Abstract
Fahrbücher für wissenschaftliche Bolanik. Herausgegeben von Dr. N. Pringsheim. Band x. Heft II.—In the present number of Pringsheim's well-known and valuable year-books there are four papers, all of them of considerable interest. The first is by Dr. J. Reinke, of Göttingen—Contributions to the anatomy of the secreting organs, occurring especially on the serrations of certain foliage-leaves. It has been observed that in many plants the serrations of the leaves act as glands and secrete in many instances a mucilaginous substance, and in others resin, or a mixture of mucilage and resin, called blastocolla by Hanstein. Reinke has carefully examined the structure of these secreting organs in a large number of dicotyledonous plants, but has not made any exhaustive micro-chemical investigation of the secretions themselves. His observations show that the serrations of the leaves of Dicotyledons are in general the bearers of peculiar organs of secretion, whose activity may cease even while the leaf is in the bud, or at a later period. Æsculus and plants with spiny leaves apparently have no such secreting organs. In respect to the secretion itself, it is in the bud either a fluid mucilage or resin, while in the full-grown leaf it is only a watery or somewhat mucilaginous fluid. The paper is illustrated by two plates, on which are figured the glands of Prunus avium, Kerria japonica, Vicia faba, Betula alba, Corylus avellana, Evonymus japonicus, Ribes multiflorum, Epilobium Dedonæi, Catalpa syringæfolia, Clerodendron fragrans, and Viola odorata.
Article PDF
Rights and permissions
About this article
Cite this article
Scientific Serials . Nature 13, 156–158 (1875). https://doi.org/10.1038/013156a0
Issue Date:
DOI: https://doi.org/10.1038/013156a0