Sphagnum moss as a medium for rooting pine seedlings
Series: Tropical forest notes / Institute of Tropical Forestry -- no. 9; Tropical forest notes -- no. 9.
Publisher: Institute of Tropical Forestry
Published: 1961
Place of publication: Rio Piedras, Puerto Rico
Language: eng
Subjects: Pine; Seedlings; Peat mosses
Notes: Caption title.

"December 12, 1961"--Page 2.