guide to pollen- and seed-cone morphology of black spruce, white spruce, jack pine and eastern white pine for controlled pollination
By: Rong H. Ho.
Contributors: Ontario Forest Research Institute.
Series: Forest research report -- no. 125.
Publisher: Ontario Forest Research Institute
Published: 1991
Place of publication: Sault Ste. Marie
Language: eng
Number of pages: 31
Subjects: Pollen -- Morphology.; Conifers -- Seeds.
Notes: Includes bibliographical references: p. 29.