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FOC | Family List | FOC Vol. 23 | Araceae | Arisaema

60. Arisaema lobatum Engler, Bot. Jahrb. Syst. 1: 487. 1881.

花南星 hua nan xing

Arisaema lobatum var. latisectum Engler; A. lobatum var. rosthornianum Engler; A. onoticum Buchet; A. pictum N. E. Brown ex Hemsley.

Plants dioecious. Tuber bluish green outside, globose, 2-4 cm in diam. Cataphylls 3, brown, usually with reddish spots, 15-20 cm, apex acute or obtuse. Leaves 1 or 2; petiole greenish or olive-green with purple spots, 17-35 cm, proximal 1/3-1/2 sheathing into pseudostem; leaf blade 3-foliolate, pale greenish with pink raised veins abaxially, green with pale green veins adaxially; central leaflet with petiolule 1.5-5 cm, blade oblong or elliptic, 8-22 × 4-10 cm, base narrowly attenuate or obtuse, apex acuminate; lateral leaflets sessile, oblique, oblong, 3-23 × 2-8 cm, outer base auriculate and rounded. Inflorescence unfolded before leaves; peduncle nearly as long as petiole, but usually shorter. Spathe pale purplish or pale olive-green with purple stripes; tube funnelform, 4-7 × 1-2.5 cm, throat not auriculate, obliquely truncate, narrowly recurved or not; limb incurved or nearly erect, usually with whitish stripes inside, broadly lanceolate or ovate, 4-7 × 2.5-3 cm, constricted to base, apex acuminate, usually with a tail 3-5 cm. Spadix unisexual; female zone cylindric or subglobose, 1-2 cm; ovary green, obovoid; style short; stigma disciform; male zone cylindric, 1.5-2.5 cm; synandria lax; anthers 2 or 3, stipitate; thecae violet, ovoid, dehiscing by apical pore. Appendix erect, pale green to whitish green, cylindric, middle slightly constricted, base truncate and stipitate, apex obtuse; stipe 6-8 mm. Infructescence nodding. Fl. Apr-Jul. 2n = 28*, 56*, 84*.

● Forests, thickets, grassy slopes; 600-3300 m. Anhui, Chongqing, Gansu, Guangxi, Guizhou, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Shanxi, Sichuan, Yunnan, Zhejiang.


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Photos by The Biodiversity of the Hengduan Mountains Project  
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