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RUSCACEAE BUTCHER'S-BROOM FAMILY

Dale W. McNeal, except as noted

Perennial herb to shrub, rhizomed or not. Stem: leafy or scapose. Leaf: 2–15, basal or cauline, cauline clasping or sheathing, petioled [or reduced to scales, with short branches flattened, green, appearing leaf-like]. Inflorescence: terminal or axillary, panicle or raceme. Flower: unisexual or bisexual, generally white (± pink); perianth parts 4 or 6, fused or not, erect, nodding or pendent; stamens (4)6, ± fused to perianth, anthers attached near base; ovary superior, chambers 2–3, style 1, stigma ± 3-lobed. Fruit: berry, spheric, red, orange-red, or blue-black, or capsule, papery. Seed: 1–12.
26 genera, 475 species: northern hemisphere, South Africa, northern Australia; species in several genera cultivated as ornamental, house plants. Smilacina moved to Maianthemum. —Scientific Editor: Thomas J. Rosatti.

Key to Ruscaceae

MAIANTHEMUM FALSE LILY-OF-THE-VALLEY, FALSE SOLOMON'S SEAL
Rhizome creeping. Stem: erect, simple [0]. Leaf: alternate, generally ± clasping, lower reduced to sheathing scales. Inflorescence: terminal, raceme to panicle. Flower: perianth parts 4 or 6 in 2 petal-like whorls, white; stamens 4 or 6; ovary superior, chambers 2–3, style 1, stigmas 2–3. Fruit: berry. Seed: 1–3.
3 species: northern temperate. (Greek: May flower, from flowering season) [LaFrankie 2002 FNANM 26:206–210] Historically divided into 2 genera, Maianthemum, Smilacina (1. vs 1' in key); otherwise ± equal morphologically, unique chromosomally.
Unabridged references: [LaFrankie, J. V. 1986. Transfer of the species of Smilacina Desf. to Maianthemum Wiggers (Liliaceae). Taxon 35:584–589; Rudall P. J. et al. 2000. Systematics of the Ruscaceae/Convallariaceae: A combined morphological and molecular investigation. Bot. J. Linn. Soc. 134:73–92]

Key to Maianthemum

Previous taxon: Ruscaceae
Next taxon: Maianthemum dilatatum

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Sep 2 2014
Citation for this treatment: [Author of taxon treatment] 2013. Maianthemum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=9537, accessed on Sep 2 2014

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