Tribe Arethuseae (Calopogon R. Brown and Arethusa L.) and Subfamily Vanilloideae (Part One) (Pogonia Jussieu) - The Pollination Biology of North American Orchids: North of Florida and Mexico - page 163

Freudenstein JV, Rasmussen FN (1997) Sectile pollinia and relationships in the Orchidaceae. Plant
Syst Evol 205:125-146
Goldman DH (1995) A new species of Calopogon FROMTHE-IDWESTERN5NITED3TATES,INDLEYANA
10:37-42
Goldman DH (2000) Systematics of Calopogon and the tribe Arethuseae (Orchidaceae). Ph.D.
DISSERTATION5NIVERSITYOF4EXAS!USTIN48
Goldman DH, Orzell SL (2000) Morphological, geographical, and ecological re-evaluation of
Calopogon multiflorus (Orchidaceae). Lindleyana 15:237-251
Goldman DH, Freudenstein JV, Kores PJ, Molvray M, Jarrell DC, Whitten WM, Cameron KM,
Jansen RK, Chase MW (2001) Phylogenetics of Arethuseae (Orchidaceae) based on plastid
mat K and rbc L sequences. Syst Bot 26:670-695
Goldman DH, Coleman RA Magrath LA, Catling PM (2002) Hexalectris . In: Flora of North
America Editorial Committee (ed) Flora of North America North of Mexico, vol 26. Oxford
5NIVERSITY0RESS/XFORDPPn
Goldman DH, Magrath LK, Catling PM (2002) Calopogon. In: Flora of North American Editorial
#OMMITTEEED&LORAOF.ORTH!MERICA.ORTHOF-EXICOVOL/XFORD5NIVERSITY0RESS
Oxford, pp 597-602
Goldman DH, Jansen RK, van den Berg C, Leitch IJ, Fay MF, Chase MW (2004) Molecular and
cytological examination of Calopogon (Orchidaceae, Epidendroideae): circumscription, phy-
logeny, polyploidy, and possible hybrid speciation. Am J Bot 91:707-723
Gregg KB (1991) Defrauding the deceitful orchid: pollen collection by pollinators of Cleistes
divaricata and C. bifaria . Lindleyana 6:214-220
Guignard JA (1879) Insects and orchids. Annual Report of the Entomological Society of Ontario,
Toronto, pp 39-55
Heinrich B (1975) Bee flowers: a hypothesis on flower variety and blooming time. Evolution
29:325-334
(EINRICH""UMBLEBEEECONOMICS(ARVARD5NIVERSITY0RESS#AMBRIDGE-!
Heinrich B, Raven PA (1972) Energetics and pollination ecology. Science 176:567-602
Hesse M, Burns-Balogh P, Wolff M (1989) Pollen morphology of the 'primitive' epidendroid
orchids. Grana 28:261-278
Holsinger KE, Feldman MW, Christiansen FB (1984) The evolution of self-fertilization in plants:
a population genetic model. Am Nat 124:446-453
Klinkhamer PGL, de Jong TJ (1993) Attractiveness to pollinators: a plant's dilemma. Oikos
66:180-184
Lehmberg V (2002) New discoveries on the reproductive biology of Calopogon tuberosus . Orchids
71:138-145
Levin DA, Kerster HW (1967) Natural selection for reproductive isolation in Phlox . Evolution
21:679-687
Levin DA, Schaal BA (1970) Corolla color as an inhibitor of interspecific hybridization in Phlox .
Am Nat 104:273-283
Lewis H (1961) Experimental sympatric populations of Clarkia . Am Nat 95:155-168
Little RJ (1983) A review of floral food deception mimicries with comments on floral mutualism.
In: Jones CE, Little RJ (eds) Handbook of experimental pollination ecology. Scientific and
Academic Editions, New York, pp 294-309
Lloyd DG, Webb CJ (1986) The avoidance of interference between the presentation of pollen and
stigmas in angiosperms. I. Dichogamy. NZ J Bot 24:135-138
Love L, Love D (1981) IOBP chromosome number reports LXXIII. Taxon 30:829-861
Luer CA (1972) The native orchids of Florida. The New York Botanical Garden, New York
,UER#!4HENATIVEORCHIDSOFTHE5NITED3TATESAND#ANADAEXCLUDING&LORIDA4HE.EW
York Botanical Garden, New York
Mosquin T (1970) The reproductive biology of Calypso bulbosa (Orchidaceae). Can Field Nat
84:291-296
Panasarin ER, Barros F (2008) Taxonomic notes on Pogonieae (Orchidaceae): Cleistesiopsis , a
new genus segregated from Cleistes , and description of two new South American species,
Cleistes batistana and Cleistes elongata . Kew Bull 63:441-448