Diplacus graniticola

Schoenig

Phytoneuron 2017-24: 1, figs. 1, 3–10. 2017.

Common names: Granite-crack monkeyflower
Endemic
Treatment appears in FNA Volume 17. Treatment on page 438. Mentioned on page 431, 437.

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. Leaves usually cauline, relatively even-sized; petiole weakly delimited; blade usually lanceolate to ovatelanceolate, 20–40 × 4–12 mm, margins entire, rarely toothed, plane, apex rounded to obtuse or acute, surfaces: proximals often glabrate abaxially, distals glandular-villous. Pedicels 1–3 mm in fruit. Flowers 2 per node, or 1 or 2 per node on 1 plant, chasmogamous. 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. 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. Anthers included, ciliate. Styles glandular-puberulent. Stigmas included, lobes unequal, abaxial 1.5 times adaxial. Capsules 6–10 mm. 2n = 16.


Phenology: Flowering Apr–Sep.
Habitat: Granite cracks and crevices.
Elevation: 300–2100 m.

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.

Selected References

None.

Lower Taxa

None.

... more about "Diplacus graniticola"
1.5 times adaxial lobes +
Guy L. Nesom +  and Melissa C. Tulig +
Schoenig +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
usually lanceolate;ovatelanceolate +
not +, leathery +  and not fleshy +
4mm;12mm +
glandular-villous +
not inflated +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Granite-crack monkeyflower +
not +, rarely radially symmetric +  and weakly strongly bilabiate +
pale lavender;pinkish or pale +
glandular-villous +
300–2100 m. +
hairy +  and glabrous +
reflexed;nodding;erect +
reduced +
compressed;asymmetrically ovoid;lanceoloid or nearly cylindric +
Granite cracks and crevices. +
gland-tipped +
0.1 cm1 mm <br />0.001 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
green +  and purple +
glandular-villous +
purple splotch +  and dark red +
alternate +, opposite +, rosulate +  and subrosulate +
persistent +  and deciduous +
equal-sized +
1 cm10 mm <br />0.01 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
triangular +
unequal +  and subequal +
palmate +  and subpinnate +
plane +  and toothed +
wing-angled +  and angled +
2 +, 1 +, 4 +  and 15 +
chasmogamous +
basal +  and superior +
tenuinucellate +  and unitegmic +
orthotropous +  and anatropous +
rarely more or less equal to or slightly longer +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Flowering Apr–Sep. +
Phytoneuron +
blackish +  and darkened +
thickened +  and narrow +
flattened +, ovoid +  and oblong +
deciduous +
6 cm60 mm <br />0.06 m <br /> (12 cm120 mm <br />0.12 m <br />) +
glandular-puberulent +
Eunanus +  and Mimulus sect. Diplacus +
Diplacus graniticola +
Diplacus +
species +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
white splotches +
10 +, 9 +  and 8 +