Table 1.
Sampling information of the species used in the phylogenetic analysis of Carex borealifujianica.
Table 2.
Collection information of ten populations used to morphological analysis.
Table 3.
Variation of the diagnostic characters of the ten populations studied.
Fig 1.
Principal component analysis of ten populations based on analysis of 17 diagnostic characters from 80 individuals.
Populations names and detailed information follow Table 1.
Table 4.
Diagnostic characters distinguishing Carex borealifujianica from C. hebecarpa and C. ligulate.
Fig 2.
Scanning electron micrographs of the utricle micromorphology of seven species in Carex sect.
Occlusae. A, E, Carex borealifujianica; B, G, C. ligulata; C. C. hebecarpa; D, F, H, C. maubertiana; I, L, C. polycephala; J, M, O, C. poculisquama; K, N, P, C. pseudoligulata. A–D, I–K, overview and shape (scale bar = 1 mm); E, F, L–N, surface indumentum (scale bar = 100 μm); G, H, O, P, beak (scale bar = 100 μm).
Fig 3.
Scanning electron micrographs of the achene micromorphology of seven species in Carex sect.
Occlusae. A, B, Carex borealifujianica; C, D, C. ligulata; E, F, C. maubertiana; G, C. hebecarpa; H, C. pseudoligulata; I, J, C. polycephala; K, L, C. poculisquama. A, C, E, I, K, overview and shape (scale bar = 1 mm); B, D, F–H, J, L, epidermal cell shape (scale bar = 10 μm).
Fig 4.
Maximum likelihood (ML) tree from the combined data (ETS, ITS, matK and trnL-F), showing the relationship of Carex borealifujianica.
Values above branches represent bootstrap values (BS) for maximum likelihood and Bayesian posterior probabilities (PP) respectively, and (-) indicates the BS<50% or PP<0.5.
Fig 5.
A, habit; B, indumentum on leaf sheath; C, staminate scale; D, pistillate scale; E, utricle; F, achene.
Fig 6.
Distribution map of Carex borealifujianica, C. hebecarpa and C. ligulata.
(Map source: https://www.webmap.cn/main.do?method=index; the distribution information is from collection notes of the specimens stored in ANUB, CDBI, HHBG, HNWP, HTC, IBK, KUN, LBG, NAS, PE, SZ, WUK and ZM).