Montiaceae
English: Miner's lettuce family.
Clades: Portulacales; Caryophyllidae; Asteranae; Angiospermae; Plants.
Botany: 14 genera; 500 species; herbs, shrubs; cosmopolitan.
Taxonomy
Montiaceae sensu Nyffeler & Eggli, 2010. Most members of Montiaceae were formerly placed in Portulacaceae. Portulacaeae recently had only Portulaca included. Later it is fused with Didieraceae.
Plant theory
In the Plant theory Montiaceae is treated as a separate family in Portulacales. It is placed in Subphase 3 for there is confirmation form cases.
Genera: Calandrinia, Calyptridium, Cistanthe, Claytonia, Hectorella, Lenzia, Lewisia, Lewisiopsis, Lyallia, Montia, Montiopsis, Parakeelya, Phemeranthus, Philippiamra, Schreiteria.
Taxonomy
1. Montioideae
1A. Montieae
1A1. Montiinae
1A1a. Montia
1A1b. Claytonia
1A2. Lewisia
1A3. Lewisiopsis
1B. Calandrinia
1C. Hectorelleae
1C1. Hectorella
1C2. Lyallia
1D. Rumicastrum
2. Cistantheae
2A. Cistanthe
2B. Montiopsis
2C. Calyptridinae
2C1. Lenzia
2C2. Thingia
2C3. Calyptridium
2C4. Philippiamra
3. Phemerantheae
3A. Phemeranthus
3B. Schreiteria
Botany
Flowers:sessile or pedicellate, usually bisexual, actinomorphic.
Sepals: 2–9, often dry and persistent in fruit.
Petals: 4–5 or up to 19 (Lewisia), usually free but sometimes basally connate.
Stamens: as many as petals or numerous (to 100).
Ovary: superior, 1-locular with 2–8 united carpels
Fruit: 2–3-valved capsules, valves persistent (rarely deciduous) or basally circumscissile, or 1-seeded utricles, dehiscent or not, or 1–2-seeded indehiscent capsules disintegrating with time, sometimes with deciduous calyptra.
Seed: often minutely papillate, with strophiole or elaiosome.