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Key to families | Table of families and genera

This text currently parallels The Jepson Manual: Vascular Plants of California, Second Edition that is now available at the University of California Press.

Text appearing in blue on this page will not appear in the printed book; it will be displayed only on the Web. 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.

 

PYROLA WINTERGREEN

Gary D. Wallace & Erich Haber


Perennial, evergreen, rhizomed.
Leaf: ± basal, reniform, ovate, ± round, elliptic, or obovate, ± entire to round- or sharp-toothed, petioled.
Inflorescence: raceme, ± erect, not 1-sided, elongate; peduncle smooth, glabrous; bracts generally 1–several, ovate or lanceolate.
Flower: radial, ± closed or bilateral, ± open, parts in 5s, free; petals without tubercles, upper 2 generally forming hood over upturned stamens; stamens 10, filaments generally widened at base, smooth, glabrous, anther pores generally on tubes; nectary 0; ovary superior, style straight, ± included, or downcurved, exserted, stigma peltate, with 5 spreading lobes above a prominent, reflexed collar or not peltate, with 5 ± erect lobes projecting beyond a delicate, reflexed collar.
Fruit: capsule, pendent; valves opening base to tip, margins fibrous.
± 15–20 species: generally circumboreal, high mtns of C.Am, Sumatra. (Latin: little pear, ± from leaf shape) [Haber 1987 Syst Bot 12:324–335]

Key to Pyrola

1. Style straight, ± included; flower ± radial, ± closed; anthers < 1 mm, pore not on tube; stigma peltate, lobes spreading (subg. Amelia) ..... P. minor

1' Style downcurved, exserted; flower bilateral, ± open; anthers 2–5.5 mm, pore on tube; stigma not peltate, lobes ± erect (subg. Pyrola)

2. Fl bract generally >> pedicel, ovate; sepals ovate to generally lanceolate or lance-oblong; pore tube < ± 1/5 anther ..... P. asarifolia

3. Fl bract < ± 1.5 × pedicel; sepals 2–3.5 mm, ovate to generally lanceolate; leaf ovate, round, or obovate, entire to obscurely round-toothed; anthers 2–3 mm ..... subsp. asarifolia

3' Fl bract generally >> 2 × pedicel; sepals 3–5.8 (generally >> 3.5) mm, lance-oblong; leaf ovate to elliptic, generally sharp-toothed; anthers 2.5–3.5 mm ..... subsp. bracteata

2' Fl bract < pedicel, lanceolate; sepals deltate to ovate; pore tube ± 1/3 anther

4. Lf generally < 4 cm, ovate-elliptic, obovate, or reduced, bract-like, veins not white-bordered; petals pale green; sepals generally < 1.8 mm, deltate-ovate, ± blunt; n SNH (near Downieville, Sierra Co.) ..... P. chlorantha

4' Lf ± 0 or generally 4–10 cm, ovate to elliptic, veins white-bordered, or oblanceolate, veins not white-bordered; petals ± green, cream-white, or pink; sepals generally >> 2 mm, ovate, acute; NW, CaR, SN, SnFrB, SCoRO, TR, PR, Wrn ..... P. picta

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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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