Fothergilla

Murray in Linnaeus

in Linnaeus, Syst. Veg. ed. 13, 418. 1774.

Common names: Witch-alder
Etymology: for Dr. John Fothergill, (1712-1780), London physician and patron of early American botany
Treatment appears in FNA Volume 3.
Revision as of 07:48, 30 July 2020 by imported>Volume Importer
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 TaxonIllustrator 
FNA03 P69 Hamamelis Fothergilla Liquidambar pg 365.jpegLiquidambar styraciflua
Fothergilla gardenii
Hamamelis virginiana
Fothergilla major
John Myers
John Myers
John Myers
John Myers

Shrubs, usually multitrunked, from short stolons, often forming dense clumps, not aromatic or resinous; twigs, leaves, and flower buds stellate-pubescent. Bark light gray on mature branches, smooth. Dormant buds naked, densely stellate-pubescent; terminal bud short-stalked or sessile, with 2-4 subtending scales. Leaves short-petiolate. Leaf-blade elliptic to obovate to oblong, ovate, to nearly orbiculate, unlobed, pinnately veined, base oblique, cuneate, truncate to rounded, margins transparent, crenate or serrate-dentate, occasionally undulate to entire, apex rounded to acute. Inflorescences terminal, elongate, many flowered, dense spikes, sessile or short-pedunculate. Flowers bisexual, fragrant, basal flowers functionally staminate, appearing before leaves; calyx lobes 5-7 (-9), erect, minute, irregular, forming shallowly campanulate hypanthium with adnate androecium; sepals connate; petals absent; stamens 12-32, conspicuous, in centrifugal sequence on rim of hypanthium; filaments white, 4-17 mm, conspicuous, the longest somewhat club-shaped distally; anthers dehiscing by 2 flaps; staminodes absent; ovary adnate to hypanthium, ca. 1/3 its length; styles 2, becoming hornlike, with recurved tip. Capsules in groups of more than 3, stylar beaks prominent, appressed stellate-pubescent mixed with longer, straight hairs on calyx rim and distally, loculicidal. Seeds 2 per capsule, reddish-brown, glossy, bony, not winged. x = 12.

Distribution

Temperate regions, e North America

Discussion

Species 2 (2 in the flora).

The species of Fothergilla are spring-flowering shrubs with inflorescences of apetalous flowers and heads of showy white stamens. Both species are in cultivation. The relationship of Fothergilla to other genera of the Hamamelidaceae is unclear. The genus is restricted to the southeastern United States.

Selected References

None.

Key

1 Shrubs, 3–10(–20) dm, branches slender; inflorescences 1.5–4.2 × 1.5–3.5 cm; stipules 1.5–4(–6.1) mm; leaf blade elliptic-oblong, obovate, or somewhat orbiculate, base symmetric, 1.9–6 × 1.3–4.5 cm, distal margins dentate and mucronate-toothed or entire; veins 4–5 pairs. Fothergilla gardenii
1 Shrubs, 7–65 dm, branches robust; inflorescences 3–6 × 2–3 cm; stipules 2.8–7(–10.2) mm; leaf blade broadly elliptic or somewhat orbiculate to obovate, base asymmetric, 2.5–13.5 × 4.2–12.5 cm, distal margins sinuate to repand and mucronate-toothed, rarely entire, veins (4–)5–6(–7) pairs. Fothergilla major

"longest" is not a number.

... more about "Fothergilla"
rounded;acute +
Frederick G. Meyer +
Murray in Linnaeus +
light gray +
truncate;rounded +
stellate-pubescent +
persistent +
4-5(-7)-lobed +
stellate-pubescent +
Witch-alder +
Temperate regions +  and e North America +
for Dr. John Fothergill, (1712-1780), London physician and patron of early American botany +
club--shaped +
0.4 cm4 mm <br />0.004 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
stellate-pubescent +
fragrant +
2-seeded +  and capsular +
septicidal +  and loculicidal +
straight +
light colored +
lateral +  and apical +
campanulate +
terminal +  and axillary +
unlobed +, elliptic +  and obovate +
short-petiolate +
transparent +
serrate-dentate occasionally undulate;entire +
half-inferior +
pendent +  and anatropous +
many +  and 1 +
distinct +
in Linnaeus, Syst. Veg. ed. +
reddish-brown +
fusiform +
short-pedunculate +  and sessile +
conspicuous +
persistent +
recurved +  and erect +
persistent +
recurved;erect +
hornlike +
Fothergilla +
Hamamelidaceae +
sessile +  and short-stalked +
1 (?) +  and 2 (?) +