Anatomía comparada de la madera de Cupressaceae y su correspondencia con los estudios de filogenia

Using Lenses Attached to a Smartphone as a Macroscopic Early Warning Tool in the Illegal Timber Trade, in Particular for CITES-Listed Species

“…Using a 24× lens, it is easy to distinguish the tangentially zonate arrangement of the axial parenchyma in Fitzroya cupressoides (Figure 3B) and the tangentially zonate or diffuse arrangement in Pilgerodendron uviferum (Figure 3C), although other genera of Podocarpaceae and Cupressaceae have the same type of arrangement, e.g., Callitris Vent., Calocedrus Kurz, Chamaecyparis Spach, Cryptomeria D.Don, Cupressus L., Juniperus L., Taiwania Hayata, Taxodium Rich., Thuja L. [22], Tetraclinis [29], Actinostrobus Miq., Calocedrus, Chamaecyparis, Cupressus, Glyptostrobus Endl. [24] and a further species recently listed in CITES (Appendix II, 26 November 2019), Widdringtonia whytei Rendle, although its tangentially zonate axial parenchyma is sparser [24]. The characteristic colour and large number of growth rings per centimetre in Fitzroya Lindl., similar to Sequoia sempervirens and Thuja plicata Donn ex D.Don, in conjunction with axial tracheids without helical thickenings and the absence of resin canals, are sufficient to raise an early warning, although it would include other genera.…”

“…While microscopic identification of softwoods through their anatomy is complicated, particularly in families such as Cupressaceae where the genera have very similar anatomical features [24], macroscopic identification is almost impossible. However, large groups of softwoods can be differentiated without difficulty by observing certain macroscopic features.…”