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Key to families | Table of families and genera

This text currently parallels The Jepson Manual: Vascular Plants of California, Second Edition that is now available at the University of California Press.

Text appearing in blue on this page will not appear in the printed book; it will be displayed only on the Web. 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.

 

MONTIACEAE MINER'S LETTUCE FAMILY

John M. Miller, except as noted


Annual to perennial herb; generally fleshy.
Stem: 1–many, generally glabrous.
Leaf: simple, alternate or opposite.
Inflorescence: axillary or terminal; cyme, raceme, panicle, umbel, or flower 1.
Flower: bisexual, radial; sepals generally 2(9), free; petals (1)2–19, free or ± fused; stamens 1–many, epipetalous or not, anthers pink, rose, or yellow; ovary superior, chamber 1, ovules 1–many, placenta basal or free-central; styles (0)1–8, generally fused at base, branched.
Fruit: capsule, circumscissile or 2–3-valved.
Seed: 1–many, shiny or ± pebbly or sculptured, black or gray, generally with oil-filled appendage as food for ants.
± 22 genera, ± 230 species: generally temperate America, Asia, Australia, Eur, Kerguelen Is, New Zealand, s Africa, poorly represented in Eur; some cultivated (Lewisia, Calandrinia). [Ogburn & Edwards 2009 Amer J Bot 96:391–408] Details of flowers, seeds require 20× magnification. —Scientific Editor: Thomas J. Rosatti.
Unabridged references: [Applequist et al. 2006 Syst Bot 31:310–319; Nyffeler et al. 2008 Haseltonia 14: 26–36]
Unabridged note: May include Hectorellaceae.

Key to Montiaceae

1. Fr circumscissile, dehiscing near middle or below ..... LEWISIA

1' Fr 2–3-valved, dehiscing longitudinally from top

2. Stigmas 2–3; fruit 2–3-valved, cap-like

3. Petals 2–4; stamens 1–3, anthers pink, rose, or yellow ..... CALYPTRIDIUM

3' Petals 5; stamens 5–10, anthers yellow ..... CISTANTHE

2' Stigmas 3; fruit 3-valved, not cap-like

4. Cauline leaves alternate

5. Infl not 1-sided; petals red; ovules many; seeds 6–many ..... CALANDRINIA

5' Infl generally 1-sided; petals white to pink; ovules 3; seeds 1–3 ..... MONTIA (2)

4' Cauline leaves ± opposite

6. Cauline leaves generally 2, free, ± fused on 1 side, or fused into ± disk; ovules, seeds 3–6 ..... CLAYTONIA

6' Cauline leaves > 2, free; ovules 3, seeds 1–3 ..... MONTIA (2)

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