplacus deschutesensis are broad with abruptly and sharply acuminate apices like those of D. cusickii, and the corolla coloration also is similar. The flowers (calyx length, corolla tube-throat length, limb width) and capsules of D. deschutesensis are considerably smaller, and the distal leaves are smaller with glabrous surfaces. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Diplacus pictus is known from Kern and Tulare counties in the Sierra Nevada foothills and Tehachapi Mountains. Diplacus pictus and D. mohavensis have been treated together as Mimulus sect. Mimulastrum; molecular data (P. M. Beardsley et al. 2004) indicate that the two species are independently derived and that the similarities in corolla morphology are convergent. Diplacus pictus produces cleistogamous flowers in drought conditions. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 440. | FNA vol. 17, p. 444. |
Parent taxa | Phrymaceae > Diplacus | Phrymaceae > Diplacus |
Sibling taxa | ||
Synonyms | Eunanus pictus, Mimulus pictus | |
Name authority | G. L. Nesom: Phytoneuron 2013-65: 8, fig. 5. (2013) | (Curran ex Greene) G. L. Nesom: Phytoneuron 2012-39: 30. (2012) |
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