Diplacus bicolor |
Diplacus brandegeei |
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harlequin monkeyflower, Whitney's monkeyflower |
Santa Cruz Island monkeyflower, Santa Cruz Island or broadleaf monkeyflower |
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Habit | Herbs, annual, herbage usually drying dark. | Herbs, annual. |
Stems | erect or ascending, 10–140(–220) mm, glandular-puberulent to glandular-pubescent. |
erect, 10–100 mm, glandular-puberulent to glandular-pubescent. |
Leaves | usually cauline, relatively even-sized; petiole absent; blade narrowly elliptic to narrowly oblanceolate, linear-lanceolate, or linear, (4–)7–23(–34) × 1–5(–8) mm, margins entire, plane, not ciliate, apex acute, surfaces glandular-puberulent. |
mostly cauline, relatively even-sized; petiole absent, larger with petiole-like extension; blade narrowly to broadly ovate to broadly elliptic, (4–)8–39 × (2–)4–23 mm, margins entire or crenate, plane, proximal 1/2 usually ciliate, apex obtuse, surfaces glandular-pubescent. |
Pedicels | 1–3(–4) mm in fruit. |
1.5–4 mm in fruit, not twisting to invert calyx. |
Flowers | 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. |
Styles | glandular-puberulent. |
pubescent distally. |
Corollas | (a) magenta, darkening toward mouth and within tube, often nearly obscuring dark longitudinal stripes within, throat floor or at least palate ridges yellow, or (b) yellow, usually with maroon stripes in throat extending onto lobe bases, sometimes with maroon blotches on adaxial lateral walls of throat, colored palate ridges ending in throat, tube-throat (10–)13–18(–20) mm, limb 10–19 mm diam., not bilabiate. |
throat magenta, golden yellow at base, limb magenta, palate ridges golden yellow, purple-speckled, tube-throat 12–19 mm, limb 5–11 mm diam., bilabiate, abaxial lip smaller than adaxial. |
Calyces | symmetrically attached to pedicels, not inflated in fruit, (3–)4–8(–10) mm, glandular-puberulent, tube not strongly plicate, lobes triangular, subequal, apex acute-apiculate, ribs narrow, darkened, purplish, thin, not strongly raised, intercostal areas pale green. |
distinctly asymmetrically attached to pedicel, inflated in fruit, 8–13 mm, glandular-pubescent, lobes subequal, apex obtuse, ribs green, intercostal areas pale green to whitish. |
Capsules | (4.5–)6–10(–13) mm. |
(5–)6–11 mm, indehiscent. |
Anthers | included, ciliate. |
(distal pair) nearly exserted, glabrous. |
Stigmas | included, lobes equal. |
exserted, lobes unequal, abaxial 3–4 times adaxial. |
2n | = 16. |
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Diplacus bicolor |
Diplacus brandegeei |
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Phenology | Flowering May–Sep. | Flowering Mar–Apr(–May). |
Habitat | Disturbed areas, water runoff areas, granitic soils, edges of granite outcrops. | Rocky, brushy slopes. |
Elevation | (1200–)1500–3300 m. ((3900–)4900–10800 ft.) | 100–300 m. (300–1000 ft.) |
Distribution |
CA |
CA; Mexico (Baja California) |
Discussion | Diplacus bicolor is endemic to Fresno, Kern, and Tulare counties in the southern Sierra Nevada. The combination D. whitneyi (A. Gray) G. L. Nesom is illegitimate, as Mimulus whitneyi A. Gray 1886, is a replacement name based on Eunanus bicolor A. Gray 1868. Diplacus bicolor, D. bigelovii, D. constrictus, D. graniticola, D. layneae, and D. thompsonii appear to be closely related species, sometimes intergrading where sympatric. Plants of each species often produce flowers at all nodes and have dark magenta corollas with nearly regular to weakly bilabiate limbs and villous vestiture. Specimens of each species dry to a dark color. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Diplacus brandegeei is known only from Santa Catalina (Los Angeles County), Santa Cruz (Santa Barbara County), and Guadalupe (Baja California) islands. The earliest name for the species, Mimulus latifolius A. Gray, was first transferred to Diplacus as D. latifolius (A. Gray) G. L. Nesom, but that name is a later homonym of D. latifolius Nuttall. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 437. | FNA vol. 17, p. 446. |
Parent taxa | Phrymaceae > Diplacus | Phrymaceae > Diplacus |
Sibling taxa | ||
Synonyms | Eunanus bicolor, M. nanus var. bicolor, M. whitneyi | Mimulus brandegeei, M. latifolius |
Name authority | (A. Gray) Hrusa: Phytoneuron 2014-17: 1. (2014) | (Pennell) G. L. Nesom: Phytoneuron 2012-54: 1. (2012) |
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