I can’t emphasize enough how difficult it can be to access samples of fir trees that grow in such isolated and far-flung places as the Himalayas and Morocco. Without places like the Hoyt, it would have taken me decades to find 40-50 fir species in their natural stands in North America, Europe, Asia, Africa, and Central America.
– Kevin Potter, North Carolina State University
The Hoyt has provided us with a source for stock plant material. It also serves as a great example of adult plant morphology and species comparison. We found many unique plants and were able to quickly see several similar species growing side by side for comparison.
– Frans Scholin, Xplant Laboratory
Dr. David S. Gernandt, Advisor, Universidad Nacional Autónoma de México, Departamento de Botanica, Instituto de Biologia
3er Circuito Exterior, Cd. Universitaria, A.P. 70-233, Mexico, D.F., MEXICO C.P. 04510
Larch and pine specimens from Hoyt Arboretum were included in the following papers.
Gernandt, D.S. and A. Liston. 1999. Internal transcribed spacer region evolution in Larix and Pseudotsuga (Pinaceae). American Journal of Botany 86: 711-723.
Larix decidua Mill. Hoyt Arboretum, Portland, Oregon, USA DSG001(a)/GBAN-AF041343(b)
L. gmelinii (Rupr.) Kuzen Hoyt Arboretum, Portland, Oregon, USA DSG002/none
Gernandt, D.S., Liston, A. y D. Piñero. 2001. Variation in the nrDNA ITS of Pinus subsection Cembroides: implications for molecular systematic studies of pine species complexes. Molecular Phylogenetics and Evolution 21: 449-467
Pinus aristata Engelm. AF037000 Hoyt Arboretum, OR, USA, Liston 980-2 (OSC)(c)
P. bungeana Zucc. AF036992 Hoyt Arboretum, OR, USA, Liston 1003 (OSC)
P. armandii Franch. AF036980 Hoyt Arboretum, OR, USA, Liston 986 (OSC)
Glenn Kohler, Forest Entomologist, Washington Department of Natural Resources.
Hemlock specimens from Hoyt Arboretum were included in the following research papers.
Ross, D.W., S.D. Gaimari, G.R. Kohler, K.F. Wallin and S.M. Grubin. 2011. Chamaemyiid predators of the hemlock woolly adelgid from the Pacific Northwest. In Reardon, R. & B. Onken (eds.), Implementation and Status of Biological Control of the Hemlock Woolly Adelgid. USDA Forest Service Publication FHTET-2011-04.
Kohler, G.R., V.L. Stiefel, K.F. Wallin, and D.W. Ross. 2008. Parasitoids reared from predators of hemlock woolly adelgid (Hemiptera: Adelgidae), and the hymenopterous parasitoid community on western hemlock in the Pacific Northwest. Environmental Entomology 37: 1477-1487.
Kohler, G.R., V.L. Stiefel, K.F. Wallin, and D.W. Ross. 2008. Predators Associated with the Hemlock Woolly Adelgid (Hemiptera: Adelgidae) in the Pacific Northwest. Environmental Entomology 37: 494-504.
Kohler, G.R. 2007. Predators Associated with Hemlock Woolly Adelgid (Hemiptera: Adelgidae) Infested Western Hemlock in the Pacific Northwest. M.S. thesis, Oregon State University, Corvallis, OR. 121 pp.
Dr. Aaron Liston, Professor, Director of Oregon State University Herbarium, Program Director Professional Science
Research Area: Plant systematics and evolution
Conifer specimens from Hoyt Arboretum were included in the following research papers.
Liston, A., W.A. Robinson, J.M. Oliphant, and E.R. Alvarez-Buylla. 1996. Length variation in the nuclear ribosomal DNA internal transcribed spacer region of non-flowering seed plants. Systematic Botany 21:109-120.
(a) David S. Gernandt voucher and collection
(b) The prefix GBAN has been added for linking the online version of American Journal of Botany to GenBank and is not part of the actual GenBank accession number.
(c) GenBank accession number