Diplacus johnstonii |
Diplacus viscidus |
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Johnston's monkeyflower |
sticky monkeyflower, viscid monkeyflower |
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Habit | Herbs, annual. | Herbs, annual. |
Stems | erect, (10–)30–200(–300) mm, densely glandular-puberulent. |
erect, (30–)60–370 mm, densely glandular-pubescent with viscid hairs. |
Leaves | basal and cauline, gradually reduced distally; petiole absent, bases of larger leaves often with petiole-like extensions; blade obovate or oblanceolate, sometimes elliptic, (4.5–)7–25(–32) × 2–12(–15) mm, margins entire, plane, apex rounded to acute, surfaces densely glandular-puberulent. |
usually cauline, relatively even-sized or largest proximally and gradually reduced distally; petiole absent; blade obovate to narrowly elliptic, (4–)8–54(–70) × (2–)3–23 mm, margins entire or serrate, plane, apex obtuse to rounded, surfaces: proximals glabrous abaxially, distals glandular-pubescent. |
Pedicels | 1–4(–5) mm in fruit. |
1–4(–5) mm in fruit. |
Flowers | 2 per node, or 1 or 2 per node on 1 plant, chasmogamous. |
1 per node, chasmogamous. |
Styles | densely glandular-puberulent distally. |
glandular-puberulent. |
Corollas | magenta, darker and more reddish in throat and, often, along narrow radiating lines extending from throat onto midveins of lobes, throat usually with a large dark spot on each side of mouth on lateral walls, palate ridges and throat floor yellow with reddish spots, tube-throat 9–15 mm, limb 10–15 mm diam., not bilabiate. |
lavender to magenta with diffuse dark markings on sides of darker tube-throat and with dark red-purple midveins on lobes extending from throat, lobes not dark at base, floor white or yellow, fading to white at mouth, palate ridges white or yellow fading to white distally, throat ceiling glabrous, tube-throat 10–20 mm, limb 8–20 mm diam., not bilabiate. |
Calyces | symmetrically attached to pedicels, not inflated in fruit, (6–)7–11 mm, glandular-puberulent, lobes unequal, apex acute to acuminate, ribs inconspicuous, intercostal areas reddish. |
symmetrically attached to pedicels, inflated in fruit, (7–)8–15 mm, villous, hairs eglandular, lobes subequal, apex acute to attenuate, ribs and intercostal areas often reddish. |
Capsules | 7–12 mm. |
7–11 mm. |
Anthers | included, glabrous. |
included, ciliate. |
Stigmas | exserted or at opening of corolla tube-throat, lobes equal. |
included, lobes unequal, abaxial 1.5 times adaxial. |
2n | = 16. |
= 16. |
Diplacus johnstonii |
Diplacus viscidus |
|
Phenology | Flowering May–Aug. | Flowering Apr–Jul. |
Habitat | Steep, unstable scree slides, talus slopes, gravel slides, cracks in granite cliffs, ridges, washes, steep sand and gravel slopes, canyon bottoms, gravelly road banks, recent burns, desert scrub, chaparral, juniper, pinyon-juniper, lodgepole pine, yellow pine, Jeffrey pine, and Jeffrey pine-western white pine-fir woodlands. | Chaparral clearings and openings. |
Elevation | (1000–)1300–2900 m. ((3300–)4300–9500 ft.) | 90–1300 m. (300–4300 ft.) |
Distribution |
CA
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CA
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Discussion | Populations of Diplacus johnstonii occur in Los Angeles, Riverside, San Bernardino, Santa Barbara, and Ventura counties. The populations in northwestern Los Angeles, Santa Barbara, and Ventura counties were noted by D. M. Thompson (2005) to be intermediate between D. constrictus and D. johnstonii. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
D. M. Thompson (2005) noted that Diplacus viscidus and D. compactus (as Mimulus viscidus var. compactus) are parapatric and may intergrade in central Mariposa County. The two taxa are distinguished by the presence or absence of dark stripes on the corolla lobe midveins, which are evident even on herbarium specimens. Thompson found that the two remained distinct when grown together in the greenhouse. Diplacus viscidus is known from Amador, Calaveras, Eldorado, Mariposa, Merced, and Tuolumne counties; D. compactus continues south through Fresno, northern Kern, Madera, Mariposa, and Tulare counties. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 433. | FNA vol. 17, p. 432. |
Parent taxa | Phrymaceae > Diplacus | Phrymaceae > Diplacus |
Sibling taxa | ||
Synonyms | Mimulus johnstonii | Mimulus viscidus, M. fremontii var. viscidus, M. subsecundus var. viscidus |
Name authority | (A. L. Grant) G. L. Nesom: Phytoneuron 2012-39: 29. (2012) | (Congdon) G. L. Nesom: Phytoneuron 2012-39: 29. (2012) |
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