Flora of North America species comparison

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Diplacus layneae

Diplacus pulchellus

Layne's monkeyflower

pansy or yellow-lip pansy monkeyflower, yellow-lip pansy monkeyflower
Habit Herbs, annual, herbage usually drying dark. Herbs, annual, acaulescent or caulescent.
Stems

erect, 30–160(–300) mm, nodes 3–6, glandular-puberulent to glandular-pubescent, hairs 0.2–0.8 mm.

erect, 0 or 30–50(–60) mm, glandular-puberulent.
Leaves

usually cauline, relatively even-sized;

petiole weakly delimited;

blade elliptic to narrowly elliptic, oblanceolate, elliptic-oblanceolate, or elliptic-lanceolate, 8–27(–35) × 2–8 mm, margins entire, rarely toothed, plane, apex rounded to obtuse, surfaces: proximals often glabrate, distals glandular-puberulent or glandular-pubescent.

basal densely clustered;

petiole absent;

blade linear, (6–)8–35 × 1–4.5(–9) mm, margins entire, plane, proximal 1/2+ ciliate, apex obtuse, surfaces glabrous.
Pedicels

2–4(–5) mm in fruit.

0–2 mm in fruit.
Flowers

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

1 per node, chasmogamous.
Styles

glandular-puberulent.

glandular-puberulent.
Corollas

pinkish or pale to dark magenta or red-purple, each lobe usually with a faint to dark medial line extending 1/2 or less to tip, throat floor yellowish near base, mostly white with red-purple dots near mouth, palate ridges white, tube-throat 10–15 mm, limb (8–)10–16 mm diam., not bilabiate.

bicolored, adaxial lip lavender to magenta-purple, adaxial throat very dark purple, abaxial lip or at least central lobe golden yellow, abaxial lip base and palate ridges sparsely red-dotted, 2 adaxial lobes and 2 lateral lobes of abaxial lip with dark maroon purple bands at base and extending into and merging within throat, palate ridges yellow, tube-throat (15–)20–40 mm, limb 10–18 mm diam., bilabiate, lips equal.
Calyces

symmetrically attached to pedicels, not inflated in fruit, (5–)6–8(–9) mm, glandular-puberulent to glandular-pubescent, tube strongly plicate, lobes triangular, subequal, apex acute, ribs broad, darkened, blackish, thickened, strongly raised, intercostal areas whitish, membranous.

slightly asymmetrically attached to pedicel, inflated in fruit, (5–)7–15 mm, pilose, lobes subequal, apex obtuse, ribs reddish purple, intercostal areas pale green to whitish.
Capsules

6–10(–13) mm.

(2–)3–5.5 mm, indehiscent.
Anthers

included, ciliate.

(distal pair) sometimes nearly exserted, with apical tufts of short, eglandular hairs.
Stigmas

included, lobes unequal, abaxial 1.5 times adaxial.

usually exserted, lobes subequal.
2n

= 16.

= 18.

Diplacus layneae

Diplacus pulchellus
Phenology Flowering May–Aug. Flowering Apr–Jul.
Habitat Road banks, serpentine, granitic sand, red clay, lava beds and volcanic soils, openings in chaparral, shallow dry streambeds or stream banks, burned or otherwise disturbed open areas. Vernally flooded depressions or swales, ruts, seepage areas on gentle slopes.
Elevation (100–)400–2400 m. ((300–)1300–7900 ft.) 600–2000 m. (2000–6600 ft.)
Distribution
from FNA
CA
[WildflowerSearch map]
from FNA
CA
[WildflowerSearch map]
Discussion

D. M. Thompson (2005) observed that two forms of Diplacus layneae co-occur from the Yosemite National Park area southward; one of these is recognized here as D. graniticola.

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

Diplacus pulchellus is known from Calaveras, Mariposa, and Tuolumne counties.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 437. FNA vol. 17, p. 447.
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. 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. rupicola, 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. mephiticus, D. mohavensis, D. nanus, D. ovatus, D. parryi, D. parviflorus, D. pictus, D. puniceus, D. pygmaeus, D. rattanii, D. rupicola, D. rutilus, D. thompsonii, D. torreyi, D. traskiae, D. tricolor, D. vandenbergensis, D. viscidus
Synonyms Eunanus layneae, Mimulus brachiatus, M. layneae Eunanus pulchellus, Mimulus pulchellus
Name authority (Greene) G. L. Nesom: Phytoneuron 2012-39: 29. (2012) (Drew ex Greene) G. L. Nesom: Phytoneuron 2012-39: 30. (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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