Forest Products from Latin America. Annotated Bibliography of ...

Vales, M.A.; Cameras, R. 1987. Anatomy of woods
of Cuba. III (Anatomia de maderas de Cuba. III). Acta
Botanica Hungarica. 33(3-4):333-351.
Covers Celtis trinervia, Grimmeodendron eglandulosum,
Laguncularia racernosa, Leucocroton moncadae, Oxan-
dra lanceolata, Pseudolmedia spuria, Rhizophora man-
gle, Spathodea campanulata, Symplocos strigillosa, and
Tabebuia calcicola.
Vales, M.A.; Martinez, C. 1983. Contribution of the
study of the wood anatomy of the family Simarubaceae
in Cuba. I. Alvaradoa and Simarouba (Contribucion al
estudio anatomico del xilema de la familia Simarubaceae
en Cuba. I. Alvaradoa Liebm. y Simarouba Aubl). Acta
Botanica Hungarica. 29(1-4):231-240.
Vales, M.A.; Suss, H. 1985. Wood anatomy of Rubiaceae
endemic in Cuba, Acunaeanthus tinifolius (Griseb.) Borhidi,
Ariadne shaferi (Standl.) Urb. and Neomazaea phiallan-
thoides (Grieseb.) Krug and Urb. (Die Holzanazomie der
in Kuba endemischen Rubiaceae Acunaeanthus tinifolius
(Griseb.) Borhidi, Ariadne shaferi (Standl.) Urb. und Neo-
mazaea phiallanthoides (Grieseb.) Krug et Urb). Feddes
Repertorium. 96(3):215-225.
Verna, M.M. 1979. Secondary wood of Argentinian Meli-
aceae (El leno secundario de las Meliaceas Argentinas).
Buenos Aires, Arsgentina: Instituto de Forestales Nacional,
Folleto Tecnico Fporestal. 53:29.
Describes the wood anatomy of Cabralea oblongifolia, Ce-
drela balansae, C. mexicana [C. odorata], C. tubiflora,
Guarea pohlii, G. spiciflora, Trichilia elegans, T. hieronymi,
and T. mollis. Included are photomicrographs of wood and
a wood identification key.
Vilela, J.E. 1969. Physical and mechanical properties of
137 woods of Venezuelan Guayana (Propiedades fisicas
y mecanicas de 137 maderas de la Guayana Venezolana).
Merida, Venezuela: Universidad de los Andes, Laboratoria
Nacional de Productos Forestales. 1:88.
Villalba, R. 1985. Xylem structure and cambial activity
in Prosopis flexuosa DC. International Association of Wood
Anatomists Bulletin. 6( 2) : 11 9-1 30.
A description of the wood structure of Prosopis flexuosa
DC. (Legum.) is given. It is semi-ring porous, shows pores
solitary, in multiples, and in clusters; small to large-sized
vessels with simple perforation plates, and thick vessel
walls. Ray multiseriate and homogenous. Paratracheal
axial parenchyma and libriform fibers. The hydraulic tissue
seems well adapted to very low rainfall and prolonged dry
periods.
Wahlgren, H.E.; Laundrie, J.F. 1977. Properties of
50 Philippine, 22 Ghanaian, and 18 Colombian hardwood
barks. AID Rep. 10. Washington, DC: U.S. Department of
State, Agency for International Development.
Bark properties, silica and ash content, specific gravity,
thermal values, and pulping properties are noted.
Webber, Irma. 1934. Systematic anatomy of the woods
of the Malvaceae. Tropical Woods. 38:15-36.
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Provides a summary of the various taxonomic classifications
proposed for the Malvaceae. Also presents an annotated
list of the genera, many of which are found in Latin Amer-
ica. The general properties and gross and minute anatomy
of the genera are discussed.
Welle, B.J.H. 1976. Silica grains in woody plants of the
neotropics, especially Surinam. In: Wood structure in bio-
logical and technological research; Inst. Systematic Bot.,
Utrecht University, Utrecht, Netherlands. The Hague,
Netherlands: Leiden University Press. Leiden Botanical
Series 3:107-142.
Distribution patterns, frequency, size, shape, and surface
texture of silica grains in the secondary xylem of neotrop-
ical taxa, especially from Surinam, were studied exten-
sively. Silica grains occur in about 300 species (32 fami-
lies and about 90 genera). Grains were present in many
taxa so far considered as nonsiliceous. They are most fre-
quently found in the parenchymatous tissues (in 80 percent
of siliceous material studied, grains were present in the ray
cells). Their distribution is very constant, especially when
they are restricted to one type of tissue. The diagnostic
value of silica grains appears to be very high. The shape
of the grains is usually variable, though in a few cases it is
very characteristic. Various types of surface structure are
recognized. The great variation in grain size reduces its
importance as a diagnostic tool.
Whitmore, J.L. 1973. Wood density variation in Costa
Rican balsa. Wood Science. 5(3):223-229.
Describes wood density variation in wood of Ochroma lagopus,
within tree, between trees in a specific area, and between
trees from different areas of Costa Rica. Within tree
variation was measured in the first log of each tree. Results
were correlated with site and tree characteristics, showing
the within tree density increases linearly with distance from
the pith and decreases with increasing height above the
root-collar. Between trees on the same site, greater average
density was found in larger diameter trees or those with
water heart. Substantial variation in average density is accounted
for by major environmental factors, found in the
three lowland regions of Costa Rica: Atlantic, Pacific wet,
and Pacific dry.
Wiemann, M.C. 1987. Keys for the identification of various
woods from Costa Rica (Claves para la identificacion de
algunas maderos en Costa Rica). Turrialba. 37(4):381-403.
Two keys, one based on macroscopic features and the
other on microscopic anatomical features, identify over 150
species of woods commercially important in Costa Rica.
Wiemann, M.C.; Williamson, G.B. 1988. Extreme ra-
dial changes in wood specific gravity in some tropical pio-
neers. Wood and Fiber Science. 20(3):344-349.
Describes the radial specific gravity variation in Hampea
appendiculata, Heliocarpus appendiculatus, and Ochroma
pyramidale found in Costa Rica. Data show an average
gain of 0.1 units of specific gravity per 10 cm. of radial
distance from pith to bark; this translates to 300 to 400
percent increase in specific gravity from pith to bark in
larger trees. The change is related to structural stability of
the trees.
Wilkes, J. 1988. Variations in wood anatomy within
species of Eucalyptus. International Association of Wood
Anatomists Bulletin. 9(1):13-23.