Table 2. Comparisons of the achenes and pollen grains among Ixeridium dimorphifolium (two samples) and I. beauverdianum. Traits/speciesIxeridium dimorphifolium (Suichang)I. dimorphifolium (Qingyuan)I. beauverdianumAcheneshapenarrowly fusiform, slightly compressedlinear-fusiform, slightly compressedfusiform, slightly compressedlength4.98 ± 0.42 mm5.54 ± 0.60 mm4.72 ± 0.34 mmsurfacefinely spiculate, with ribs finely spiculatefinely spiculate, with ribs finely spiculatefinely spiculate, with ribs finely spiculateribwith spicule similar to surfacewith spicule similar to surfacewith spicule longer than those on surfaceapexgradually narrow to a beakgradually narrow to a beakabruptly narrow to a beakPollenshapetricolporate, sphericaltricolporate, sphericaltricolporate, sphericalsize27.55 ± 3.60 μm26.70 ± 2.84 μm24.62 ± 1.95 μmsurfaceechinophateechinophateechinophate

Published as part of Lu, Yi-Fei, Xu, Yue-Liang, Xie, Wen-Yuan, Zhang, Hong-Wei, Zheng, Zi-Hong, Cai, Xin & Jin, Xiao-Feng, 2021, Two new species and a new combination from Zhejiang, East China, pp. 111 in PhytoKeys 184 on page 111, DOI: 10.3897/phytokeys.184.73327