Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora.

ORCHIDACEAE

ORCHID FAMILY

Dieter H. Wilken and William F. Jennings

Perennial, terrestrial in CA, some nongreen, generally from rhizomes
Leaves linear to ± round or scale-like, generally sessile
Inflorescence: generally raceme or spike, bracted
Flower bisexual, bilateral, sometimes spurred; sepals generally 3, generally petal-like, generally free, uppermost generally erect; petals 3, lowest different ("lip"); stamen generally 1, fused with style and stigma into column, pollen generally sticky, generally removed as sessile anther sacs; ovary inferior, generally twisted 180° (so lip appears to be lowest perianth segment), 1-chambered, placentas 3, parietal; stigmas 3, generally under column tip
Fruit: capsule
Seeds very many, minute
Genera in family: ± 800 genera, ± 18,000 species: especially tropical (worldwide except deserts). Many cultivated for ornamental, especially Cattelya, Cymbidium, Epidendrum, Oncidium, Paphiopedalum; Vanilla planifolia fruits used as source of food flavoring
Reference: [Luer 1975 Orchids US and Can, NY Bot Garden; Coleman 1995 Wild Orchids of California, Cornell Univ.]
Nongreen plants derive nutrition through fungal intermediates.

CEPHALANTHERA

Plants generally green (white in North America sp.)
Stem ± scapose
Leaves mostly scale- or bract-like
Inflorescence: raceme; flower bract < flower, scale-like
Flower: sepals free, lower generally ascending, ± curved over column and lip; lateral petals generally > lip; lip generally narrowed at middle, concave or folded below middle, tip ± spreading to reflexed; column subcylindric, anther head-like, short-stalked
Fruit generally erect
Species in genus: ± 15 species: especially Eurasia
Etymology: (Greek: head-like anther)
Some species ± subterranean; closely related to Epipactis.

Native

C. austiniae (A. Gray) A. Heller

PHANTOM ORCHID

Plant 20–55 cm, white, becoming yellowish or brown
Leaves 3–6 cm, sheathing
Flower white; sepals 12–20 mm, elliptic to oblanceolate, acute; lip folded lengthwise and lobed below middle, reflexed above middle, with a yellow, papillate spot; column 6–9 mm; anther stalk ± hinge-like
Ecology: Decomposed litter of rich soil in mixed-evergreen or coniferous forest
Elevation: 300–2200 m.
Bioregional distribution: Northwestern California, Cascade Range, High Sierra Nevada, San Francisco Bay Area, n Outer South Coast Ranges, San Bernardino Mountains, Peninsular Ranges
Distribution outside California: to British Columbia, Idaho
Synonyms: Eburophyton a. (A. Gray) A. Heller

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bioregional map for CEPHALANTHERA%20austiniae 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 Cephalanthera austiniae
Retrieve dichotomous key for Cephalanthera
Overlay Consortium of California Herbaria specimen data by county on this map
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