Journal article

Publication year: 1981

Pages: 103-111

Journal: Plant Systematics and Evolution

Volume number: 139

Issue number: 1-2

ISSN: 0378-2697

eISSN: 1615-6110

DOI Link: https://doi.org/10.1007/BF00983925

Publisher: Springer

Abstract: 
The leaf base vascularization in most of the Rubiaceae corresponds to the unilacunar pattern with 1 complex trace. Only some species are known to have a trilacunar nodal pattern with 3 traces. In the unilacunar type, one pair of smaller bundles separates from the complex lacunary leaf trace laterally, each soon forking into 2 arms: one arm becomes a marginal vein of the petiole, the other, besides supplying the stipules, forms a more or less distinct vascular bridge within the cortex of the nodal lanks. In the Rubieae, this flank bridge develops as a very distinct ascular ring commissure out of which the whorled leaf-like appendages are vascularized; only the opposite true leaves receive their complex trace out of the lacunes directly. Axillary branches originate only from these true leaves.

Harvard Citation style: NEUBAUER, H. (1981) NODAL ANATOMY OF SOME RUBIACEAE, Plant Systematics and Evolution, 139(1-2), pp. 103-111. https://doi.org/10.1007/BF00983925

APA Citation style: NEUBAUER, H. (1981). NODAL ANATOMY OF SOME RUBIACEAE. Plant Systematics and Evolution. 139(1-2), 103-111. https://doi.org/10.1007/BF00983925