Translations:Benutzer:Arian/Klett-Mini-Test/1627/en

The Aerial Shoot and the Silica Process

The infertile shoot of the field horsetail, striving upward into air, warmth and light, is stem through and through. True foliage leaves are absent; only rudimentary leaf-formations in the form of inconspicuous collar-like protective sheaths, grouped into whorls, lie at the base of the stem-joints. The ribbed stem-joints of the central shoot and the rich branching into the laterals arranged in whorls point — with regard to the uptake