Tribe Neottieae - The Pollination Biology of North American Orchids: North of Florida and Mexico - page 79

"URNS"ALOGH03ZLACHETKO$,$AFNI!%VOLUTIONPOLLINATIONANDSYSTEMATICSOFTHE
TRIBE.EOTTIEAE/RCHIDACEAE0LANT3YST%VOLn
Calvo RN (1993) Evolutionary demography of orchids-Intensity and frequency of pollination and
the cost of fruiting. Ecology 74:1033-1042
Case FW Jr (1964) A hybrid twayblade and its rarer parent, Listera auriculata , in northern
Michigan. MI Bot 3:67-70
Case FW Jr (1987) Orchids of the Western Great Lakes Region. Cranbrook Institute of Science,
Bloomfield Hills, MI
#ATLING0-!UTOGAMYINEASTERN#ANADIAN/RCHIDACEAEAREVIEWOFCURRENTKNOWLEDGE
and some new observations. Naturaliste Canadien 110:37-54
Chaplin SJ, Walker JL (1982) Energetic constraints and adaptive significance of the floral display
of a forest milkweed. Ecology 63:1857-1870
Claessens J, Kleynen J (1996) Allogamie- und Autogamie-Tendenzen bei einigen Vertreten der
Gattung Epipactis . Berichte Arbeitskreis Heimische Orchideen 12:4-16
Cochran ME (1986) Consequences of pollination by chance in the pink lady's-slipper, Cypripedium
acaule 0H$$ISSERTATION4HE5NIVERSITYOF4ENNESSEE+NOXVILLE
Coleman RA (1986) The habitat and variation of Epipactis gigantea in the Santa Monica Mountains.
Orchid Digest 50:66-68
#OLEMAN2!4HE7ILD/RCHIDSOF#ALIFORNIA#OMSTOCK0UBLISHING!SSOCIATESADIVISION
OF#ORNELL5NIVERSITY0RESS)THACA.9
#OLEMAN2!4HEWILDORCHIDSOF!RIZONAAND.EW-EXICO#OMSTOCK0UBLISHING
!SSOCIATESADIVISIONOF#ORNELL5NIVERSITY0RESS)THACA.EW9ORKAND,ONDON
#ORRELL$3.ATIVEORCHIDSOF.ORTH!MERICA.ORTHOF-EXICO3TANFORD5NIVERSITY0RESS
Stanford, California
$AFNI!)VRI94HEmOWERBIOLOGYOF Cephalanthera longifolia /RCHIDACEAE0OLLEN
IMITATIONANDFACULTATIVEmORALMIMICRY0LANT3YST%VOLn
Darwin C (1862) On the various contrivances by which British and foreign orchids are fertilized
by insects. John Murray, London
Darwin C (1869) Notes on the fertilization of orchids. Ann Mag Nat Hist 4:141-159
Day DE (1882) Epipactis helleborine in Erie County. Bull Torrey Bot Club 9:127-128
$RESSLER2,0HYLOGENYANDCLASSIlCATIONOFTHEORCHIDFAMILY$IOSCORIDES0ORTLAND/2
Dressler RL, Dodson CH (1960) Classification and phylogeny in the Orchidaceae. Ann MO Bot
Gard 47:25-68
%AST%-4HEDISTRIBUTIONOFSELFFERTILITYINmOWERINGPLANTS0ROC!M0HILOS3OC
82:449-518
Ehlers BK, Olesen JM (1997) The fruit-wasp route to toxic nectar in Epipactis orchids? Flora
192:223-229
%HLERS"+0EDERSEN(!%'ENETICVARIATIONINTHREESPECIESOF Epipactis (Orchidaceae):
geographic scale and evolutionary inference. Biol J Linn Soc 69:411-430
Ehlers BK, Olesen JM, Agren J (2002) Floral morphology and reproductive success in the orchid
Epipactis helleborine REGIONALANDLOCALACROSSHABITATVARIATION0LANT3YST0LANT%VOLn
Emms SK, Stratton DA, Snow AA (1997) The effect of inflorescence size on male fitness: experi-
mental tests on the andromonoecious lily, Zigadenus paniculatus . Evolution 51:1481-1489
%VANS7,ETTERTO0OULTONREADAT%NTOMOLOGICAL3OCIETYOF,ONDONMEETING0ROC2
Entomol Soc 9:82-83
&AEGRI+VANDER0IJL,4HEPRINCIPALSOFPOLLINATIONECOLOGYRDEDN0ERGAMON/XFORD
Firmage DH, Cole FR (1988) Reproductive success and inflorescence size in Calopogon tuberosus
(Orchidaceae). Am J Bot 75:1371-1377
Gebauer G, Meyer M (2003) 15 N and 13 C natural abundance of autotrophic and myco-
heterotrophic orchids provides insight into nitrogen and carbon gain from fungal association.
.EW0HYTOLn
Gill DE (1996) The natural population ecology of temperate terrestrials: pink Lady's slipper,
Cypripedium acaule. In: Allen C (ed) North American native terrestrial orchids: propagation
and production. Native Orchid Conference, Germantown, MD, pp 91-106