Ecological wood anatomy of NepaleseRhododendron (Ericaceae). 1. Interspecific variation

We studied wood anatomy and specific gravity in a total of 18 trees of Ocotea curucutuensis, a recently described species, lacking wood anatomical information. Nine sample trees were obtained in each of two areas, Pico do Itapeva (PI) and Núcleo Curucutu (NC), both in the state of São Paulo, Brazil. These areas have marked differences in precipitation, altitude, and temperature. Anatomical differences between the two populations appeared related to tree size, and possibly indirectly to climate. Higher wood specific gravity related with the smaller diameter in NC trees is hypothesized to contribute to mechanical support of the epiphyte-laden trees and to resistance against the prevailing strong winds.

Download Full-text

Ecological wood anatomy of Rhizophora stylosa

Chinese Journal of Plant Ecology ◽

10.17521/cjpe.2015.0058 ◽

2015 ◽

Vol 39 (6) ◽

pp. 604-615 ◽

Cited By ~ 1

Author(s):

DENG Chuan-Yuan ◽

◽

ZHENG Jun-Ming ◽

ZHANG Wan-Chao ◽

GUO Su-Zhi ◽

...

Keyword(s):

Wood Anatomy ◽

Rhizophora Stylosa ◽

Ecological Wood Anatomy

Download Full-text

Comparative Wood Anatomy of Southern South American Cupressaceae

IAWA Journal ◽

10.1163/22941932-90001263 ◽

1992 ◽

Vol 13 (2) ◽

pp. 151-162 ◽

Cited By ~ 14

Author(s):

Fidel A. Roig

Keyword(s):

Wood Anatomy ◽

Parenchyma Cell ◽

Interspecific Variation ◽

South American ◽

Distributional Pattern ◽

Axial Parenchyma ◽

Anatomical Features ◽

Ray Parenchyma ◽

Comparative Wood Anatomy ◽

Fitzroya Cupressoides

The wood anatomy is described for the Cupressaceae indigenous to southem South America: Austrocedrus chilensis, Pilgerodendron uviferum and Fitzroya cupressoides. The abundance and distributional pattern of axial parenchyma within each annual ring, height, and the presence or absence of nodules in the end walls of ray parenchyma are all useful anatomical features for distinguishing between the three species. Physical characteristics such as odour and heartwood colour also can be used to separate these species. Axial parenchyma cell length and tracheid length show considerable interspecific variation. Tracheid lengths of Pilgerodendron, but not of Austrocedrus and Fitzroya, decrease with increasing latitude.

Download Full-text

A Survey of the Fossil Record for Dicotiledonous Wood and its Significance for Evolutionary and Ecological Wood Anatomy

IAWA Journal ◽

10.1163/22941932-90001256 ◽

1991 ◽

Vol 12 (3) ◽

pp. 275-318 ◽

Cited By ~ 98

Author(s):

Elisabeth A. Wheeler ◽

Pieter Baas

Keyword(s):

Climatic Change ◽

Fossil Record ◽

Wood Anatomy ◽

Fossil Wood ◽

Ecological Wood Anatomy ◽

Anatomical Features ◽

The World

Data on fossil dicotyledonous wood were assembled in order to 1) test the Baileyan model for trends of specialisation in dicotyledonous wood anatomy by addressing the question - were 'primitive' wood anatomieal features (as defined by the Baileyan model) more common in the geologie past than at present?, 2) infer, on a broad geographie scale, past climatie regimes, and long term climatic change, and 3) assess the extent of knowledge of fossil dicotyledonous woods. The resulting database has information on 91 anatomieal features for over 1200 fossil dicotyledonous woods. The incidence of selected anatomical features was plotted through time (by geologie epoch) for the world and for two regional groupings (roughly corresponding to the Laurasian and Gondwanan supercontinents). For comparison to the fossil wood record, the incidence of wood anatomie al features in the Recent flora was obtained from the 5260 record OPCN database for extant dicotyledonous woods.

Download Full-text

Functional and Ecological Wood Anatomy

Kew Bulletin ◽

10.2307/4109913 ◽

1987 ◽

Vol 42 (1) ◽

pp. 267

Author(s):

Peter Gasson ◽

Pieter Baas ◽

Regis B. Miller

Keyword(s):

Wood Anatomy ◽

Ecological Wood Anatomy

Download Full-text

A Comparison of the Ecological Wood Anatomy of the Floras of Southern California and Israel

IAWA Journal ◽

10.1163/22941932-90000961 ◽

1985 ◽

Vol 6 (4) ◽

pp. 349-353 ◽

Cited By ~ 24

Author(s):

Pieter Baas ◽

Sherwin Carlquist

Keyword(s):

Drought Resistance ◽

Southern California ◽

Wood Anatomy ◽

Xylem Sap ◽

Floristic Composition ◽

Vessel Diameter ◽

Alternative Possibilities ◽

Ecological Wood Anatomy ◽

Helical Thickenings

A comparison is made between ecological trends in wood anatomy found in southern California and Israel and adjacent regions. Trends for type of vessel perforation, vessel member length and the occurrence of helical thickenings show striking parallels. Characters like vessel diameter and frequency and incidence of (fibre-)tracheids show only weakly similar trends. Vessel grouping and ring-porosity do not show any parallel in the data for southern California and Israel. The differences between the two floras can largely be attributed to different floristic composition and the alternative possibilities for safe and efficient xylem sap transport and drought resistance in different taxa.

Download Full-text