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Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.

 

HORSFORDIA

John C. La Duke


[Subshrub], shrub, densely stellate-tomentose or -scabrous. Stem: erect. Leaf: petiole stout; blade lanceolate to ± round or cordate, ± entire or irregularly fine-toothed; stipules 2–5 mm. Inflorescence: axillary racemes clustered terminally or flowers 1 in leaf axils [panicle]; bractlets 0. Flower: petals white, yellow, blue-lavender, rose, or pink; anthers at tip of filament tube; styles 6–11, > anthers, stigmas head-like. Fruit: ± glabrous; segments 6–12, below indehiscent, firm, net-veined, above dehiscent, with 2 spreading, scarious wings. Seed: 1–3 per segment, puberulent or minutely ridged.
4 species: southwestern United States, northwestern Mexico. (F.H. Horsford, Vermont botanist, collector, 1855–1923)
Unabridged references: [Fryxell 1985 Syst Bot 10:268–272; Fryxell 1988 Syst Bot Monogr 25:234–240]

Key to Horsfordia

1. Petals blue-lavender, rose, or pink, 12–21 mm, exceeding styles; fruit segment wings ± lanceolate; seed 1.9 mm, minutely roughened ..... H. alata

1' Petals white or yellow, 6–9 mm, extending to style tips; fruit segment wings generally ± widely ovate; seed 2.2 mm, densely puberulent ..... H. newberryi

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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