Tacca ampliplacenta (Taccaceae), a New Species from Yunnan, China
Tacca ampliplacenta (Taccaceae), a New Species from Yunnan, China
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DOI：
10.5735/085.045.0412
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发表时间：
2008-08
期刊：
影响因子：
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通讯作者：
Ling Zhang;Qing‐Jun Li
中科院分区：
文献类型：
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作者：
Ling Zhang;Qing‐Jun Li
紫薯Zhang &.问：描述了云南省玉蜀黍科玉蜀黍属一新种J. Li sp. nova。它的特征如下：叶柄、花序梗和花是红葡萄酒色而不是深紫色; chantrieri，但果实有不同的膨胀胎座，填充果腔;果序的柄富含柔性纤维，非常坚韧。与同域分布的T. chantrieri（4月至6月）。这种物候差异可能在这两个物种之间的生殖隔离中起着重要作用。
Tacca ampliplacenta L. Zhang &. Q.-J. Li sp. nova (Taccaceae) is described and illustrated from Yunnan province, China. It is distinguished by the following characters: the petioles, peduncles, and flowers are red wine coloured instead of dark purple; the bracts are very similar to T. chantrieri, but the fruits have different intumescent placentas, which fill the fruit cavity; and the stalk of the infructescence is rich in flexible fibre and very tough. Its flowering period (July–August) is rather late as compared with that of the sympatric T. chantrieri (April–June). This phenological difference may play an important role in reproductive isolation between the two species.