Ackerman, J.D.
1977.
Biosystematics of the genus Piperia Rydb. (Orchidaceae). J. Linn. Soc. Bot. 75:245-270.
|
Ackerman, J.D.
1975.
Reproductive biology of Goodyera oblongifolia (Orchidaceae). Madrono 23:191-198.
|
Beese, W.J.
1983.
White Malaxis, Malaxis monophyllos var. diphyllos, an addition to the orchids of Canada from the Queen Charlotte Islands, British Columbia. Can. Field-Nat. 97:215-216.
|
Correll, D.S.
1950.
Native orchids of North America north of Mexico. Chronica Botanica Co., Waltham, MA. 399 p.
|
Correll, D.S.
1943.
The genus Habenaria in western North America. Leafl. West. Bot. 3: 233-256.
|
Cribb, P.
1997.
The Genus Cypripedium. Timber Press, Portland, OR. 301 p.
|
Haley, P.L., J.D. Michaud and J. Arditti.
1980.
Morphometry of orchid seeds. III. Native California and related species of Goodyera, Piperia, Platanthera and Spiranthes. Amer. J. Bot. 67(4):508-510.
|
Kallunki, J.A.
1981.
Reproductive biology of mixed-species populations of Goodyera (Orchidaceae) in northern Michigan. Brittonia 33:137-155.
|
Kott, L. and A.E. Kott.
1974.
A record of the orchid Malaxis monophyllos (L.) Sw. from northeastern British Columbia. Can. Field-Nat. 88:89.
|
Luer, C.A.
1975.
The native orchids of the United States and Canada excluding Florida. N.Y. Botanical Garden, NY. 361 p.
|
Morgan, R.
1997.
Field key to Piperia (Orchidaceae) of the Pacific Northwest. Botanical Electronic News 171.
|
Morgan, R. and J.D. Ackerman.
1990.
Two new Piperias (Orchidaceae) from Western North America. Lindleyana 5:205-211.
|
Morgan, R. and L. Glicenstein.
1993.
Additional California taxa in Piperia (Orchidaceae). Lindleyana 8: 89-95.
|
Revel, R.D., and K.I. Beamish.
1972.
Liparis loeselii (L.) L.C. Rich., a new species for British Columbia. Syesis 5:287.
|
Schrenk, W.J.
1975.
Zum Problem der Variabilitat innerhalb der Gattung Platanthera L.C. Rich. (Habenaria Willd. sl.p.p.) in Nordamerika. Orchidee 26:258-263.
|
Sheviak, C.J.
1994.
Cypripedium parviflorum Salisb. I: The small-flowered varieties. Amer. Orchid Soc. Bull. 63: 664-669
|
Sheviak, C.J.
1992.
Natural hybridization between Cypripedium montanum and its yellow-lipped relatives. Amer. Orchid Soc. Bull. 61: 546-559.
|
Sheviak, C.J.
1999.
The identities of Platanthera hyperborea and P. huronensis, with the description of a new species from North America. Lindleyana 14(4): 193-203.
|
Szczawinski, A.F.
1960.
New records of Chamisso's orchid (Habenaria chorisiana Cham.) for British Columbia. Victoria Naturalist (Victoria) 17:35-36.
|
Szczawinski, A.F.
1959.
The Orchids of British Columbia. B.C. Prov. Mus. Handb. No. 16, Victoria. BC.
|