Diplacus parryi |
Diplacus longiflorus |
|
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annual redspot monkeyflower, Parry's monkeyflower |
southern bush monkeyflower |
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Habit | Herbs, annual. | Subshrubs. |
Stems | erect, 10–120(–170) mm, finely and minutely glandular-puberulent. |
erect, 300–1000(–2000) mm, glandular-puberulent and short-villous. |
Leaves | usually cauline, relatively even-sized; petiole absent; blade narrowly elliptic to sublinear or oblanceolate, sometimes obovate, (5–)8–25(–31) × (1–)2–9(–12) mm, margins entire, plane, not ciliate, apex: proximals usually rounded, distals usually acute, surfaces glandular-puberulent. |
usually cauline, relatively even-sized; petiole absent; blade elliptic to lanceolate, elliptic-lanceolate, or elliptic-oblanceolate, 25–65(–80) × 4–15(–25) mm, margins entire or serrate, revolute, apex acute to obtuse, abaxial surfaces densely hairy, hairs branched, adaxial glabrescent. |
Pedicels | (1.5–)2–4(–9) mm in fruit. |
5–16 mm in fruit. |
Flowers | 2 per node, or 1 or 2 per node on 1 plant, chasmogamous. |
2 per node, chasmogamous. |
Styles | glandular-puberulent. |
minutely glandular. |
Corollas | of 2 color forms: (a) magenta, ± deepening at mouth, usually with 6–8 darker spots in arc on abaxial lip around mouth, throat floor yellow to whitish with reddish speckling and (b) yellow with 6–8 narrow reddish spots or lines in arc on abaxial lip around mouth and reddish speckling on throat floor, palate ridges yellow extending onto lip, tube-throat (10–)12–18(–20) mm, limb 11–17.5(–20) mm diam., not bilabiate. |
light orange to pale yellow-orange, palate ridges orangish, tube-throat 34–45 mm, limb (25–)28–40 mm diam., bilabiate, lobes oblong, apex of adaxial 2 each shallowly incised. |
Calyces | symmetrically attached to pedicels, not inflated in fruit, (5–)7–12(–13) mm, glandular-puberulent, lobes unequal, adaxial longer, apex broadly rounded to acute, often apiculate, ribs often dark purple, intercostal areas purplish or white. |
not inflated in fruit, 22–32 mm, glandular-puberulent and short glandular-villous to hirsute-villous, tube slightly dilated distally, lobes unequal, apex acute, ribs green, intercostal areas light green. |
Capsules | (5.5–)6.5–10.5 mm. |
18–28 mm. |
Anthers | included, glabrous. |
included, glabrous. |
Stigmas | included, lobes equal. |
included, lobes equal. |
2n | = 16. |
= 20. |
Diplacus parryi |
Diplacus longiflorus |
|
Phenology | Flowering Apr–Jun(–Jul). | Flowering (Mar–)Apr–Jul. |
Habitat | Banks, gravel bars, washes, sandy ravines, rocky hillsides, ledges and bases of limestone ledges and boulders, clay loam-basalt, bare areas, often with Coleogyne and Larrea, sagebrush and pinyon-juniper. | Rocky hillsides and slopes, talus, chaparral, live oak woodlands. |
Elevation | (600–)800–1700(–2200) m. ((2000–)2600–5600(–7200) ft.) | (50–)100–1300(–1800) m. ((200–)300–4300(–5900) ft.) |
Distribution |
AZ; CA; NV; UT
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CA; Mexico (Baja California)
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Discussion | Diplacus parryi has a limited range, primarily in the Mohave Desert in four states: Arizona (Mohave County), California (Inyo County, where apparently disjunct, in pinyon-juniper woodlands, and at higher than typical elevation), Nevada (Clark and Lincoln counties), and Utah (Washington County). The glandular-puberulent vestiture and unequal calyx lobes are diagnostic. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Diplacus longiflorus occurs in southwestern California and northeastern Baja California. Plants and populations intermediate between Diplacus longiflorus and D. puniceus are found where their ranges meet in Los Angeles, Orange, Riverside, and San Diego counties. The intermediate morphology and geography indicate that these are hybrids (as has been hypothesized by, for example, M. A. Streisfeld and J. R. Kohn 2005; D. M. Thompson 2005; M. C. Tulig and G. L. Nesom 2012), which have been identified as D. ×australis (McMinn ex Munz) Tulig. Streisfeld and Kohn found that in San Diego County, D. longiflorus and D. puniceus are discrete in morphology and separated in geography, with a narrow zone of hybrids and putative introgressants between. Plants identified as Diplacus ×lompocensis McMinn (as species) occur where the geographic ranges of D. aurantiacus and D. longiflorus meet in Santa Barbara County and southern San Luis Obispo County; these plants have floral features intermediate between these two species. Stable populations of the putative hybrid are found throughout this region, although at either end of its distribution, the populations may more closely resemble the nearer parent. Considering that both D. aurantiacus and D. longiflorus are morphologically consistent across broad regions, D. ×lompocensis is perhaps best interpreted as a zone of introgression. Diplacus ×australis and D. ×lompocensis are similar to D. longiflorus as well as to each other in most features; they are easily separated only by geographic range. Diplacus longiflorus is distinct from both in its larger corolla features and, frequently, calyx indument. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 442. | FNA vol. 17, p. 450. |
Parent taxa | Phrymaceae > Diplacus | Phrymaceae > Diplacus |
Sibling taxa | ||
Synonyms | Mimulus parryi, M. spissus var. lincolnensis | D. arachnoideus, D. glutinosus var. pubescens, Mimulus aurantiacus var. pubescens, M. longiflorus |
Name authority | (A. Gray) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 27. (2012) | Nuttall: Ann. Nat. Hist. 1: 139. (1838) — (as longiflora) |
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