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Key to families | Table of families and genera

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.

 

CERCOCARPUS MOUNTAIN-MAHOGANY

Brian Vanden Heuvel & Richard Lis


Shrub, small tree, evergreen. Stem: trunk < 80 cm diam; bark generally gray to red-brown; twigs short. Leaf: generally clustered, simple; stipules deltate to lanceolate, generally deciduous; blade ± thin to leathery, entire to toothed. Inflorescence: clusters, flowers 1–18. Flower: hypanthium funnel-like, tube persistent in fruit, rim cup-like, deciduous, bractlets 0; petals 0; stamens 10–46, in ± 3 rows on hypanthium rim, anthers glabrous or hairy; pistil 1, free from hypanthium tube, ovary superior, 1-ovuled, style terminal, persistent in fruit, straight or twisted in age, plumose. Fruit: achene, cylindric, hairy, included in hypanthium tube.
11 species: western North America, Mexico. (Greek: tailed fruit) [Lis 1992 Int J Plant Sci 153:258–272]

Key to Cercocarpus

1. Leaf blade entire; anthers glabrous ..... C. ledifolius

2. Leaf blade generally 3–10 mm, margin inrolled to midrib; plants highly branched ..... var. intricatus

2' Leaf blade 10–30 mm, margin flat to inrolled but not to midrib; plants moderately branched

3. Leaf oblanceolate to lance-elliptic, (3)9(11) mm wide, abaxially glabrous to sparsely woolly, midrib, veins visible ..... var. intermontanus

3' Leaf narrow-lanceolate, 2–5(7) mm wide, abaxially densely woolly, midrib, veins obscure ..... var. ledifolius

1' Leaf blade toothed to crenate; anthers hairy

4. Leaf leathery, abaxially white-woolly — s Channel Islands (Santa Catalina Island) ..... C. traskiae

4' Leaf not leathery, abaxially ± sparsely hairy

5. Leaf thin, abaxial areoles glabrous — Peninsular Ranges (Riverside, San Diego cos.) ..... C. minutiflorus

5' Leaf thin to thick, abaxial areoles sparsely hairy ..... C. betuloides

6. Leaf blade generally 10–27(40) mm, < 15 mm wide ..... var. betuloides

6' Leaf blade generally (20)27–70 mm, > 15 mm wide

7. Leaf wide- to oblong-ovate, base rounded; flowers, fruits generally 1–6(12) ..... var. blancheae

7' Leaf obovate, base tapered; flowers, fruits 1–3 ..... var. macrourus

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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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