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. 2018 Dec 17;22(2):302–312. doi: 10.1111/ele.13191

Figure 2.

Figure 2

Continuous variation in Alloteropsis semialata leaf anatomy, but distinct division among C3, C3‐C4 and C4 types. Ratios of mesophyll (M) to bundle sheath (BS) area of individual accessions of C3 (blue circles), C3‐C4 (green circles) and C4 (solid red circles) plants, ranked by M:BS value. n = 50. Lines delineating M:BS ratios that distinguish C3 from C3‐C4 (green) and C3‐C4 from C4 (red) are shown. For C4 individuals, M:BS ratios are also calculated in the absence of minor veins (open red circles).