Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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ERICACEAE

HEATH FAMILY

Gary D. Wallace, except as specified

Perennial, shrub, tree
Stem: bark often peeling distinctively
Leaves simple, generally cauline, alternate, opposite, rarely whorled, evergreen or deciduous, often leathery, petioled or not; stipules 0
Inflorescence: raceme, panicle, cyme, or flowers solitary, generally bracted; pedicels often with 2 bractlets
Flower generally bisexual, generally radial; sepals generally 4–5, generally free; petals generally 4–5, free or fused; stamens 8–10, free, filaments rarely appendaged, anthers awned or not, dehiscent by pores or slits; nectary generally at ovary base, 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
Seeds generally many, sometimes winged
Genera in family: ± 100 genera, 3000 species: generally worldwide except deserts; some cultivated, especially Arbutus, Arctostaphylos, Rhododendron, Vaccinium
Reference: [Wallace 1975 Wasmann J Biol 33:1–88; 1975 Bot Not 128:286–298]
Subfamilies Monotropoideae, Pyroloideae, Vaccinioideae sometimes treated as families. Nongreen plants obtain nutrition from green plants through fungal intermediates.

ALLOTROPA

SUGAR STICK


Species in genus: 1 sp
Etymology: (Greek: different turned, from erect inflorescence)

Native

A. virgata A. Gray

Perennial, nongreen, rhizomed, glabrous; roots brittle
Stem 0
Leaf scale-like
Inflorescence raceme-like, < 5 dm, white with red or maroon stripes, emerging from soil erect, persistent after seed dispersal; bracts < 3 cm; bractlets 0; pedicels not recurved
Flower: sepals generally 0, rarely 2–4; corolla cup-shaped, white, petals 5, free, concave; stamens 10, exserted, anthers dehiscent by short separate slits, maroon; nectary disk-like, lobes 10, short; ovary superior, chambers 5, placentas axile, style < 2 mm, stigma disk-like
Fruit: capsule, loculicidal
Seeds many per chamber, fusiform
Chromosomes: 2n=26
Ecology: Oak, mixed, or coniferous forests
Elevation: 75–3000 m.
Bioregional distribution: Northwestern California, High Cascade Range, High Sierra Nevada
Distribution outside California: to British Columbia, Idaho, Montana
Reference: [Wallace 1975 Wasmann J Biol 33:1–88]
Petals incorrectly considered sepals by some.

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bioregional map for ALLOTROPA%20virgata being generated
 
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Allotropa virgata
Retrieve dichotomous key for Allotropa
Overlay Consortium of California Herbaria specimen data by county on this map
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