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Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
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Shrub, tree; generally dioecious or flowers bisexual and unisexual; resin clear, often weathering black, generally aromatic, latex milky or 0. Leaf: simple to ternate- or odd-pinnate-compound, alternate, deciduous or evergreen; stipules 0. Inflorescence: raceme or panicle; flowers generally many. Flower: generally unisexual, radial; sepals generally 5, base generally ± fused; petals 5, generally > sepals, free; (perianth parts 1–7 in Pistacia); stamens 4–7 or 10, vestigial in pistillate flowers; ovary superior, vestigial or 0 in staminate flowers, subtended by ± lobed, disk-like nectary, chamber generally 1, ovule generally 1, styles 1–3. Fruit: drupe-like, generally ± flat, sticky or not, hairs short or 0; pulp ± resinous, aromatic or not.
70+ genera, ± 850 species: tropics, warm temperate; some ornamental (Rhus, Schinus), cultivated for fruit (Anacardium, cashew; Mangifera, mango; Pistacia, pistachio). TOXIC: many genera produce contact dermatitis. [Yi et al. 2007 Syst Bot 32:379–391] —Scientific Editors: Bruce G. Baldwin, Thomas J. Rosatti.
Unabridged references: [Pell 2004 Ph.D. Dissertation, Louisiana State Univ, Baton Rouge; Cronquist et al. 1997 Anacardiaceae In: Intermountain Flora 3A:313–317; Wannan & Quinn 1991 Bot J Linn Soc 107:349–385; Wannan & Quinn 1990 Bot J Linn Soc 103:225–252; Ibe & Leis 1979 Bull Torrey Bot Club 106:140–144; Brizicky 1963 J Arnold Arbor 44:60–80]
Key to Anacardiaceae
Shrub, tree; dioecious or flowers bisexual and pistillate. Leaf: simple or compound, deciduous or evergreen, entire, toothed, or lobed. Inflorescence: panicle, terminal on short twigs, open to dense; flowers ± sessile. Flower: stamens 5; styles 3, free or ± fused. Fruit: spheric or ± flat, glabrous or glandular-hairy, generally ± red; pulp thin or thick, ± resinous.Key to Rhus
± 150 species: warm temperate. (Greek: ancient name for sumac) [Yi et al. 2004 Molec Phylogen Evol 33:861–879]
Unabridged references: [Burke & Hamrick 2002 J Heredity 93:37–41; Miller et al. 2001 Int J Plant Sci 162:1401–1407; Li et al. 1999 J Torrey Bot Soc 126:279–288; Cronquist 1997 In: Intermountain Flora 3A: 313–315; Wannan & Quinn 1991 Bot J Linn Soc 107:349–385; Wannan & Quinn 1990 Bot J Linn Soc 103:225–252; Brizicky 1963 J Arnold Arbor 44:60–80; Barkley 1937 Ann Missouri Bot Gard 24:265–498]
Unabridged note: 2 species with pinnately compound leaves native to eastern North America, Utah, cultivated in California: Rhus glabra L., smooth sumac (petioles, young stems glabrous), Rhus typhina L., staghorn sumac (petioles, young stems densely hairy).
Plant 2–10 m. Leaf: simple, evergreen; petiole 10–30 mm; blade 3–8 cm, 3–8 cm wide, wide-ovate to -elliptic, entire, ± leathery, generally folded along midrib, tip acute to acuminate. Inflorescence: branches stout; bractlets < 2 mm. Flower: sepals red, ciliate; petals white to ± pink. Fruit: 6–8 mm diam, glandular-hairy, ± red.
Canyons, generally s-facing slopes, chaparral; < 1300 m. Southwestern California; Arizona, Baja California. Cult elsewhere. Hybridizes with Rhus integrifolia. Mar–May [Online Interchange]
Previous taxon: Rhus integrifolia
Next taxon: Schinus
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Jul 29 2014
Citation for this treatment: [Author of taxon treatment] 2013. Rhus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=41191, accessed on Jul 29 2014
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© 2002 Lynn Watson
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