12薯蓣目Dioscoreales

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人名A. D. Dioscorides(希)+人名后缀ea

5科28属916种

43沼金花科Nartheciaceae-5属35种

44蒟蒻薯科Taccaceae-1属12种

45水玉杯科Thismiaceae-5属55种

46水玉簪科Burmanniaceae-8属99种

47薯蓣科Dioscoreaceae-9属715种

Givnish et al. (2018):

PPA II:

  1. ⁉️Nartheciaceae最基部科,但mt结果支持sister to Pandanales🤔
  2. ⚠️除Nartheciaceae以外的科的科间关系问题的核心是科的界限,属的归属近几年有很大的变动,导致科间关系一直不稳定:
    • Geomitra[水玉盔属-水玉簪科-薯蓣目], 原Thismiaceae, 现Burmanniaceae
    • Afrothismia[水玉瓮属-水玉杯科-薯蓣目], 一直在Thismiaceae, 但sister to [Taccaceae + rest of Thismiaceae] (but c.f. Yokoyama et al. 2007).
    • Trichopus[丝柄花属-薯蓣科-薯蓣目]和Stenomeris[多子薯蓣属-薯蓣科-薯蓣目], 原Thismiaceae, 现Dioscoreaceae
  3. ✅薯蓣目科间关系结果:
    • [Burmanniaceae [Taccaceae + Dioscoreaceae s.l.]],Viruel et al. (2015) and Z.-D. Chen et al. (2016)
    • [Burmanniaceae [Nartheciaceae [Dioscoreaceae [Taccaceae + Trichopodaceae[丝柄花科, 现为薯蓣目-丝柄花亚科Subfam. Trichopodoideae, 含2属: 丝被藤属Avetra H. Perrier和丝柄花属Trichopus Gaertn.]]]]],Lam et al. (2016)
    • [Nartheciaceae [Burmanniaceae [Dioscoreaceae [Taccaceae + Thismiaceae]]]],Lam et al. (2018) and Givnish et al. (2018b) ,目前支持这种结果