o:3844 Morpho-anatomical properties of Pinus heldreichii needles from natural populations in Montenegro and Serbia en Variability of eight morpho-anatomical characters of 2-year-old needles of the Bosnian pine (Pinus heldreichii Christ.), collected from natural populations in Montenegro (Lovćen, Zeletin and Bjelasica) and Serbia (Zlatibor-Pešter) were investigated. The needles have 0–13 resin ducts, predominantly of the medial type (settled in mesophyll tissue). The average values were as follows: 7.86 cm (needle length), 1.44 mm (needle width), 0.85 mm (needle thickness), 20.82 μm (cuticle+epidermis thickness), 21.08 μm (height of hypodermal cells), 3.31 (number of hypodermis layers), 4 (number of resin ducts) 57.05 μm (resin duct diameter). Needle width and thickness were the most variable characters. Principal component analysis separation of the geographically most distant populations Lovćen and Zlatibor-Pešter from themselves and from other populations. Cluster analysis suggests biggest similarities between populations Lovćen and Bjelasica and biggest differences between Lovćen and Zlatibor-Pešter. 1552101 1126-3504 1552256 1724-5575 1552099 https://doi.org/10.1080/11263504.2014.984008 2024-01-22T08:27:44.091Z 44 yes 46 Biljana M. Nikolić 0000-0002-2436-8294 46 Srdjan Bojović 46 Petar D. Marin application/pdf 67697 https://unilib.phaidrabg.rs/o:3844 no yes 16 70 1552253 Plant Biosystems 150 254 263 Taylor & Francis Ltd 2014