Melanthiaceae Key & Chart

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Melanthiaceae (Bunchflower Family) Key Key to species in Newfoundland and Labrador © Susan J. Meades, Flora of Newfoundland and Labrador (2019) 1a. Plants 1.5–4 dm tall, glabrous, with a terminal whorl of 3 broadly elliptic to obovate leaves; flower solitary, nodding; sepals 3, green, petals 3, white; stamens 6, filaments white, anthers lavender to pink; pistil 1, white, prominently 6-angled, styles 3, strongly recurved, stigmas extending along the inner surface of the styles; fruit a broadly ovoid pendant red berry; restricted in range to western insular Newfoundland. ........................................................................................ Trillium cernuum (nodding trillium) 1b. Plants 0.5–2 m tall, pubescent, with several alternate sheathing leaves; flowers numerous, in a tall, erect, branched panicle; tepals 6, yellowish-green to dark green, pubescent on the lower surface; stamens 6, filaments green, appressed against the ovary, anthers yellow; pistil 1, styles 3, stigmas extending along the inner surface of the styles; fruit an ovoid erect capsule; restricted in range to southwest Labrador (Wabush-Labrador City region). ........................................... Veratrum viride var. viride (green false hellebore) Melanthiaceae Comparison Chart Species: Trillium cernuum Veratrum viride var. viride nodding trillium green false hellebore 3, in a terminal whorl; blades several, alternate and sheathing the Leaves broadly elliptic to obovate, 5–15 stem; blades elliptic to ovate, 15–25 cm cm long, glabrous long, pubescent solitary, terminal, on a nodding numerous, in an open, many-branched Flowers peduncle, the flower hidden panicle, 30–70 cm tall beneath the leaves sepals 3, green; petal 3, white, tepals 6, green, 6–10 mm long, Perianth 15–25 mm long, strongly reflexed spreading, prominently veined Stamens 6, filaments white, anthers pink 6, filaments green, anthers yellow 1, white, 6-angled, with 3 1, green, styles/stigmas 3, spreading Pistil recurved styles/stigmas a broadly ovoid red berry, an oblong to ovoid capsule, Fruit to 3 cm across, pendant 2–3 cm across, erect .

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