Erythranthe jungermannioides

(Suksdorf) G. L. Nesom

Phytoneuron 2012-39: 38. 2012.

Common names: Liverwort monkeyflower
Endemic
Basionym: Mimulus jungermannioides Suksdorf Deutsche Bot. Monatsschr. 18: 154. 1900
Treatment appears in FNA Volume 17. Treatment on page 396. Mentioned on page 378.

Perennials, stoloniferous, stolons thin, forming overwintering turions. Stems decumbent to procumbent, simple or branching near base, 5–38(–60) cm, densely glandular-villous, hairs 0.5–1.2(–1.5) mm, gland-tipped, internodes evident. Leaves cauline, basal not persistent; petiole 2–5(–20) mm; blade subpalmately to pinnately veined, broadly ovate to broadly lanceolate, 7–35(–40) × 8–25 mm, base rounded, margins sharply, irregularly dentate to denticulate, apex acute to obtuse, surfaces glandular-villous. Flowers herkogamous, 2 or 3, from medial to distal nodes. Fruiting pedicels 15–35 mm, densely glandular-villous, hairs 0.5–1.2(–1.5) mm, gland-tipped. Fruiting calyces plicate-angled, cylindric-urceolate, weakly inflated, 6–12 mm, densely glandular-villous, hairs 0.5–1.2(–1.5) mm, gland-tipped, lobes 1–2 mm, apex rounded to mucronate. Corollas yellow, with scattered red spots, palate ridges with 2 white patches at tips, bilaterally symmetric, strongly bilabiate; tube-throat funnelform, (12–)16–20(–24) mm, exserted beyond calyx margin; limb expanded 8–10 mm, lobes obovate-oblong, apex rounded to truncate. Styles scabrous. Anthers included, glabrous. Capsules included, 5–9 mm. 2n = 32.


Phenology: Flowering May–Jul(–Aug).
Habitat: Basalt crevices in seepage zones in vertical cliff faces and canyon walls.
Elevation: 100–400(–1200) m.

Discussion

The occurrence of Erythranthe jungermannioides in the Columbia River Gorge of Klickitat County, Washington (the only record from the state of Washington), is based on an imprecise, unconfirmed observation from the early 1990s (Washington National Heritage Program 2005).

Selected References

None.

Lower Taxa

None.
Guy L. Nesom +  and Naomi S. Fraga +
(Suksdorf) G. L. Nesom +
Mimulus jungermannioides +
Liverwort monkeyflower +
Oreg. +  and Wash. +
100–400(–1200) m. +
Basalt crevices in seepage zones in vertical cliff faces and canyon walls. +
Flowering May–Jul(–Aug). +
Phytoneuron +
Mimulus sect. Erythranthe +  and Mimulus subg. Synplacus +
Erythranthe jungermannioides +
Erythranthe +
species +