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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.



Allan J. Bornstein

Shrub, small tree, generally aromatic, evergreen or deciduous; generally monoecious or dioecious; roots generally with nitrogen-fixing bacteria; hairs generally both nonglandular, thread-like and glandular, peltate. Leaf: simple, alternate, entire to pinnately lobed, resin-dotted; stipules generally 0. Inflorescence: spike, catkin-like, axillary; staminate, pistillate separate. Flower: generally unisexual, small; perianth generally 0. Staminate flower: subtended by 1 bract, 0 [1–4] bractlets. Pistillate flower: subtended by 1 bract, 2 or 4–6[3(8)] bractlets; ovary superior [to ± inferior], ovule 1, style 1, stigmas 2, short. Fruit: generally drupe or nut-like, small, rough or smooth, waxy or not, sometimes winged or bur-like from fused bractlets.
4 genera, ± 45 species: generally temperate, subtropics fruit of some Morella boiled to make fragrant wax. [Carlquist 2002 Aliso 21:7–29] Myrica as treated in TJM (1993) split into 2 genera based on Wilbur 1994 Sida 16:93–107. —Scientific Editor: Thomas J. Rosatti.
Unabridged references: [Bornstein 1997 FNANM 3:429–434]
Unabridged note: Comptonia of eastern North America, Canacomyrica of New Caledonia each have 1 sp.; Myrica has 2 species

Key to Myricaceae

1. Terminal buds present; leaves evergreen, shiny, hairs 0 or soft, shaggy adaxially along midrib; flowers unisexual (pls monoecious) or bisexual; staminate bract < stamens; pistillate bractlets 4–6, not enlarging, not spongy in fruit, not adherent to fruit; fruit with fleshy papillae, pubescent, ± spheric, generally with waxy coating drying white to gray ..... MORELLA

1' Terminal buds 0; leaves deciduous, ± dull, hairs soft, shaggy abaxially, adaxially; flowers unisexual (pls dioecious); staminate bract > stamens; pistillate bractlets 2, enlarging, spongy in fruit, adherent to fruit; fruit not papillate, glabrous but generally dotted with minute, ± orange resin glands, generally ovoid, ± flat, without waxy coating ..... MYRICA


Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, [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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