FLORAL BIOLOGY OF ARETHUSA-BULBOSA, CALOPOGON-TUBEROSUS, AND POGONIA-OPHIOGLOSSOIDES (ORCHIDACEAE)

[1] CARLSON M, 1935, BRIT T ILL STATE ACA, V28, P85

[2] Carlson Margery C., 1943, BULL TORREY BOT CLUB, V70, P349, DOI 10.2307/2481557

[3] CASE FW, 1964, ORCHIDS WESTERN GREA

[4] CORRELL DS, 1950, NATIVE ORCHIDS N AM

[5] DAUMER K, 1958, Z VERGL PHYSIOL, V41, P49

[6] DRESSLER ROBERT L., 1960, ANN MISSOURI BOT GARDEN, V47, P25, DOI 10.2307/2394615

[7] Free JB., 1959, BUMBLEBEES

[8] GOLDSMITH TH, 1961, S LIGHT LIFE

[9] GUIGNARD JA, 1879, 16 ANN REP ENT SOC O, P39

[10] Kerr W. E., 1969, Evolutionary Biology, V3, P119

[1] CARLSON M, 1935, BRIT T ILL STATE ACA, V28, P85

[2] Carlson Margery C., 1943, BULL TORREY BOT CLUB, V70, P349, DOI 10.2307/2481557

[3] CASE FW, 1964, ORCHIDS WESTERN GREA

[4] CORRELL DS, 1950, NATIVE ORCHIDS N AM

[5] DAUMER K, 1958, Z VERGL PHYSIOL, V41, P49

[6] DRESSLER ROBERT L., 1960, ANN MISSOURI BOT GARDEN, V47, P25, DOI 10.2307/2394615

[7] Free JB., 1959, BUMBLEBEES

[8] GOLDSMITH TH, 1961, S LIGHT LIFE

[9] GUIGNARD JA, 1879, 16 ANN REP ENT SOC O, P39

[10] Kerr W. E., 1969, Evolutionary Biology, V3, P119