Open Access

Table 1.

Number of stomata per 1 mm2 of leaf surface

Species stomata per 1 mm2 of leaf surface, pcs.
M ± m
Upper epidermis Lower epidermis
H. citrina 42.8 ± 3.1 59.4 ± 4.5
H. fulva - 53.0 ± 4.3
H. middendorfii - 72.5 ± 5.2
H. minor 31.6 ± 3.3 54.2 ± 10.3

Note. M is the arithmetic mean, m is the standard error.

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