Title
The woods and flora of the Florida Keys : "Pinnatae"
Title Variants
Alternative:
Pinnatae
Related Titles
Series:
Contribution (Maryland Agricultural Experiment Station), no. 4506
Series:
Smithsonian contributions to botany, no. 5
By
Rock, Barrett Nelson.
Type
Book
Material
Published material
Publication info
Washington, Smithsonian Institution Press, 1972
Notes
The “Pinnatae,” comprising six families of woody plants with pinnately compound leaves, is represented on the Florida Keys by at least 16 species. The taxonomic treatment of these families at the ordinal level has been inconsistent. The purpose of this study is to correlate the data derived from intensive study of the xylem anatomy of these 16 species with data from the literature concerning these and other members of the families involved, so that new insight might be gained concerning the taxonomic relationships among these families.This study indicates that the members of the Pinnatae are anatomically homogeneous. All members possess simple perforation plates, vessel elements having alternate intervascular pitting, fibrous elements with small slitlike simple to vestigially bordered pits, and apotracheal and paratracheal axial parenchyma, or both. Secretory structures, such as crystalliferous idioblasts, parenchymatous cells containing “gum,” and intercellular canals, are of wide occurrence within the Pinnatae. In addition, many species possess septate fibers and axial parenchyma arranged in aggregate patterns, with banded arrangements being most frequent.There is no anatomical basis for the separation of families into distinct orders in my view. The only separation of families within the Pinnatae suggested by a syndrome of several unique characters, in addition to those common to all members, is the formation of an Anacardiaceae-Burseraceae complex. The members of the Pinnatae belong to a taxon corresponding well with Cronquist's Sapindales.Phylogenetically, the Pinnatae constitutes an advanced taxon, based on xylem anatomy.
Subjects
Anatomy
,
Florida
,
Florida Keys
,
Sapindales
,
Wood
,
Woody plants
Call Number
QK1 .S2747 no. 5
Language
English
Identifiers
DOI:
https://doi.org/10.5962/bhl.title.123255
LCCN:
https://lccn.loc.gov/72600883
OCLC:
305055
Wikidata:
https://www.wikidata.org/entity/Q51399930
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