Developmental and Structural Section
Navas, Alfredo , Madriñan, Santiago .
The unbearable lightness of being a tree: Bocconia frutescens.
It is uncommon to find woody species in predominantly herbaceous families. Generally these trees have particular anatomic characters such as the presence of primary rays in secondary xylem. The occurrence of species with these characters has promoted discussions about their functionality and debates about the ancestral condition of the family. Bocconia frutescens is a woody species of the Papaveraceae, a predominantly herbaceous family. This species has particular wood characters and exhibits limited, repetitive growth and branching patterns, which construct a tree with a particular architecture. This research shows the morphological patterns found in B. frutescens, such as its architectural model, the occurrence of a diminishment in the number of ramifications per architectural unit, as well as the diminishment in length, diameter and size of inflorescence in each unit. Additionally the stem development and wood anatomy are studied, and related to the growth patterns and architectural model. We conclude that the architectonical patterns of this species are related to the herbaceous characters of the plant, which result from phylogenetic constraints that are evident on the wood anatomy, and explained by the developmental process of stems.
Log in to add this item to your schedule
Laboratorio de Botanica y Sistematica, Universidad de los Andes
1 - Universidad Catolica, Ecuela de Tecnologias, Tecnologia en Agroindustria, Carrera 7 km 21 via La Caro, Chia, Cundinamarca, 00001, Colombia
2 - Universidad de los Andes, Departamento de Ciencias Biologicas, Laboratorio de Botanica y Sistematica, Apartado Aereo 4976, Bogota, DC, 00001, Colombia
Presentation Type: Poster:Posters for Sections
Location: Exhibit Hall (Northeast, Southwest & Southeast)/Hilton
Date: Sunday, July 8th, 2007
Time: 8:00 AM