Hofer, CJ, and LW Zettler. 1996. The role of white light photoperiod on the in vitro seed germination of Spiranthes odorata (Nutt.) Lindley (Orchidaceae) in symbiotic culture. Association of Southeastern Biologists Bulletin 43: 110.
Mariner, DJ and LW Zettler. 1996. The effect and importance of prolonged seed and fungus storage on in vitro symbiotic seed germination of the endangered monkey-face orchid (Platanthera integrilabia). Association of Southeastern Biologists Bulletin 43: 138.
Crock, CJ, LW Zettler, and DL Wyrick. 1997. Factors contributing to the enormity of an orchid population in the Blue Ridge of Tennessee. Association of Southeastern Biologists Bulletin 44: 125.
Sunley, JA, T Wilson Delaney, and LW Zettler. 1998. Seed propagation of the epiphytic green-fly orchid, Epidendrum conopseum, using its endophytic fungus: confirmation of mycorrhizal symbiosis. Association of Southeastern Biologists Bulletin 45: 133.
Burkhead, JC, JA Marshall, and LW Zettler. 1998. In vitro symbiotic seed germination of the Florida butterfly orchid, Encyclia tampensis: evidence for non-specificity for mycorrhizal fungi by an epiphytic orchid. Association of Southeastern Biologists Bulletin 45: 132.
Zettler, LW, JA Sunley, and T Wilson Delaney. 1999. Symbiotic micropropagation of the yellow fringless-orchid, Platanthera integra, from the Green Swamp, North Carolina. Association of Southeastern Biologists Bulletin 46: 182.
Marshall, JA, OB Reid, and LW Zettler. 1999. A beneficial effect of low seed density on the development of Encyclia tampensis (Orchidaceae): first demonstration for an epiphytic orchid. Association of Southeastern Biologists Bulletin 46: 164.
Stewart, SL, LW Zettler, ML Bowles, and KA Jacobs. 2000. Refining the technique of symbiotic seed germination on a Federal-threatened orchid, Platanthera leucophaea (Nutt.) Lindley. Association of Southeastern Biologists Bulletin 47: 146.
Brooks, MM and LW Zettler. 2000. Symbiotic seed germination of the northern oval-ladies' tresses, Spiranthes ovalis Lindley var. erostellata Catling. Association of Southeastern Biologists Bulletin 47:147.
Stewart, SL, LW Zettler, ML Bowles, and KA Jacobs. 2001. Symbiotic germination and mycorrhizal fungi of a Federally threatened orchid, Platanthera leucophaea. Southeastern Biology 48: 150.
Hudgens, HA, SL Stewart, and LW Zettler. 2001. Symbiotic germination of the rein orchids (Habenaria macroceratitis, H. quinqueseta, H. repens), and a description of orchid mycorrhizal fungi from Florida. Southeastern Biology 48: 166.
Zettler, LW, EL Maxwell, and SL Stewart. 2001. Do herbarium specimens harbor viable orchid seeds and mycorrhizal fungi for use in conservation? Southeastern Biology 48: 149.
Minso, J, SL Stewart, LW Zettler, and PM Brown. 2001. Seed germination and re-introduction of an endangered orchid (Spiranthes brevilabris) from Florida. Southeastern Biology 48: 167.
Stevens, JA, DJ Dennis, and LW Zettler. 2002. A survey of the dragonflies (Odonata: Anisoptera) of Lincoln's New Salem State Historic Site, Menard Co., Illinois. Southeastern Biology 49: 202.
Wagoner, CS, AL Stice, SL Stewart, and LW Zettler. 2002. Seed propagation of Spiranthes cernua (L.) Rich. (Orchidaceae) using mycorrhizal fungi from two genera (Epulorhiza and Ceratorhiza). Southeastern Biology 49: 168.
Hartsock, JJ, KA Piskin, and LW Zettler. 2003. Symbiotic seed germination of two showy terrestrial orchids (Platanthera ciliaris, P. cristata; Orchidaceae) using mycorrhizal fungi. Southeastern Biology 50: 149.
Piskin, KA, JJ Hartsock, LW Zettler, and ML Bowles. 2003. Seed germination requirements of a Federally threatened orchid (Platanthera leucophaea) in nature, and a technique to establish leaf-bearing seedlings onto soil. Southeastern Biology 50: 170.
Yoder, JA, PE Hanson, LW Zettler, JB Benoit, F Ghisays, and KA Piskin. 2003. Internal and external mycoflora of the American dog tick, Dermacentor variablis (Acari: Ixodidae), and its ecological implications. Council on Undergraduate Research, Muskingum College, New Concord, OH.
Bell, TJ, ML Bowles, LW Zettler, and S Poulter. 2004. Crossing effects on seed viability, germination, and protocorm growth of the Federal threatened eastern prairie fringed orchid (Platanthera leucophaea). 31st Annual Natural Areas Conference, Chicago, IL.
Hopkins, SE, SB Poulter, LW Zettler, and S Perlman. 2005. Symbiotic germination and mycorrhizal fungi of a Federally endangered Hawaiian endemic, Platanthera holochila (Orchidaceae). Butler University Undergraduate Research Conference, Butler University, Indianapolis, IN.
Poulter, SB, KI McDonald, SE Hopkins, and LW Zettler. 2005. Comparative effects of light and media on the cultivation of rare orchids native to Florida. Butler University Undergraduate Research Conference, Butler University, Indianapolis, IN.
McDonald, KI, SE Hopkins, S Perlman, and LW Zettler. 2006. The status and propagation of the Federally endangered Hawaiian endemic, Platanthera holochila (Orchidaceae). Southeastern Biology 53: 208.
Kutosky, W, KI McDonald, SB Poulter, and LW Zettler. 2006. Conservation-driven seed propagation and reintroduction of Epidendrum nocturnum (Orchidaceae) with a mycorrhizal fungus. Southeastern Biology 53: 201.
Turnquist, RL, AK Kirk, AR Morrison, S Perlman, and LW Zettler. 2008. In vitro seed germination and development of the Federally endangered Hawaiian endemic, Platanthera holochila (Orchidaceae) - an update. Transactions Illinois Academy Sciences (Volume 101 supplement: 61).
Massey, EE, LW Zettler, SL Stewart, and LW Richardson. 2008. Substrate preferences of epiphytic orchids (seedlings, juveniles, mature plants) within the Florida Panther Refuge NWR. Transactions Illinois Academy Sciences (Volume 101 supplement: 62).
Kirk, AK, LW Zettler, RL Turnquist, and S Perlman. 2008. In vitro and in situ seed germination of the Federally endangered Hawaiian orchid, Platanthera holochila. 8th Annual University Illinois - Springfield Research Symposium.
(A Kirk's presentation won "best paper" award at conference)
Geroff, RK, LJAN Johnson, D Marin, and LW Zettler. 2009. A preliminary survey of the micro-arthropods inhabiting terrestrial substrates near Monteverde Cloud Forest Preserve, Costa Rica. Transactions Illinois Academy Sciences (Volume 102 supplement: 61).
Hamilton, PW, LM Reuschel, and LW Zettler. 2009. Color preferences of day-flying insects inhabiting disturbed and undisturbed sites near Monteverde Cloud Forest Preserve, Costa Rica. Transactions Illinois Academy Sciences (Volume 102 supplement: 59).
(P. Hamilton's presentation was awarded 2nd place for undergraduate oral presentation, Zoology section)
Johnson, LJAN, LW Zettler, and S Perlman. 2009. An update on asymbiotic seed germination and in vitro development of the Federally endangered Hawaiian endemic, Platanthera holochila (Orchidaceae). Transactions Illinois Academy Sciences (Volume 102, supplement: 43).
Yates, AD, LW Zettler, S Perlman, and H Oppenheimer. 2010. Agar to soil seedling establishment of the Federally endangered Hawaiian endemic, Platanthera holochila (Orchidaceae), in vitro. Transactions Illinois Academy Sciences (Volume 103 supplement: 73).
Smith, JM, JJ Sadler, LW Zettler, HT Alborn, and LW Richardson. 2010. Floral fragrance composition of the ghost orchid, Dendrophylax lindenii (Lindley) Bentham ex Rolfe (Orchidaceae). Transactions Illinois Academy Sciences (Volume 103 supplement: 74).
(J. Smith's presentation was awarded 2nd place for undergraduate oral presentation, Botany section)
Zimmerman, CC, LW Zettler, LW Richardson. 2010. In vitro seedling development of the Florida clamshell orchid, Prosthechea cochleata (L.) W.E. Higgins var. triandra (Ames) W.E. Higgins, on three different asymbiotic media. Transactions Illinois Academy Sciences (Volume 103 supplement: 74).
Sadler, JJ, JM Smith, LW Zettler, HT Alborn, JA Zettler, and LW Richardson. 2010. Floral fragrance of the ghost orchid, Dendrophylax lindenii (Lindl.) Bentham ex Rolfe (Orchidaceae), and a novel technique for headspace collection in situ for epiphytic plants. 10th Annual University Illinois - Springfield Research Symposium.
(J Sadler's talk won "best presentation" award at conference)
Wood, EM, LL Moller-Jacobs, T Fugate, David, SE, LW Zettler, and S Perlman. 2011. Ex vitro soil establishment and reintroduction of the Federally endangered Hawaiian endemic, Platanthera holochila (Orchidaceae). Transactions Illinois State Academy Sciences (Volume 104, Supplement 80-81).
Furness, AN, J Fortney, and LW Zettler. 2011. Viability assessment of orchid mycorrhizal fungi in prolonged cool (4-6 C) storage to benefit conservation. Transactions Illinois State Academy Sciences (Volume 104, Supplement 82).
Fugate, T, AN Furness, JA Zettler, LW Zettler, and LW Richardson. 2011. Incidence of pestiferous scales (Hemiptera: Asterolecaniidae, Coccidae, Diaspididae), on epiphytic orchids in the Florida Panther National Wildlife Refuge. Transactions Illinois State Academy Sciences (Volume 104, Supplement 81-82).
Moller-Jacobs, LL, AY Ross, LL Corey, LW Zettler, and LW Richardson. 2011. Protocorms of an epiphytic orchid (Epidendrum amphistomum) recovered in situ, and identification of associated mycorrhizal fungi using molecular markers. Transactions Illinois State Academy Sciences (Volume 104, Supplement 81).
(NB: L. Moller-Jacobs' presentation awarded 2nd place, Botany section)
Ray, HA, LW Zettler, and G Sternberg. 2011. A preliminary survey of the Class Insecta at Starhill Forest Arboretum (Menard Co., IL). Transactions Illinois State Academy Sciences (Volume 104, Supplement 97-98).
Fortney, J, AN Furness, and LW Zettler. 2011. Viability assessment of orchid mycorrhizal fungi in prolonged cool (4-6 C) storage to benefit conservation. 11th Annual University Illinois - Springfield Research Symposium.
Ross, AY, LL Moller-Jacobs, LL Corey, LW Zettler, and LW Richardson. 2011. Protocorms of an epiphytic orchid (Epidendrum amphistomum) recovered in situ, and identification of associated mycorrhizal fungi using molecular (ITS) markers. 11th Annual University Illinois - Springfield Research Symposium.
(NB: A. Ross' presentation won "best paper" award at conference)
McCormick, J, HA Ray, AL Stice, I Stocks, and LW Zettler. 2012. Occurrence of Boisduval scale, Diaspis boisduvalii (Hemiptera: Diaspididae), on native epiphytic orchids in Collier Co., Florida, including Fakahatchee Strand State Preserve. Transactions Illinois State Academy Sciences (Supplement to Volume 105, p. 90).
Ray, HA, LW Zettler, and LW Richardson. 2012. A survey of the insects inhabiting the Florida Panther National Wildlife Refuge, including first documentation of the Mexican bromeliad weevil, Metamasius callizona (Coleoptera: Curculionidae). Transactions Illinois State Academy Sciences (Supplement to Volume 105, p. 90).
David, SE, H Oppenheimer, SP Perlman, A Palomino, and LW Zettler. 2012. Survival assessment of Platanthera (Peristylus) holochila (Orchidaceae) seedlings in vitro and following reintroduction in Hawaii. Transactions Illinois State Academy Sciences (Supplement to Volume 105, p. 64).
(NB: S. David's presentation awarded 2nd place, Botany section)
Ray, HA, J McCormick, AL Stice, I Stocks, and LW Zettler. 2012. Occurrence of Boisduval scale, Diaspis boisduvalii (Hemiptera: Diaspididae), on native epiphytic orchids in Collier Co., Florida, including Fakahatchee Strand State Preserve. University Illinois-Springfield Student Arts and Research Symposium (brochure, p. 19).