Quercus INDEX

Table 2. Stomatal density (SD), Epidermal cell density (ED) and stomatal index (SI) of modern Quercus kelloggii leaves, assigned to light regime during growth by degree of undulation, and p-values from a pairwise comparison using a nested mixed-model ANOVA based on a general linear model.

Figure 6. Stomatal density (SD A), epidermal cell density (ED B) and stomatal index (SI C) of 61 modem Quercus kelloggii leaves collected in California in 2003 (Fig. 1). Leaves were assigned to sun, shade or neutral type by degree of undulation of the epidermal cell walls (e.g., Kiirschner 1997). Nested mixed-model ANOVA showed significant differences for SD (p = 0.001) and SI (p = 0.000), but not ED (p = 0.217). Paired comparison of the means of stomatal density and index in a nested mixed-model ANOVA showed significant differences for SD and SI between sun and shade leaves (p < 0.01 Table 2). Error bars represent 1 S.E.M.

Also sometimes given incorrectly as quercitin. Quercitrin is the glucoside (3-L-rhamnoside Colour Index, 1971, Cl 75720/Natural Yellow 10) in Quercus velutina Lam. bark. The Colour Index lists quercetin imder Cl 75670/Natural Yellow 10,13/Natural Red 1. 

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