Flora of North America species comparison

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Erythranthe laciniata

Phrymaceae

cut-leaf monkeyflower

lop-seed family, monkeyflower family
Habit Annuals, slender-taprooted or fibrous-rooted. Herbs, subshrubs, or shrubs, annual or perennial, aquatic or terrestrial, sometimes fleshy, autotrophic.
Stems

erect, simple or branched from base, 3–38 cm, glabrous or sparsely hirtellous, finely villosulous-glandular above nodes.

erect or ascending to prostrate, 4-angled, sometimes winged.
Leaves

cauline, basal deciduous by flowering;

petiole 1–35 mm, distals 0 mm;

blade 1-veined or palmately 3-veined, elliptic to elliptic-obovate, oblanceolate, or oblong, 3–55 mm, longer than wide, base attenuate, margins narrowly pinnately lobed or dissected, sometimes merely shallowly toothed, apex acute to obtuse, surfaces glabrate.

deciduous or persistent, basal and cauline or all cauline, rarely subrosulate or rosulate (Erythranthe), opposite, or alternate distally, simple;

stipules absent;

petiole present or absent;

blade fleshy, semi-fleshy, or not, not leathery, margins entire or toothed.
Inflorescences

terminal and axillary racemes or flowers solitary (Glossostigma, some Erythranthe, some annual plants);

flowers erect to nodding or strongly reflexed and appressed to inflorescence axis (Phryma).
Flowers

plesiogamous, 2–8, from medial to distal nodes, chasmogamous, sometimes cleistogamous.

bisexual, perianth and androecium hypogynous;

sepals (3 or)4 or 5, proximally connate, calyx radially or bilaterally symmetric;

petals 3–5, proximally connate, corolla bilaterally symmetric, rarely nearly radially in reduced forms, strongly to weakly bilabiate, rarely nearly regular, salverform to tubular-funnelform, funnelform, campanulate, or compressed;

stamens (2–)4, adnate to corolla, didynamous [both pairs of equal length in autogamous forms], staminode 0;

pistil 1, 2-carpellate, ovary superior, (1 or)2-locular, placentation axile, basal (Phryma), or parietal (Diplacus, Mimetanthe);

ovules anatropous or orthotropous (Phryma), unitegmic, tenuinucellate;

style 1;

stigma 1, 2-lobed.
Styles

glabrous.

Corollas

yellow, throat red-spotted, abaxial limb of larger usually with 1 large red splotch, bilaterally symmetric, ± bilabiate;

tube-throat funnelform, 4–6 mm, exserted 1–2 mm beyond calyx margin;

limb expanded 5–6 mm.

Fruiting pedicels

nodding 30–140º at calyx base, 5–25 mm.

Fruiting calyces

red-spotted, cylindric-campanulate, inflated, sagittally compressed, 8–10 mm, glabrate, throat closing, lobes ca. equal size or adaxial slightly longer.

Fruits

capsules, dehiscence loculicidal [septicidal or irregular], or achenes [berry].
Capsules

included, stipitate, 5–7 mm.

Seeds

1–2000, yellowish brown or brown, narrowly ellipsoid, slightly flattened bilaterally;

embryo straight, endosperm sparse.
Anthers

included, glabrous.

2n

= 28.

Erythranthe laciniata

Phrymaceae
Phenology Flowering Apr–Jul(–Aug).
Habitat Cracks, depressions, and seeps in granite outcrops, ledges, talus and scree, rocky streamsides, rocky slopes, roadsides, intermittent drainages.
Elevation 900–2300(–3300) m. (3000–7500(–10800) ft.)
Distribution
from FNA
CA
[WildflowerSearch map]
North America; Mexico; Central America; w South America (primarily Andean); s Asia (India); se Asia; e Africa; Indian Ocean Islands (Madagascar); Pacific Islands (New Zealand); Australia [Introduced in Europe, s Africa]
[BONAP county map]
Discussion

Erythranthe laciniata is known from Amador County south to Kern County.

As in Erythranthe nasuta, the adaxial calyx lobe in E. laciniata tends to be narrowly lanceolate to triangular (noselike) and perceptibly falcate, curving slightly upward both in flower and in fruit. The adaxial lobe is not so prominently protruding as it often is in E. nasuta.

Corolla size is variable in Erythranthe laciniata, but the size of those with an open throat (versus much reduced in size and apparently cleistogamous) is not strongly correlated with size of the individual plant, and all on one plant are about the same size (compare with E. nasuta). Corollas on some plants, however, are all or nearly all greatly reduced and apparently cleistogamous. Fertilization in even the larger corollas apparently is autogamous; the anther pairs are slightly separated or equal in level, and the stigma is in the middle of the anthers or at the level of the adaxial pair.

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

Genera 13, species ca. 200 (6 genera, 139 species in the flora).

Over one half of the species in Phrymaceae are members of Diplacus and Erythranthe and together include over 160 species; all other genera each have seven or fewer species.

Until recently, Phrymaceae consisted only of Phryma leptostachya, a taxonomically isolated species of eastern North America and eastern Asia. Molecular studies have established a relationship not with the Verbenaceae, as was earlier postulated (see H. L. Whipple 1972; R. Venkata Ramana et al. 2000), but rather with Mimulus and other genera, suggesting that Phrymaceae should be enlarged. The sequence of genera in Phrymaceae here follows the phylogeny proposed by P. M. Beardsley and R. G. Olmstead (2002).

One of the major lineages of Phrymaceae is primarily a Southern Hemisphere group ranging from Australia and New Zealand to southeastern and south Asia (India), Madagascar, and South Africa. Mimulus in the narrow sense, including the two endemic North American species, is part of this group, which includes 24 species in seven genera. The largest major lineage includes 158 species in five genera from North America, South America, and southeast Asia. This lineage includes two genera from Mexico and Central America: Hemichaena Bentham, which is sister to the North American Diplacus and Mimetanthe, and Leucocarpus D. Don, which is sister to the American and Asian Erythranthe.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Plants aquatic or semi-aquatic, mat-forming.
→ 2
2. Stems functionally stolons, leaves on stolons; sepals 3; leaf blades fleshy.
Glossostigma
2. Stems prostrate to decumbent or erect; sepals 5, sometimes 3 in reduced forms; leaf blades sometimes thickened or semi-fleshy.
Erythranthe
1. Plants terrestrial or, if semi-aquatic, not mat-forming.
→ 3
3. Flowers strongly reflexed and appressed to inflorescence axes in fruit; fruits achenes; bracteoles present.
Phryma
3. Flowers lateral or erect to nodding, not strongly reflexed and appressed in fruit; fruits capsules; bracteoles absent.
→ 4
4. Fruit apices rounded to truncate; placentation axile.
→ 5
5. Leaf venation brochidodromous; stamens adnate to middle of corolla.
Mimulus
5. Leaf venation acrodromous (veins usually basal only, sometimes basal and suprabasal); stamens adnate proximal to middle of corolla.
Erythranthe
4. Fruit apices attenuate; placentation parietal.
→ 6
6. Pedicels ± equal to or slightly longer than calyces; calyx lobe midveins low-rounded, not wing-angled; fruit walls densely pustulate-glandular.
Mimetanthe
6. Pedicels nearly absent or shorter than calyces, rarely ± equal to or slightly longer than calyces; calyx lobe midveins angled or wing-angled; fruit walls smooth, eglandular.
Diplacus
Source FNA vol. 17, p. 419. FNA vol. 17, p. 365. Authors: Richard K. Rabeler, Craig C. Freeman, Wayne J. Elisens.
Parent taxa Phrymaceae > Erythranthe
Sibling taxa
E. acutidens, E. alsinoides, E. ampliata, E. androsacea, E. arenaria, E. arenicola, E. arvensis, E. barbata, E. bicolor, E. brachystylis, E. breviflora, E. breweri, E. caespitosa, E. calcicola, E. calciphila, E. cardinalis, E. carsonensis, E. charlestonensis, E. chinatiensis, E. cinnabarina, E. corallina, E. cordata, E. decora, E. dentata, E. diffusa, E. discolor, E. eastwoodiae, E. erubescens, E. exigua, E. filicaulis, E. filicifolia, E. floribunda, E. gemmipara, E. geniculata, E. geyeri, E. glaucescens, E. gracilipes, E. grandis, E. grayi, E. guttata, E. hallii, E. hardhamiae, E. hymenophylla, E. inamoena, E. inconspicua, E. inflatula, E. jungermannioides, E. latidens, E. lewisii, E. linearifolia, E. marmorata, E. michiganensis, E. microphylla, E. minor, E. montioides, E. moschata, E. nasuta, E. norrisii, E. nudata, E. palmeri, E. pardalis, E. parishii, E. parvula, E. patula, E. percaulis, E. primuloides, E. ptilota, E. pulsiferae, E. purpurea, E. regni, E. rhodopetra, E. rubella, E. scouleri, E. shevockii, E. sierrae, E. suksdorfii, E. taylorii, E. thermalis, E. tilingii, E. trinitiensis, E. unimaculata, E. utahensis, E. verbenacea, E. washingtonensis, E. willisii
Subordinate taxa
Diplacus, Erythranthe, Glossostigma, Mimetanthe, Mimulus, Phryma
Synonyms Mimulus laciniatus, M. eisenii
Name authority (A. Gray) G. L. Nesom: Phytoneuron 2012-39: 44. (2012) Schauer
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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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