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26 December 2014 Diversity of Nodal Structure in Mallotus nudiflorus (L.) Kulju & Welzen (Euphorbiaceae) — insight into the evolution of “Howard's Split-Lateral”
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Abstract

In 1970, Howard proposed a fifth type of nodal anatomy pattern, where a single vascular trace from the stele is associated with more than one leaf and termed it as “split-lateral”. Several workers observed this type of nodal vascular trace in different angiosperm families, but with rather conflicting interpretations. The present study added another family — Euphorbiaceae — in the list of such nodal type and, based on the observation of different nodal configurations of the species Mallotus nudiflorus (L.) Kulju & Welzen (basionym Trewia nudiflora L.), the evolutionary consequences of “split-lateral” were discussed.

© Publications Scientifiques du Muséum national d'Histoire naturelle, Paris.
Debabrata Maity "Diversity of Nodal Structure in Mallotus nudiflorus (L.) Kulju & Welzen (Euphorbiaceae) — insight into the evolution of “Howard's Split-Lateral”," Adansonia 36(2), (26 December 2014). https://doi.org/10.5252/a2014n2a8
Received: 14 December 2012; Accepted: 1 January 2014; Published: 26 December 2014
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