B. Papp szerk.: Studia Botanica Hungarica 38. 2007 (Budapest, 2007)

Rácz, István; Huyen, D. D.: Study of a low-elevation occurrence of Pinus dalatensis Ferré (Pinaceae) in Gia Lai province, Vietnam

MORPHOLOGY OF PINUS DALA TENSIS IN THE KON JOT AREA The morphological characters of the Kon Jot population were considered in comparison with the subspecific/varietal categories established by BUSINSKY (1999). The trees observed by us were 12 to 38-40 m high with trunk diameters from 25 to almost 140 cm (DBH), mostly having straight clean trunks often divided into several main stems from the middle of the crown, and eventually forming a wide-spreading rounded crown. Bark of the younger trees is rather smooth but was shedding in thin, reddish-grey plates; bark on the mature old trees is dark reddish-grey, detaching in small, irregular, flat plates. In this population the branchlets are glabrous with the exception of collection #69270. This collection was a mature coning tree with ovuliferous and pollen cones just at time of pollen shedding; in this specimen the young branchlets are sparsely grey pubescent but the previous-year branchlet glabrous. The branchlets in all specimens were more or Fig. 4. a. The crown of the largest tree of Pinus dalatensis documented in the Kon Jot forest (~40 m by 410 cm GBH). - b. The lower trunk of the above tree.