Flora of North America species comparison

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Diplacus rupicola

Diplacus mephiticus

Death Valley monkeyflower, rock midget

foul odor monkeyflower, skunky monkeyflower
Habit Herbs, perennial, with woody caudex. Herbs, annual.
Stems

erect to ascending, sometimes pendent, 10–170 mm, densely and finely glandular-puberulent.

erect, (20–)30–150(–180) mm, glandular-pubescent and viscid-villous.
Leaves

usually basal rosettes and proximal cauline, relatively even-sized;

petiole absent, base gradually narrowed to broad, petiole-like extension;

blade oblanceolate, (10–)18–60(–80) × (1.5–)3–15(–26) mm, margins entire, plane, not ciliate, apex acute, surfaces glandular-puberulent.

usually cauline, relatively even-sized;

petiole absent;

blade ovate to oblong or narrowly elliptic to narrowly lanceolate, narrowly oblong, or linear, 10–25 × 1–5 mm, margins entire, plane, not ciliate, apex rounded to obtuse or acute, surfaces usually glandular-pubescent and (at least along veins) viscid-villous.
Pedicels

1–3 mm in fruit.

1–3 mm in fruit.
Flowers

1 or 2 per node, chasmogamous.

2 per node, or 1 or 2 per node on 1 plant, chasmogamous.
Styles

glandular-puberulent.

glabrous or sparsely glandular-puberulent.
Corollas

limb pinkish white to nearly white with a large magenta-purple round or 2-lobed blotch at base of each lobe, throat and palate ridges golden yellow with magenta speckling, palate ridges short-pilose, throat glabrous, tube-throat 17–35 mm, limb 8–21 mm diam., not bilabiate.

of 2 color forms: (a) dark magenta, purplish, or reddish with palate ridges or whole throat floor yellow, red- or purple-dotted, lateral lobes yellowish inside and (b) yellow with red or purple spots on floor, tube-throat 8–12(–15) mm, tube 1.3–1.9 mm diam. at filament insertion, limb 5–12(–15) mm diam., bilabiate.
Calyces

asymmetrically attached to pedicel, not inflated in fruit, 8–18 mm, densely glandular-puberulent, lobes unequal, apex acuminate, ribs green, intercostal areas pale green.

symmetrically attached to pedicels, slightly inflated in fruit, (3–)4–7(–9) mm, glandular-pubescent and viscid-villous (at least along veins), lobes subequal, apex acute to acuminate, ribs dark green to purplish, intercostal areas whitish.
Capsules

3–8 mm, indehiscent until senescence of pedicel, then opening along both sutures only after wetting.

5–8 mm.
Anthers

included, glabrous or slightly puberulent at base.

exserted, short-hirsute.
Stigmas

included, lobes equal.

exserted or at opening of corolla tube-throat, lobes subequal to unequal, abaxial to 2 times adaxial.
2n

= 16.

Diplacus rupicola

Diplacus mephiticus
Phenology Flowering Feb–Jun. Flowering (May–)Jun–Aug(–Sep).
Habitat Crevices in limestone cliffs and walls, limestone ridge tops and slopes, wash edges, gravelly slopes, canyon sides. Openings in sagebrush, disturbed slopes, granite outcrops, serpentine substrates, gravelly and sandy soils, sandy moraines, pumice flats, gravelly washes, meadows, shadscale and sagebrush communities, pinyon-juniper and ponderosa pine woodlands.
Elevation 300–1800 m. (1000–5900 ft.) 1300–3700 m. (4300–12100 ft.)
Distribution
from FNA
CA
[WildflowerSearch map]
from FNA
CA; NV
[WildflowerSearch map]
Discussion

Diplacus rupicola is known from Inyo County.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Diplacus mephiticus occurs in eastern California and west-central Nevada.

Various synonyms treated here are in agreement with D. M. Thompson (2005). Mimulus coccineus (mostly from Eldorado to Tulare counties, California, and, apparently, including Eunanus angustifolius Greene from Mt. Rose, Nevada) includes relatively small, tufted plants at high elevations with relatively small calyces and relatively small, dark red-purple, strongly bilabiate corollas with prominently exserted stamens. Mimulus densus (mostly in Nevada and in Lassen, Nevada, and Plumas counties, California) includes taller plants at lower elevations with a strong tendency to produce populations with all individuals with larger, yellow, nearly regular corollas with more nearly included stamens. Typical Diplacus mephiticus has moderate-sized plants at medium elevations with magenta, bilabiate corollas.

The specific epithet mephiticus alludes to the musky odor of the plants; this has also been noted in plants of Mimulus coccineus and M. densus. Diplacus nanus, in which D. M. Thompson (2005) included D. mephiticus as a variety, apparently does not produce a mephitic odor. Diplacus cusickii also produces a mephitic odor (W. L. Ezell 1971).

The later homonym Mimulus angustifolius (Greene) A. L. Grant 1925, not Hochstetter ex Richard 1850, based on Eunanus angustifolius, pertains here.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 448. FNA vol. 17, p. 441.
Parent taxa Phrymaceae > Diplacus Phrymaceae > Diplacus
Sibling taxa
D. angustatus, D. aridus, D. aurantiacus, D. bicolor, D. bigelovii, D. bolanderi, D. brandegeei, D. brevipes, D. calycinus, D. cascadensis, D. clevelandii, D. clivicola, D. compactus, D. congdonii, D. constrictus, D. cusickii, D. cusickioides, D. deschutesensis, D. douglasii, D. fremontii, D. grandiflorus, D. graniticola, D. jepsonii, D. johnstonii, D. kelloggii, D. layneae, D. leptaleus, D. linearis, D. longiflorus, D. mephiticus, D. mohavensis, D. nanus, D. ovatus, D. parryi, D. parviflorus, D. pictus, D. pulchellus, D. puniceus, D. pygmaeus, D. rattanii, D. rutilus, D. thompsonii, D. torreyi, D. traskiae, D. tricolor, D. vandenbergensis, D. viscidus
D. angustatus, D. aridus, D. aurantiacus, D. bicolor, D. bigelovii, D. bolanderi, D. brandegeei, D. brevipes, D. calycinus, D. cascadensis, D. clevelandii, D. clivicola, D. compactus, D. congdonii, D. constrictus, D. cusickii, D. cusickioides, D. deschutesensis, D. douglasii, D. fremontii, D. grandiflorus, D. graniticola, D. jepsonii, D. johnstonii, D. kelloggii, D. layneae, D. leptaleus, D. linearis, D. longiflorus, D. mohavensis, D. nanus, D. ovatus, D. parryi, D. parviflorus, D. pictus, D. pulchellus, D. puniceus, D. pygmaeus, D. rattanii, D. rupicola, D. rutilus, D. thompsonii, D. torreyi, D. traskiae, D. tricolor, D. vandenbergensis, D. viscidus
Synonyms Mimulus rupicola Mimulus mephiticus, M. coccineus, M. coccineus var. wolfii, M. densus, M. nanus var. mephiticus, M. reifschneiderae, M. stamineus, M. washoensis, M. wolfii
Name authority (Coville & A. L. Grant) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 27. (2012) (Greene) G. L. Nesom: Phytoneuron 2012-39: 29. (2012)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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