Arisaema brucei (Araceae)
Plants dioecious. Tuber subglobose, 1.8–2cm in diam. Cataphylls not seen. Leaf solitary; petiole 24–30cm, glabrous, proximal 5–7cm sheathing into pseudostem; leaf blade 3-foliolate; leaflets subsessile, green with purple margins, glabrous, margins subcrenulate or crenate; terminal leaflet elliptic, ca. 11 × 4–6cm, base cuneate, apex acuminate; lateral veins 12–15 per side, collective vein 0.5–1.5mm from margin; lateral leaflets lanceolate, oblique, ca. 11 × 3.3–3.5 cm, base cuneate, apex long acuminate. Peduncle shorter than petioles, 12.5–16cm. Spathe suberect, 12–13cm; tube brown with whitish stripes, obconic, 4.5–5 × 1.7–2cm, throat margins obliquely truncate, slightly recurved, not auriculate; limb slightly incurved, dark brown with whitish stripes, oblong, 7.5–8 × 2.4–3cm, base not constricted, apex acuminate with white reticulate stripes. Spadix unisexual; male zone cylindric, 1.3–1.7cm; synandria lax, stipitate; filaments 1.5–2mm; anthers 2–4, dehiscing by horseshoe-shaped slits; appendix distally curved, cylindric, ca. 6cm in total, proximal 2.5–3cm suberect, ca. 3mm in diam., abruptly swollen toward base, base conic, 4–5mm in diam., truncate, with stipe ca. 4.5 × 1.3mm, apex attenuate, obtuse. Female spadix unknown.
This material was reprinted with permission from the Missouri Botanical Garden Press, St. Louis, and Science Press, Beijing.
This material was reprinted with permission from the Missouri Botanical Garden Press, St. Louis, and Science Press, Beijing.
Evergreen broad-leaved forests slightly disturbed by roads.