Araceae
Biarum bovei Blume
SUMMARY
Tuber globose, slightly compressed dorsally, 1.5–3.5 cm in diam., with few offsets. Leaves 3–12, hysteranthous, bases encased by several 4–11 × 1–1.5 cm sub-fleshy, later papery, cataphylls, these pale green to dirty white, drying to off-white; petiole 5–9 cm × 3–5 mm, adaxial surface slightly to rather strongly channeled distally, expanded proximally into a wide membranous wing, midgreen, wing paler; leaf lamina lanceolate-oblong to ovate-lanceolate with 6–8 primary lateral veins per side, 5–10 × 1.5–4 wide, margins smooth to undulate, more rarely crispulate, mid-green. Inflorescence appearing in late autumn, 7–19cm long, strongly malodourous of horse dung. Peduncle 4–7 cm long, encased by numerous 5–9 × 1–1.5 cm sub-fleshy, later papery, cataphylls, these pale green, dull straw-yellow on drying; spathe limb lanceolate to linear-lanceolate, 5–14.5 × 1.75–3 cm, margins flat and ± smooth, exterior dull green with some purple staining or spotting, especially towards the margin, interior deep purple-brown; spathe tube globose-cylindric to globose, margins connate for c. ¼ of their length, 2.5–4 × c. 1.5 cm in diam., exterior off-white, dull green with slight purple staining where exposed, interior pale green, heavily stained purple at the base. Spadix 9–14 cm long; spadix appendix narrowly fusiform, 6–10 cm × 2.5–3 mm, deep purple. Staminate flowers in a zone 8–12 × 3–4 mm, cream. Interstice 1.5–2 cm × 2–3 mm, cream, stained purple in the lower quarter. Staminodes few to many, clustered in a zone c. 1 cm long directly above the pistillate flowers; bristles filiform, 5–15 mm long cream, tinged purple basally. Pistillate flowers in a hemispherical cluster c. 9 × 6 mm, ovaries pale cream, style 1.5 × 0.25 mm, purple, stigma capitate, purple. Infructescence a globose cluster of c. 40 pyriform-globose berries 2.5–3 cm in diam.; berries c. 7 × 4 mm, pale lilac-grey with purple tinges when ripe; seeds globose, c. 4–4.5 mm in diam., pale brown, testa reticulate.