Anatomy Anatomical features of the mantle Anatomy of the mantle in longitudinal section

anatomy mantle longitudinal section mantle thickness {apart from tip}

unit: µm

The inner delimitation of the mantle in longitudinal section is indicated either by tannin cells, if those are present (A), or by the cortical cells (B). Sometimes remnants of root calyptra cells (= root cap cells) can be incorporated within the inner parts of the mantle or they are directly adjacent to those hyphae enveloping Hartig-net-like the outermost walls for the root cells (C); remnants of calyptra cells as well as tannin cells can occur together as well (D). The outer delimitation of the mantle is quite often more difficult to discern; this is especially true of very loosely woven mantles, where there is no distinct borderline between the mantle and the emanating hyphae (E). In some cases, however, the outer delimitation is rather distinct (F) or even strictly defined (C). Definitely delineated mantles are not difficult to take measurements of. In the other cases it is often a matter of experience to find that position, where the somewhat more densely woven mantle intergrades into the looslier portion formed by emanating hyphae. In the latter, a rather extended range of measurements will be necessary to be noted, e.g. (5-)10-30(-50) µm. But such measurements are not very essential, since especially very loosely woven mantles have only very limited evidence to distinguish ectomycorrhizae. The values in parantheses stand for exceptional dimensions. However, they cannot be used for determination with DEEMY.
A range of values should be determined, e.g. 15-25(-45) µm; the value in parantheses stands for an exceptional dimension. (For the determination process with DEEMY the exceptional values cannot be included.)

A	B	C
D	E	F

– Character listing –