Taxaceae


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Related to Taxaceae: Cupressaceae, Pseudotsuga, yew family

Taxaceae

 

a family of gymnospermous plants. Representatives of Taxaceae are evergreen trees and shrubs, usually heavily branched. The leaves, for the most part, are needle-like, linear, or linear-lanceolate and often asymmetrical. The plants are most often dioecious. The male spikelets, which are found in the axils of the leaves, may be solitary or gathered into catkins. The fruits are greatly reduced and are not shaped like cones; at the base they are surrounded by several pairs of scalelike leaves and bear one ovule. Mature seeds are surrounded by a fleshy aril. The family consists of approximately 20 species, which grow mainly in the northern hemisphere. There are five genera: Taxus, Torreya, Pseudotaxus (one species, in China), Austrotaxus (one species, in New Caledonia), and Amentotaxus (several species, in China and Vietnam).

References in periodicals archive ?
El genero Taxus pertenece a la clase Pinopsida, orden Taxales y a la familia Taxaceae (Malik et al., 2011).
Taxaceae 0.510 Sorbus aria (L.) Crantz Grossulariaceae 0.388 Laburnum anagvmides Medik.
Low genetic diversity and significant population structuring in the relict Amentotaxus argotaenia complex (Taxaceae) based on ISSR fingerprinting.
Keywords: Taxus yunnanensis; Taxaceae; Isotaxiresinol; Phytoestrogen; pQCT; Biochemical marker
Yew (Taxus baccata) is a relic tree species belonging to the family Taxaceae. The first fossil records appear in the Triassic (Paleotaxus), while the genus Taxus is documented as early as the Jurassic, with close proximity to the existing species of Taxus baccata (ABELLA, 2009).
Fu (Taxaceae), an evergreen tree commonly known as Hongdoushan, is one of such plants and widely distributed in Yunnan Province of China (Delectis Florae Republicae Popularis Sinicae Agendae Academiae Sinicae, 1978).
helvetica) as well as in the nongnetalean Taxus baccata (Taxaceae) and Carafa et al.
The only modification of the model is the disregard of Florin's creation of a separate order (Taxales), now seen to be nested among other conifer families as the family Taxaceae (Fig.
Durante el mes de marzo se incrementan considerablemente las concentra ciones de polen debido a la floracion de Platanus; tambien se contabilizan numerosos granos de polen de Populus y en menor medida de Cupressaceae/ Taxaceae, Pinaceae, Quercus y Urticaceae.
In the Taxaceae, viewed by Florin as distinct from the true conifers, the peltate microsporophyll of Taxus is considered primitive for the group and derived from a simple dichotomized branch system with terminal erect sporangia.