In this paper, Aristolochia involuta and A. hainanensis subsp. yingjiangensis, two new taxa from Yunnan, China, are described and illustrated. The former is similar to A. bambusifolia in the calyx limb, but differs in the flower size and leaf shape. The latter differs from A. hainanensis by its leaf shape, fruit size and distribution. And we also clarify the flower character of Aristolochia obliqua.
A new Alocasia species, Alocasia yunqiana, is described and compared with its morphologically related taxa. The novelty is characterized by an oblong-naviculiform-shaped spathe-limb that is strongly hooded and slightly glaucous to glossy during its entire anthesis, a spadix with a sterile interstice and an appendix that are much shorter and thinner than the staminate zone, as well as the dimorphic synandroidia. Detailed information containing description, colored plates and illustration are provided herein.
A species new to science, Typhonium sagaingense from Sagaing Region, Myanmar, is herein described and illustrated. It is similar to T. albidinervum and T. filiforme but differs in having following characters: trifoliolate leaves, spadix slightly shorter than spathe, fewer yellow staminodes arranged in one whorl and pink appendix. Detailed descriptions, colour plates, illustration, distribution, phenology and ecology of the new species are provided, including a key to all Typhonium occurring in Myanmar.
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