Erythranthe grayi |
Erythranthe brachystylis |
|
---|---|---|
Gray's monkeyflower, mariposa monkeyflower |
short-pedicel monkeyflower |
|
Habit | Annuals, fibrous-rooted. | Annuals, fibrous-rooted, sometimes taprooted, apparently sometimes producing thin runners from basal nodes. |
Stems | erect, simple or branched from base, weakly 4-angled, 8–20 cm, glabrous. |
erect, simple or branched from proximal to medial nodes, 4-angled, filiform to slightly thickened, not distinctly fistulose, 6–22 cm, glabrous. |
Leaves | basal and cauline; petiole 0 mm; blade palmately 3–5-veined, broadly ovate, 7–18 × 5–12 mm, base rounded, margins denticulate, apex acute, surfaces glabrous, rarely sparsely puberulent. |
basal and cauline; petiole: proximals 1–8 mm, distals 0 mm; blade palmately 3–5-veined, ovate to depressed-ovate or suborbicular, 10–40 × 6–25 mm, base truncate to subcordate, margins undulate, subentire, or weakly, irregularly dentate, apex rounded, surfaces: proximals and medials glabrous, distals villous, hairs thin-walled, flattened, vitreous and sharp-pointed, eglandular. |
Flowers | herkogamous, 2–20, from proximal to distal nodes. |
plesiogamous, 4–10, from medial to distal nodes, cleistogamous. |
Styles | glabrous. |
glabrous. |
Corollas | rose red, throat pink lined with rose red and a yellow patch, abaxial ridges yellow, bilaterally symmetric, weakly bilabiate; tube-throat cylindric-funnelform, 8–11 mm, exserted beyond calyx margin; limb expanded 7–10 mm. |
yellow, without red markings, weakly bilaterally or nearly radially symmetric, weakly bilabiate or nearly regular; tube-throat narrowly cylindric, 7–9 mm, exserted 0–1 mm beyond calyx margin; limb expanded 3 mm. |
Fruiting pedicels | 6–7 mm, shorter than subtending leaves, glabrous. |
5–10 mm in proximal axils, shorter than or equal to subtending leaves, 1–5 mm distally and flowers and fruits appearing sessile or subsessile, glabrous. |
Fruiting calyces | campanulate, 9–11 × 5–6 mm, margins subtruncate, glabrous, sometimes densely papillate at flowering with tiny, 1-celled, eglandular hairs, these apparently deciduous by fruiting, lobes reduced, subequal. |
red-tinged to sparsely purple-dotted or not, broadly elliptic-ovoid, inflated, sagittally compressed, 10–13 mm, minutely hirtellous, throat not or slightly closing. |
Capsules | included, 5–9 mm. |
included, stipitate, 4–5 mm. |
Anthers | included, minutely villous-hirsute. |
included, glabrous. |
Erythranthe grayi |
Erythranthe brachystylis |
|
Phenology | Flowering May–Jul(–Oct). | Flowering Jun–Aug. |
Habitat | Drying pond beds, creek banks, yellow pine, yellow pine-Libocedrus woodlands. | Around springs, steep slopes. |
Elevation | 1000–1900 m. (3300–6200 ft.) | 2100 m. (6900 ft.) |
Distribution |
CA
|
NV |
Discussion | In addition to the features noted in the key and descriptions, the fruiting calyces of Erythranthe grayi are distinctly more inflated than those of E. acutidens and E. inconspicua. G. L. Nesom (2012g) maintained E. grayi as distinct from E. acutidens, relying primarily on fruiting pedicel length (see key above), but the two have nearly identical ranges (Tuolumne County south to Kern County), and study of additional collections suggests that only a single species may be represented. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Erythranthe brachystylis is closely similar to E. arvensis. Plants of both are annual in duration and produce depressed-ovate leaves, the distal with vitreous-villous surfaces, and tiny corollas barely exserted from the calyx and probably cleistogamous. Vestiture of the distal leaves includes an admixture of eglandular sharp-pointed hairs, sometimes encountered in E. arvensis, though not typical, perhaps reflecting introgression from E. nasuta. The distinction of Erythranthe brachystylis from E. arvensis is primarily in its foreshortened pedicels and more inflated fruiting calyces. The fruiting calyces appear to be subsessile or on pedicels shorter or only equaling the subtending leaves. The difference is essentially qualitative but produces a distinctive aspect. Erythranthe brachystylis is known only from the type collection in Nye County, a region where E. arvensis has not been documented. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 382. | FNA vol. 17, p. 422. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus grayi | Mimulus brachystylis |
Name authority | (A. L. Grant) G. L. Nesom: Phytoneuron 2012-39: 34. (2012) | (Edwin) G. L. Nesom: Phytoneuron 2012-39: 43. (2012) |
Web links |