Diplacus graniticola |
Diplacus thompsonii |
|
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granite-crack monkeyflower |
Thompson'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, 30–150 mm, nodes 3–6, internodes 1–6 mm, glandular-puberulent. |
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, proximal base narrowed to petiole-like extension; blade lanceolate or narrowly lanceolate to elliptic-lanceolate, 7–30 × 2–7 mm, margins entire, plane, apex acute, surfaces glandular-puberulent. |
Pedicels | 1–3 mm in fruit. |
1–3 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. |
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. |
dark magenta to red-purple, throat floor yellowish and red-dotted, with a red-purple midvein radiating onto base of each lobe of proximal lip, palate ridges yellow, tube-throat 10–14 mm, limb 6–10 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, inflated in fruit, 7–9 mm, glandular-villous, tube strongly plicate, lobes narrowly triangular, subequal, apex acuminate to attenuate, ribs broad, darkened, blackish, thickened, strongly raised, intercostal areas whitish, membranous. |
Capsules | 6–10 mm. |
7–9 mm. |
Anthers | included, ciliate. |
included, ciliate. |
Stigmas | included, lobes unequal, abaxial 1.5 times adaxial. |
included, lobes subequal. |
2n | = 16. |
= 16. |
Diplacus graniticola |
Diplacus thompsonii |
|
Phenology | Flowering Apr–Sep. | Flowering May–Jul. |
Habitat | Granite cracks and crevices. | Granitic soils and sands, sandy loam, outwash slopes, dry sagebrush flats, pinyon and Jeffrey pine woodlands. |
Elevation | 300–2100 m. (1000–6900 ft.) | 1800–2600(–3000) m. (5900–8500(–9800) 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 thompsonii is abundant along the eastern side of the Sierra Nevada in Inyo and southern Mono counties. D. M. Thompson (2005) identified these populations as intermediate between Mimulus nanus var. mephiticus and M. bigelovii; diagnostic features are more similar to those of the latter, especially the inflated and strongly wing-angled calyx and the non-bilabiate corollas. The range of D. thompsonii is within the northern limit of D. bigelovii var. cuspidatus, which is different in leaf morphology. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 438. | FNA vol. 17, p. 435. |
Parent taxa | Phrymaceae > Diplacus | Phrymaceae > Diplacus |
Sibling taxa | ||
Name authority | Schoenig: Phytoneuron 2017-24: 1, figs. 1, 3–10. (2017) | G. L. Nesom: Phytoneuron 2013-46: 1, figs. 2, 3. (2013) |
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