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Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
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Perennial herb, shrub, tree. Stem: bark often peeling distinctively. Leaf: simple or 0, generally cauline, alternate, opposite (whorled), evergreen or deciduous, often leathery, petioled or not; stipules 0. Inflorescence: raceme, panicle, cyme, or flowers 1, terminal or axillary, generally bracted; pedicel often with 2 bractlets. Flower: generally bisexual, generally radial, bell-shaped, cylindric, or urn-shaped; sepals generally (0)4–5, generally free; petals generally (0)4–5, free or fused; stamens (2–5)8–10, free, filaments rarely appendaged, anthers dehiscing by pores or slits, awns 0 or 2(4), seemingly abaxial, reduced or elongate, generally curved; nectary generally present at ovary base, generally disk-like; ovary superior or inferior, chambers generally 1–5, placentas axile or parietal, ovules 1–many per chamber, style 1, stigma head- to funnel-like or lobed. Fruit: capsule, drupe, berry. Seed: generally many, winged or not.
± 100 genera, 3000 species: generally worldwide except deserts; some cultivated, especially Arbutus, Arctostaphylos, Rhododendron, Vaccinium. [Kron et al. 2002 Bot Rev 68:335–423] Monophyletic only if Empetraceae included, as treated here. Ledum included in Rhododendron. Non-green plants obtain nutrition from green plants through fungal intermediates. —Scientific Editors: Gary D. Wallace, Thomas J. Rosatti.
Key to Ericaceae
1 sp. (Greek: different turned, from erect inflorescence)
Perennial herb, non-green, glabrous, rhizomed, roots brittle. Stem: 0. Leaf: 0. Inflorescence: raceme-like, < 5 dm, white with red or maroon stripes, emerging from ground erect, persistent after seed dispersal; bracts < 3 cm; bractlets 0; pedicel not recurved when anthers open. Flower: sepals 0(2–4); corolla cup-shaped, white, petals 5, free, concave; stamens 10, exserted, anthers maroon, dehiscing by short separate slits; nectary lobes 10, short; ovary superior, chambers 5, placentas axile, style < 2 mm, stigma disk-like. Fruit: capsule, loculicidal, dehiscing tip to base. Seed: many per chamber, fusiform.
2n=26. Oak, mixed, or conifer forest; 75–3000 m. Northwestern California, High Cascade Range, High Sierra Nevada; to British Columbia, Montana, Nevada. Petals incorrectly considered sepals by some. Jun–Aug [Online Interchange]
Unabridged references: [Wallace 1975 Wasmann J Biol 33:1–88]
Previous taxon: Allotropa
Next taxon: Arbutus
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Nov 24 2014
Citation for this treatment: [Author of taxon treatment] 2013. Allotropa, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=12707, accessed on Nov 24 2014
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© 2006 Steve Matson
|Geographic subdivisions indicated for the distribution of Allotropa virgata|| Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).
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