Diplacus graniticola |
Diplacus bicolor |
|
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granite-crack monkeyflower |
harlequin monkeyflower, Whitney's monkeyflower |
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Habit | Herbs, annual, herbage usually drying dark. | Herbs, annual, herbage usually drying dark. |
Stems | erect, 60–120(–150) mm, nodes 4–15(–20), internodes shorter than leaves, glandular-villous with gland-tipped hairs 1–1.6 mm. |
erect or ascending, 10–140(–220) mm, glandular-puberulent to glandular-pubescent. |
Leaves | usually cauline, relatively even-sized; petiole weakly delimited; blade usually lanceolate to ovate-lanceolate, 20–40 × 4–12 mm, margins entire, rarely toothed, plane, apex rounded to obtuse or acute, surfaces: proximals often glabrate abaxially, distals glandular-villous. |
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. |
Pedicels | 1–3 mm in fruit. |
1–3(–4) mm in fruit. |
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. |
glandular-puberulent. |
Corollas | nearly white or pale lavender to pinkish or pale to dark magenta, each lobe with a dark medial line extending nearly to tip, throat with a dark red or purple splotch at junction of each abaxial lobe and adjacent lateral lobe, throat floor sometimes with 2 adjacent white splotches at lateral lobe bases, palate ridges yellow, tube-throat 15–20 mm, limb 10–16 mm diam., bilabiate. |
(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. |
Calyces | symmetrically attached to pedicels, not inflated in fruit, 8–12 mm, glandular-villous, tube strongly plicate, lobes triangular, subequal, apex acute, ribs narrow, darkened, blackish, thickened, strongly raised, intercostal areas green to purple, not membranous. |
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. |
Capsules | 6–10 mm. |
(4.5–)6–10(–13) mm. |
Anthers | included, ciliate. |
included, ciliate. |
Stigmas | included, lobes unequal, abaxial 1.5 times adaxial. |
included, lobes equal. |
2n | = 16. |
= 16. |
Diplacus graniticola |
Diplacus bicolor |
|
Phenology | Flowering Apr–Sep. | Flowering May–Sep. |
Habitat | Granite cracks and crevices. | Disturbed areas, water runoff areas, granitic soils, edges of granite outcrops. |
Elevation | 300–2100 m. (1000–6900 ft.) | (1200–)1500–3300 m. ((3900–)4900–10800 ft.) |
Distribution |
CA
|
CA |
Discussion | Diplacus graniticola occurs in the Sierra Nevada from Tuolumne County to northern Tulare County. These plants previously were identified within D. layneae, with which they are partially sympatric; where these two occur together, D. layneae often grows in granite-derived sand and gravel immediately adjacent to the granite rock habitat of D. graniticola. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 17, p. 438. | FNA vol. 17, p. 437. |
Parent taxa | Phrymaceae > Diplacus | Phrymaceae > Diplacus |
Sibling taxa | ||
Synonyms | Eunanus bicolor, M. nanus var. bicolor, M. whitneyi | |
Name authority | Schoenig: Phytoneuron 2017-24: 1, figs. 1, 3–10. (2017) | (A. Gray) Hrusa: Phytoneuron 2014-17: 1. (2014) |
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