New Zealand Journal of Botany abstracts

---

Annual rings in Beilschmiedia tawa (Lauraceae)

J. Ogden
C. J. West

Department of Botany, University of Auckland, Private Bag, Auckland, New Zealand

Abstract Evidence is presented that the growth rings in the wood of fast growing tawa are annual. Diameter growth rates of tawa are variable but usually \-A mmyr¹ in trees >20 cm diameter at 1.4 m height. Tawa probably has maximum longevity in the range 300-400 years. It shows unexplained biennial fluctuations in diameter increment, a feature shared with several New Zealand tree species.

Keywords wood; annual rings; parenchyma bands; Beilschmiedia tawa; dendrochronology

Received 6 July 1981
New Zealand Journal of Botany, 1981, Vol. 19:397^100

PDF file of entire paper: medium quality (732K); (scanned from paper original: notes about this process)

---

This year's abstracts | Journal home page | All abstracts | Publishing home page