Grímsson Friðgeir, van Valkenburg Johan L C H, Wieringa Jan J, Xafis Alexandros, Jacobs Bonnie F, Zetter Reinhard
Department of Palaeontology, University of Vienna, Vienna, Austria.
Naturalis Biodiversity Center, National Herbarium of The Netherlands, Leiden, The Netherlands.
Grana. 2018 Nov 20;58(2):99-113. doi: 10.1080/00173134.2018.1519033. eCollection 2019.
Three currently accepted species appear to produce four different pollen morphologies. and pollen share the same distinct reticulate sculpture, but produces three different pollen types (microreticulate, fossulate, and perforate). The pollen morphology suggests that and are sister taxa of the same intrageneric lineage. The pollen diversity observed in suggests (a) this taxon is unique regarding its pollen diversity despite being a non-heterostylous plant or (b) that circumscription of . as a species may well be in the need of redefinition.
目前公认的三个物种似乎产生了四种不同的花粉形态。并且花粉具有相同独特的网状纹饰，但产生了三种不同的花粉类型（微网状、具小凹和穿孔状）。花粉形态表明[物种名1]和[物种名2]是同一属内谱系的姐妹分类群。在[物种名3]中观察到的花粉多样性表明：(a) 尽管该分类群不是异型花柱植物，但其花粉多样性是独特的；或者 (b) 将[物种名3]作为一个物种的界定很可能需要重新定义。
