中文名（Chinese Name）：南蛇棒
学名（Scientific Name）：Amorphophallus dunnii Tutcher
英文名（English Common Name）：
别名（Chinese Common Name）：芋头，蛇枪头
异名（Synonym）：Amorphophallus mellii Engl.
科属（Family & Genus）：天南星科（Araceae）磨芋属
形态特征（Description）：块茎扁球形，厚2-8厘米，直径4.5-13厘米，顶部扁平，几不下凹，密生分枝肉质根。鳞叶多数，线形，膜质，内面的长10厘米，宽1厘米。叶柄长50-90厘米，粗1厘米，干时绿白色，饰以暗绿色小块斑点。叶片3全裂，裂片离基10厘米以上2次分叉，小裂片互生，基生小裂片椭圆形，长7-8厘米，宽31-4厘米，先端骤狭渐尖，基部楔形，一侧稍下延；顶生2个小裂片倒披针形或披针形，锐尖，基部楔形，一侧下延，长14－18厘米，宽3-6厘米，表面绿色，背面淡绿色，其下两小裂片外侧极下延，下延部分联合成长4厘米，宽2厘米的翅，侧脉弧曲上升，集合脉距叶缘3-8毫米。花序柄长23-60厘米，颜色同叶柄。佛焰苞绿色、浅绿白色，干时膜质，长卵形或椭圆形，长12-26厘米，宽14厘米，下部席卷，上部舟状展开，内面基部紫色，余黄绿色。肉穗花序短于佛焰苞，长8-19厘米，具短梗或否，雌花序长1.5-3厘米，粗1-3厘米，基部稍狭，雄花序长1.4-4.5厘米，粗1-3厘米；附属器长圆锥形或纺锤形，绿色，黄白色，长4.5-14厘米，中下部粗1.5-6厘米，中部以上渐狭，先端钝圆。花药无柄，圆柱形，长1毫米；子房倒卵形，长1-2.5毫米，先端渐狭为长0.3-0.5毫米的花柱，柱头盘状，微2-3-4一浅裂。浆果蓝色，种子黑色。花期3-4月，果7-8月成熟。
分布（Distribution）：产湖南、广西、广东及沿海岛屿，云南东南部，生于海拔220-800米的林下。
用途（Use）：
引自中国植物志英文版FOC | Family List | FOC Vol. 23 
Amorphophallus dunnii Tutcher, J. Bot. 49: 273. 1911.
南蛇棒 nan she bang  | Araceae  | Amorphophallus
Amorphophallus mellii Engler; A. odoratus Hetterscheid & H. Li.
Tuber dark brown, subglobose or depressed globose, to 10 cm high, to 12 cm in diam., developing numerous offsets annually, these shortly narrowly fusiform, 1-3 × ca. 1 cm. Leaf solitary; petiole green or grayish green with numerous elongate, confluent, pale green or brownish green spots, 30-60 × 1-1.5 cm, glabrous; leaf blade to ca. 100 cm in diam., rachises winged throughout; leaflets dark green adaxially, elliptic-lanceolate, 3-21 × 1.5-7 cm, acuminate. Inflorescence solitary, long pedunculate, producing a scent of fresh carrots; peduncle colored as petiole, 20-60 cm, 0.7-1.8 cm in diam. at base. Spathe shortly convolute at base, outside bright pale green, basally with rounded white spots, these distally grading to whitish green, inside base or a larger patch reddish purple, remainder and limb as outside but paler, broadly ovate, strongly concave, 8.5-24 × 8.5-23 cm, base within ridged-verruculose, apex acute, overarching spadix. Spadix stipitate or rarely nearly sessile, slightly shorter than spathe, 8-20 cm; stipe colored as peduncle but much paler, 0.5-1.5 cm; female zone cylindric, distal part occasionally broadened, 0.5-2.5 × 1-2.2 cm, flowers congested; ovary pale green, depressed, angulate in cross section, 1-1.5 mm high, 2-3 mm in diam., 2- or 3-loculed, with 1 basal ovule per locule; style pale green, 0.5-1 × 0.8-1 mm; stigma yellowish, flattened, ca. 1 mm high, ca. 2 mm in diam., 2- or 3(or 4)-lobed, oval or triangular in cross section, scabrous-verrucate, lobes obtuse; male zone broadly fusiform, 1.8-3 × 1.3-3.5 cm, flowers congested; male flowers consisting of 4 or 5 stamens; stamens ca. 3 mm; filaments ca. 1.5 mm, basal 1/3 connate; anthers butterfly-shaped in cross section, ca. 1.5 × 1.5-1.8 mm; pores elongate, apical but near margin, sometimes connected by an eccentric groove; pollen striate; appendix ivory-white, narrowly to broadly conic, usually slightly dorsiventrally compressed, occasionally substipitate, variable, hollow, 3-14 cm, 1.3-4.5 cm in diam. near base, glabrous or entirely echinate or verruculose, or only distal 1/3 so, base constricted and sometimes grooved, apex subacute or obtuse. Infructescence: fruiting zone cylindric, ca. 12 × 5 cm. Berries crowded, shortly stalked, glossy dark blue, elongate, to ca. 1.8 × 1.5 cm.
● Guangdong, Guangxi.

（责任编辑：徐晔春）