Diplacus rattanii

(A. Gray) G. L. Nesom

Phytoneuron 2012-39: 29. 2012.

Common names: Rattan’s monkeyflower
Endemic
Basionyms: Mimulus rattanii A. Gray Proc. Amer. Acad. Arts 20: 307. 1885
Synonyms: M. rattanii subsp. decurtatus (A. L. Grant) Munz
Treatment appears in FNA Volume 17. Treatment on page 432. Mentioned on page 430.

Herbs, annual. Stems erect, 10–180 (–230) mm, densely glandular-pubescent and viscid. Leaves basal and cauline, basal in rosette, cauline gradually reduced distally; petiole absent; blade obovate to narrowly elliptic, 3–46 (–70) × 1–20 (–25) mm, margins entire or crenate, plane, apex rounded or obtuse, surfaces: proximals glabrate, distals glandular-pubescent and viscid. Pedicels 1–3 (–6) mm in fruit. Flowers 1 per node, chasmogamous. Calyces symmetrically attached to pedicels, inflated in fruit, 5–10 mm, glandular-pubescent and viscid, lobes subequal, apex obtuse, often apiculate, ribs dark green to purplish, intercostal areas whitish. Corollas pink to magenta, throat floor with 3 dark purple lines meeting abaxial lip lobes, palate ridges yellow, tube-throat 7–10 mm, limb 4–7 mm diam., not bilabiate. Anthers nearly exserted, glabrous. Styles eglandular-puberulent. Stigmas nearly exserted, lobes unequal, abaxial 5–7 times adaxial. Capsules 7–11 (–12) mm. 2n = 16.


Phenology: Flowering Apr–Jul.
Habitat: Recently burned or cleared areas, sandhills, sandstone outcrops, sandy gravel and loam, decomposed granite, serpentine-derived soils, open chaparral, chaparral margins, open yellow pine-manzanita woodlands.
Elevation: 300–1300 m.

Discussion

Diplacus rattanii occurs mostly in near-coastal localities from Glenn and Lake counties south to Ventura County.

Selected References

None.

Lower Taxa

None.

... more about "Diplacus rattanii"
5-7 times adaxial lobes +
Obtuse (?) +  and Rounded (?) +
Guy L. Nesom +  and Melissa C. Tulig +
(A. Gray) G. L. Nesom +
Mimulus rattanii +
4.6 cm46 mm <br />0.046 m <br /> (7 cm70 mm <br />0.07 m <br />) +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (4.6 cm46 mm <br />0.046 m <br />) +
obovate;narrowly elliptic +
not +, leathery +  and not fleshy +
1mm;20mm +
glandular-pubescent +
inflated +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
1.1 cm11 mm <br />0.011 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
Rattan’s monkeyflower +
not +, rarely radially symmetric +  and weakly strongly bilabiate +
pink;magenta +
glandular-pubescent +
300–1300 m. +
hairy +  and glabrous +
reflexed;nodding;erect +
reduced +
compressed;asymmetrically ovoid;lanceoloid or nearly cylindric +
Recently burned or cleared areas, sandhills, sandstone outcrops, sandy gravel and loam, decomposed granite, serpentine-derived soils, open chaparral, chaparral margins, open yellow pine-manzanita woodlands. +
gland-tipped +
alternate +, opposite +, rosulate +  and subrosulate +
persistent +  and deciduous +
cauline +  and basal +
not bilabiate +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
dark purple +
triangular;deltate +
unequal +  and subequal +
palmate +  and subpinnate +
plane +, crenate +  and entire +
wing-angled +  and angled +
basal +  and superior +
tenuinucellate +  and unitegmic +
orthotropous +  and anatropous +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
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–Jul. +
Phytoneuron +
dark green +  and purplish +
flattened +, ovoid +  and oblong +
deciduous +
1 cm10 mm <br />0.01 m <br /> (18 cm180 mm <br />0.18 m <br />) +
eglandular-puberulent +
M. rattanii subsp. decurtatus +
Diplacus rattanii +
Diplacus +
species +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
10 +, 9 +  and 8 +