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6 results for “Heliosperma”
FIGURE 2 in Low and high elevation Heliosperma species (Caryophyllaceae)-insight based on chromosome number, pollen characters and seed micromorphology
FIGURE 2. Chromosome number and pollen characters in Heliosperma spp. Somatic chromosome number (2n = 26) in root meristematic cell of H. pusillum subsp. chromodontum (a), pollen size, shape and viability after Alexander staining in H. macranthum (green—non-viable and purple—viable pollen grains inserted) (b).
FIGURE 5 in Low and high elevation Heliosperma species (Caryophyllaceae)-insight based on chromosome number, pollen characters and seed micromorphology
FIGURE 5. Factorial analysis of mixed data (FAMD) of seeds characters and hierarchical clustering on its principal components (HCPC). Distribution of the quantitative variables (a). Distribution of the qualitative variables (b); 2-4rows—number of rows in crest; 1- 2chambers—number of hilum chambers; marginal/middle—hilum location; brown/black—colour of seed; present/lack—waxes in hilum chambers; matt/shiny—surface type. Variation of elevation variable (c). Variation of habitat variable (numbers correspond to NATURA 2000 codes) (d). Five clusters of species identified by Hierarchical Clustering on Principal Components (HCPC) (e). ALP—H. alpestre; MAC—H. macranthum; RET—H. retzdorffianum; NIC—H. nikolicii; OLI—H. oliverae; PUS—H. pusillum subsp. pusillum; ALB—H. pusillum subsp. albanicum; MARK—H. pusillum subsp. markgrafii; MON—H. pusillum subsp. monachorum; CAN—H. pusillum var. candavicum; CHROM—H. pusillum subsp. chromodontum.
FIGURE 4 in Low and high elevation Heliosperma species (Caryophyllaceae)-insight based on chromosome number, pollen characters and seed micromorphology
FIGURE 4. Seed microstructure in Heliosperma spp. a0–a3 and b0–b3 general seed view, c0–c3 view of cells near crest (dorsal view), d0–d3 view of the cells near the hilum (ventral view), e0–e3—view of the hilum. a0–e0—H. macranthum, a1–e1—H. pusillum subsp. chromodontum, a2–e2—H. retzdorffianum, a3–e3—H. pusillum ssp. markgrafii. Bars in a0–a3 = 500 µm, b0–b3 = 250 µm, c0–c3, d0–d3, e0–e3 = 30 µm.
FIGURE 3 in Low and high elevation Heliosperma species (Caryophyllaceae)-insight based on chromosome number, pollen characters and seed micromorphology
FIGURE 3. Capsules of Heliosperma macranthum (a) and H. retzdorffianum (b, c). Note seeds sticked to the pubescent plants (arrows in c).
FIGURE 1 in Low and high elevation Heliosperma species (Caryophyllaceae)-insight based on chromosome number, pollen characters and seed micromorphology
FIGURE 1. Map of sampled Heliosperma species in Albania, North Macedonia and Kosovo.
Data from: Natural selection drives parallel divergence in the mountain plant Heliosperma pusillum s.l.
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