Presentation Title

Observational Study of Ceratonia siliqua Landscape Trees in California

Faculty Mentor

Dr. Debra Folsom

Start Date

17-11-2018 8:00 AM

End Date

17-11-2018 8:15 AM

Location

C158

Session

Oral 1

Type of Presentation

Oral Talk

Subject Area

biological_agricultural_sciences

Abstract

Observational Study of Ceratonia siliqua Landscape Trees in California

Author: Megan Lynch, Pasadena City College Mentor: Debra Folsom, Natural Sciences Department, Pasadena City College

Ceratonia siliqua (carob) is a species native to the Arabian Peninsula & Somalia, and naturalized throughout the Mediterranean. It is well adapted to California's Mediterranean climate as well. Prior to the building of large irrigation projects in Southern California and the Central Valley, Ceratonia siliqua enjoyed widespread popularity as a landscape tree due to its drought-tolerance and broadleaf shade. It is also an economically important species, providing food for human and livestock consumption as well as the industrially important product locust bean gum (LBG) extracted from its seeds. In late 2013, I began observing the Ceratonia siliqua street trees in Pasadena and other cities in California in an effort to learn more about their growth habits and phenology. I classified over 150 specimens by sex, bark type, growth form,and leaflet count. I took photographs and created herbarium voucher specimens that are deposited at The Huntington Botanical Gardens Herbarium (HNT). This presentation will summarize these observations and posit several directions for future hypothesis-driven research.

Summary of research results to be presented

Study includes 205 specimens, mostly street trees, but some in public parks, and some on private property visually accessible to the public.

141 specimens in LA County

3 specimens in Riverside County

2 specimens in Kern County

21 specimens in Santa Barbara County

17 specimens in Contra Costa County

4 specimens in Yolo County

Presenting quantitative and qualitative results of observations on developmental plasticity due to environmental effects

This document is currently not available here.

Share

COinS
 
Nov 17th, 8:00 AM Nov 17th, 8:15 AM

Observational Study of Ceratonia siliqua Landscape Trees in California

C158

Observational Study of Ceratonia siliqua Landscape Trees in California

Author: Megan Lynch, Pasadena City College Mentor: Debra Folsom, Natural Sciences Department, Pasadena City College

Ceratonia siliqua (carob) is a species native to the Arabian Peninsula & Somalia, and naturalized throughout the Mediterranean. It is well adapted to California's Mediterranean climate as well. Prior to the building of large irrigation projects in Southern California and the Central Valley, Ceratonia siliqua enjoyed widespread popularity as a landscape tree due to its drought-tolerance and broadleaf shade. It is also an economically important species, providing food for human and livestock consumption as well as the industrially important product locust bean gum (LBG) extracted from its seeds. In late 2013, I began observing the Ceratonia siliqua street trees in Pasadena and other cities in California in an effort to learn more about their growth habits and phenology. I classified over 150 specimens by sex, bark type, growth form,and leaflet count. I took photographs and created herbarium voucher specimens that are deposited at The Huntington Botanical Gardens Herbarium (HNT). This presentation will summarize these observations and posit several directions for future hypothesis-driven research.