Botanic Gardens Trust Sydney Australia

Peter Bernhardt

Name
Peter Bernhardt BA, MA(SUNY), PhD(Melb)

>> Click here to view Peter's St Louis University web page

Position

  • Honorary Research Associate, Botanic Gardens Trust, Sydney
  • Professor of Biology, Saint Louis University, Saint Louis Missouri
  • Research Associate, The Missouri Botanical Garden, Saint Louis Missouri

Email
bernhap2@slu.edu

Phone
1-314-977-7152

Fax
1-314-977-3658

Role
Analyses of the pollination biology and breeding systems (pollen-pistil interactions) of native plants of Australia, Africa, China and North America (in association with Dr Peter Weston). Education and popularisation in plant biology for the general public (books, magazine articles and signage). 

Research interests
Plant-pollinator interactions, the evolution of flowers pollinated by wasps and beetles, the reproductive biology of threatened-endangered species, the evolution of flowers in the orchid (Orchidaceae) and iris (Iridaceae) families. The evolution of flowers of trees and shrubs in the banksia family (Proteaceae) in Australia.  The illustrations and writings of May Gibbs. Tertiary and mature student education in the plant sciences. 

Keywords
beetles, breeding systems, flowers, nectar, orchids, pollen, pollination, pollinia, Proteaceae, self-incompatibility, wasps

Current research projects

  • pollination and breeding systems of cinquefoils (Potentilla; Rosaceae)
  • marsh marigolds (Caltha palustris; Ranunculaceae)
  • slipper orchids (Cypripedium; Orchidaceae)
  • peonies (Paeonia; Paeoniaceae)
  • nightcap oak (Eidothea;  Proteaceae).

Key publications 

Theses

  1. Bernhardt, P.  1975.  The pollination ecology of four local vernal angiosperms.  M.A. thesis.  Masters Thesis.  Dept. of Biology, S.U.N.Y Brockport, N.Y. 14420.
  2.  -----.  1982.  The floral biology of Amyema in southeastern Australia.  Ph.D. thesis.  School of Botany, U. of Melbourne, Parkville, Victoria 3052, Australia.

Books and Book Chapters

  1. Williams, E.G., Gilbert, J. & Bernhardt, P.(eds.) 1982. Pollination `82. pp.  1982.  School
    of Botany, Melbourne.
  2. Bernhardt, P.  1982.  Insect pollination of Acacia. pp. 84-102.  In, Pollination  `82.  Williams, E.G., Knox, R.B., Gilbert, J.H. & Bernhardt, P. (eds.).  School of Botany, U. of Melbourne.
  3. Beardsell, D.V. & Bernhardt, P.  1983.  Pollination biology of Australian terrestrial orchids.  pp. 166-183.  In, Pollination `82.  Williams, E.G.  , Knox,
    R.B., Gilbert, J.H. & Pernhardt, P. (eds.).  School of Botany, U. of Melbourne.
  4. Calder, D.M. & Bernhardt, P. (eds.).  1983.  The Biology of Mistletoes.  pp. 348.  Academic press, Sydney.
  5. Bernhardt, P.  1983.  The floral biology of Amyema in southeastern Australia.  pp. 87-100.  In, The Biology of Mistletoes.  Calder, D.M. & Bernhardt, P. (eds.).  Academic Press, Sydney.
  6. Hough, T., Bernhardt, P., Williams, E.G. & Knox, R.B.  1984.  Behavior of pollen nuclei in self and cross pollinations of Lycopersicon and Brassica.  pp. 113-119.  In, Pollination `84.  Williams, E.G. & Knox, R.B. (eds.).  School of Botany, U. of Melbourne.
  7. Bernhardt, P.  1989.  The floral ecology of Australian Acacia.  pp. 127-155.  In, Advances In Legume Biology,  Stirton, C.H. & Zarucchi, J.L.  Monographs in Systematic Botany from the Missouri Botanical Garden, St. Louis Mo.
  8. Dafni, A. & Bernhardt, P.  1989.  Pollination of terrestrial orchids of southern Australia and the Mediterranean Region: Systematic, ecological and evolutionary implications.  pp. 193-252.  In, Evolutionary Biology, Vol. 24.  Hecht, M.K., Wallace, B. & Macintyre, R.J. (eds.).  Plenum Publishing, U.S.A.
  9. Bernhardt, P.  1989.  Wily Violets & Underground Orchids:  Revelations of A Botanist.  William Morrow & Co. Inc.  New York.
  10. -----, P.  1992.  Of Blossoms and Bugs; Natural History in May Gibbs' Art.  pp. 5-11.  In, Gumnut Town; Botanic Fact and Bushland Fantasy.  Royal Botanic Garden, Sydney, Australia.
  11. -----.  1993.  Natural Affairs; A Botanist Looks at Attachments Between People and Plants.  Villard Books, U.S.A.
  12. -----.  1993.  Orthoceras, Thelymitra, Calochilus, Rimacola, Adenochilus, Caleana, Arthrochilus, Caladenia, Glossodia, Eriochilus, Burnettia, Lyperanthus, Rhizanthella, Spiranthes  p. 138, 146-154, 170-171, 194-212, 219, 221.  In, Flora of New South Wales, Vol. IV., Hardin G. (ed.), NSW UP, Australia.
  13. -----. and Rowe, E.E.  1993.  Prasophyllum.  pp. 155-163.  Ibid. 
  14. -----.  1995.  Biogeography and floral evolution in the Geoblasteae (Orchidaceae).  In, Ecology and Biogeography of Mediterranean Ecosystems in Chile, California and Australia, Arroyo, M.T.K., Zedler, P.H. and Fox, M.D. (editors)  pp. 116-134.  Springer-Verlag, New York.        
  15. -----.  1996.  Anther adaptations for animal pollination.  Pp. 192-220.  In, The Biology of Anthers, D'Arcy, W. and Keating, R. (eds.).  Cambridge U. Press, New York, N.Y.    
  16. -----.  1999.  The Rose's Kiss; A Natural History of Flowers, Shearwater Press Shearwater/Island Press).  Covelo, California and Washington D.C.
  17. -----. &  Goldblatt, P.  1998.  The diversity of pollination mechanisms in the Iridaceae of southern Africa.  In, Monocots II; Second International Conference on the Comparative biology of the Monocotyledons and Third International Symposium on Grass Systematics and Evolution.  University of New South Wales, Sydney, Australia.   Eilson, K.L. & Morrison, D.A. (editors), pp. 301-308.  CSIRO Publishing, Collingwood, Victoria, Australia.  
  18. Bernhardt, P. & Dafni, A.  2000.  Breeding system and pollination biology of Mandragora officinarum L. (Solanaceae, in northern Israel.  In, The Scandinavian Association for Pollination Ecology honours Knut Faegri. Totland, O. (editor),  pp. 215-224. Det Norske Videnskaps-Akademi, Series 39, Oslo, Norway. 
  19. Bernhardt, P. 2005. Pollen transport and Transfer by Animal Pollinators. In, Practical Pollination Biology. Dafni, A., Kevan, P.G. & Husband, B.C. (editors). Pp. 371-380. Enviroquest Ltd. Cambridge, Ontario, Canada.
  20. Bernhardt, P. & Goldblatt, P. 2006. The role of phylogenetic constraints in the evolution of pollination mechanisms in Iridaceae of sub-Saharan Africa. Pp. 434-464. In, Monocots; Comparative biology and Evolution (Excluding Poales).  Rancho Santa Ana Botanic Garden. Claremont, California., U.S.A. Columbus, J.T., Friar, E.A., Porter, J.M., Prince, L.M. & Simpson, M.G. (editors). Allen Press, USA.
  21. Committee on the Status of Pollinators in North America (including Bernhardt, P.). 2007. Status of Pollinators in North America. National Research Council. The National Academies Press, Washington, D.C., U.S.A. www.nap.edu.
  22. Bernhardt, P. 2008. Gods and Goddesses in the Garden; Greco-Roman Mythology and the Scientific Names of Plants.  Rutgers U. Press (in press).

  23. Bernhardt, P. 2008. Gods and Goddesses in the Garden; Greco-Roman Mythology and The Scientific Names of Plants.  Rutgers University Press, New Jersey, U.S.A. >> Click here for more infomation.
     

Papers in Refereed Journals

  1. Bernhardt, P.  1976.  The pollination of Hepatica acutiloba DC. (Ranunculaceae).  Bulletin of the Torrey Botanical Club 105:  255-258.
  2. -----.  1977.  The pollination ecology of a populations of Erythronium americanum Ker. (Liliaceae).  Rhodora 79:  278-282.
  3. -----.  Interspecific incompatibility amongst, Victorian species of Amyema
    (Loranthaceae).  Australian Journal of Botany 80: 175-84.
  4. -----. & Calder, D.M.  1980.  Comparative breeding systems and adaptive floral morphologies of Ameyma linophyllum and Amyema preissii (Loranthaceae).  Phytomorphology 30: 271-289.
  5. -----. & -----.  1981.  The floral ecology of sympatric populations of Amyema pendulum and Amyema quandang (Loranthaceae).  Bulletin of the Torrey Botanical Club 108:  213-230.
  6. -----. & -----.  1981.  Hybridization of Ameyma pendulum and Amyema quandang (Loranthaceae).  Bulletin of the Torrey Botanical Club 108: 456-466.
  7. -----., Knox, R.B. & Calder, D.M.  1980.  Floral biology and self-incompatibility in some Australian mistletoes of the genus Ameyma (Loranthaceae).  Australian Journal of Botany 28:  437-51.
  8. -----. & Montalvo, E.A.  1977.  The reproductive phenology of Echeandia macrocarpa Greenm. (Liliaceae) with a reexamination of the floral morphology.  Bulletin of the Torrey Botanical Club 104:  320-323.
  9. -----. & -----.  1978.  Selected collecting sites in El Salvador.  I.  Private Property.  Bulletin of the Torrey Botanical Club.  105:  9-13.
  10. -----. & -----.  1979.  The pollination of Echeandia macrocarpa (Liliaceae).  Brittonia 31: 64-71.
  11. -----.  1984.  Mistletoes on mistletoes:  The floral ecology of Amyema miraculosum and its host, Amyema miquelii (Loranthaceae).  Australian Journal of Botany 32:  73-86.
  12. -----.  1983.  Dimorphic flowers in Amyema melalucae (Loranthaceae):  A shift towards obligate autogamy.  Bull. Torr. Bot. Club 110:  195-202.
  13. -----. & Knox, R.B.  1983.  The stigmatic papillae of Amyema (Loranthaceae).  Surface responses to protandry and adaptations for bird pollination.  American Journal of Botany 70:  1212-1219.
  14. -----. & Burns-Balogh, P.  1983.  Pollination and pollinarium of Dipodium punctatum (Sm.) R.Br.  Victorian Naturalist 100:  197-199.
  15. Calder, D.M., Lennox, G. & Bernhardt, P.  1982.  Natural hybridization between Amyema pendulum and Amyema quandang.  Australian Journal of Botany 30:  625-633.
  16. Bernhardt, P.  1984.  The pollination biology of Hibbertia stricta (Dilleniaceae).  Plant Systematics and Evolution 147:  266-277.
  17. -----., Kenrick, J. & Knox, R.B.  1984.  Pollination biology and the breeding system of Acacia retinodes (Leguminoseae: Mimosoidae).  Ann. Mo. Bot. Garden 71: 17-29.
  18. -----. & Walker, K.  1984.  Bee foraging on three sympatric species of Australian Acacia.  International Journal of Entomology 26:  322-330.
  19. -----. & -----.  1985.  Insect foraging on Acacia retinodes var. retinodes.  International Journal of Entomology 27:  97-101.
  20. -----. & Burns-Balogh, P.  1986.  Floral mimesis of Thelymitra nuda (Orchidaceae).  Pl. Syst. Evol. 151:  187-202.
  21. Hough, T., Bernhardt, P., Knox, R.B. & Williams, E.G.  1985.  Applications of fluorochromes in pollen biology II.  The DNA probes Ethidium Bromide and Hoechst 33258 in conjunction with the callose-specific aniline blue fluorochrome.  Stain Technol. 60:  155-162.
  22. Knox, R.B., Kenrick, J., Bernhardt, P., Marginson, R., Beresford, G., Baker, I & Baker, H.G.  1985.  Extra-floral nectaries as adaptations for bird pollination in Acacia terminalis.  American Journal of Botany 72:  1185-1196.
  23. Thien, L.B., Bernhardt, P., Gibbs, G.W., Pellmyr, O.M., Bergstrom, G., Groth, I., McPherson, G.  1985.  The pollination of Zygogynum (Winteraceae) by a moth, Sabatinca (Micropterigidae):  An ancient association?  Science 227:  540-543.
  24. -----., -----., -----., -----., -----., -----., -----.,  1985.  The pollination of Zygogynum (Winteraceae) by a moth, Sabatinca (Micropterigidae). National Geographic Society Research Report 21:  481-485. 
  25. Burns-Balogh, P. & Bernhardt, P.  1985.  Evolutionary trends in the androecium of the Orchidaceae.  Pl. Syst. & Evol.  149:  119-134.
  26. Bernhardt, P.  1986.  Bee-pollination of Hibbertia fasciculata (Dilleniaceae).  Pl. Syst. Evol. 152:  231-241.
  27. -----., & Burns-Balogh, P.  1986.  Observations on the floral biology of Prasophyllum odoratum (Orchidaceae, Spiranthoideae).  Pl. Syst. Evol.  153:  65-76.
  28. -----.  1987.  A comparison of the diversity, density and foraging behavior of bees and wasps on Australian Acacia.  Ann. Mo Bot. Garden.  74:  42-50.
  29. Kenrick, J., Bernhardt, P., Marginson, R., Beresford, G., Knox, R.B., Baker, I. & Baker, H.G.  1987.  Pollination-related characteristics in the mimosoid legume (Acacia terminalis; Leguminoseae).  Pl. Syst. Evol. 157:  49-62.
  30. Bernhardt, P. & Thien, L.B.  1987.  Self-isolation and insect pollination in the primtive angiosperms:  new evaluations of older hypotheses.  Pl. Syst. Evol. 156:  159-176.
  31. Burns-Balogh, P. & Bernhardt, P.  1988.  Floral evolution and phylogeny in the tribe Thelymitreae (Orchidaceae:  Neottioideae).  Pl. Syst. Evol. 159:  19-47.
  32. Goldblatt, P., Bernhardt, P. & Manning, J.  1989.  observations on the pollination biology of two species of Moraea (Iridaceae).  Pl. Syst. Evol. 163:  201-209.
  33. Dafni, A., Bernhardt, P., Shmida, A., Ivri, Y., Greenbaum, S., O'Toole, C. & Losito, L.  1990.  Red bowl-shaped flowers:  Convergence for beetle pollination in the Mediterrranean region.  Israel Journal of Botany 39:  81-92.
  34. Goldblatt, P. and Bernhardt, P.  1990.  Pollination biology of Nivenia (Iridaceae) and the presence of heterostylous self-incompatibility.  Israel Journal of Botany 39:  93-111. 
  35. Bernhardt, P.  1990.  Anthecology of Schrankia nuttallii (Mimoscaceeae) on the tallgrass
    prairie.  Pl. Syst. & Evol. 170:  247-255.
  36. -----.  1990.  Pollination ecology of Oxalis violacea following a controlled grass fire.  Pl. Syst. Evol. 171: 147-155.
  37. -----.  1995.  The floral ecology of Dianella caerulea var. assera (Phormiaceae).  Cunninghamia 4: 1-17.
  38. -----.  1995.  Observations on the floral biology of Pterostylis curta (Orchidaceae).  Cunninghamia 5: 1-8.
  39. Goldblatt, P., Manning, J.C. & Bernhardt, P.  1995.  Pollination biology of Lapeirousia subgenus Lapeirousia (Iridaceae) in southern Africa:  Floral divergence and adaptation for long-tongue fly pollination.  Annals of the Missouri Botanical Garden 517-534.
  40. Bernhardt, P. & Walker, K.  1996.  Observations on the foraging preferences of Leioproctus (Filiglossa) Rayment (Hymenoptera: Colletidae) in eastern Australia.  Pan-Pacific Entomologist 72:  130-137.
  41. Bernhardt, P. & Weston, P.H.  1996.  The pollination ecology of Persoonia
    (Proteaceae) in Eastern Australia.  Telopea 6: 775-803.
  42. Clinebell, R. & Bernhardt, P.  1998.  The pollination ecology of five species of Penstemon (Scrophulariaceae) in the tallgrass prairie.  Ann. Missouri Bot. Gard. 85: 126-136.
  43. Allen-Wardell, G., Bernhardt, P., Bitner, R., Burquez, A., Buchmann, S., Cane, J., Cox, P.A., Feinsinger, P., Ingram, M., Inouye, D., Jones, C.E., Kennedy, K., Kevan, P., Koopowitz, H., Medellin, R., Medellin-Morales, S., Nabhan, G.P.  1998.  The potential consequences of pollinator declines on the Conservation of biodiversity and stability of food crop yields. Conservation Biology 12: 8-17.
  44. Goldblatt, P., Bernhardt, P. & Manning, J.  1998.  Pollination of petaloid geophytes by monkey beetles (Scarabaeidae; Rutellinae: Hoplini) in southern Africa. Annals of the Missouri Botanical Garden 85: 214-230.
  45. -----., Manning, S. & Bernhardt, P.  1998.  Notes on the pollination of Gladiolus brevifolius (Iridaceae) by bees (Anthophoridae) and bee mimicking flies (Psilodera: Acroceridae). Journal of the Kansas Entomological Society 70: 297-304.
  46. -----., Manning, J.C. & Bernhardt, P.  1997.  Adaptive radiation of bee-pollinated Gladiolus species in southern Africa.  Ann. Missouri Bot. Gard. 85: 492-517.
  47. Goldblatt, P. & Bernhardt, P.  1998.  Pollination of Moraea species (Iridaceae) with a staminal column.  Ann. Missouri Bot. Gard. 86: 47-56.
  48. Goldblatt, P., Manning, J.C. & Bernhardt, P.  1999.  Evidence of bird pollination in Iridaceae of southern Africa.  Adansonia 21: 25-40.
  49. Bernhardt, P.  2000.  Convergent  evolution and adaptive radiation of beetle-pollinated angiosperms.  Plant. Syst. Evol. 222: 293-320.
  50. Goldblatt, P., Manning, J.C. & Bernhardt, P. 2000,  Adaptive radiation of pollination mechanisms in Sparaxis (Iridaceae: Ixioideae).  Adansonia 22: 57-70.
  51. Tucker, S.C.  & Bernhardt, P. 2000. Floral ontogeny, pattern formation, and evolution in  Hibbertia and Adrastaea (Dilleniaceae).  American Journal of Botany 87: 1915-1936.
  52. Goldblatt, P., Bernhardt, P. &  Manning, J.C. 2000.  Adaptive radiations of pollination mechanisms in Ixia (Iridaceae: Crocoideae).  Ann. Missouri Bot. Gard. 87: 564-577.
  53. -----., Manning, J.C. & Bernhardt, P. 2001.  Radiation of pollination systems in Gladiolus (Iridaceae; Crocoideae) in southern Africa.  Ann. Missouri Bot. Gard. 88: 713-734.
  54. Lipow, S.R., Bernhardt, P. & Vance, N. 2002.  Comparative rates of pollination and fruit set in widely separated populations of a rare orchid (Cypripedium fasciculatum). Int. J. Plant Sci. 163: 775-782.
  55. Goldblatt, P., Bernhardt, P., Manning, J.C. 2002. Floral biology of Romulea (Iridaceae: Crocoideae): a progression from a generalist to a specialist pollination system. Adansonia ser 3, 24: 243-262
  56. Bernhardt, P., Sage, T., Weston, P., Azuma, H., Lam, M., Thien, L.B. and Bruhl, J. 2003. The pollination of Trimenia moorei (Trimeniaceae): Floral volatiles, insect/wind pollen vectors and stigmatic self-incompatibility in a basal angiosperm. Annals of Botany 92: 445-458.
  57. Thien, L.B., Sage, T.L., Jaffre, T., Bernhardt, P., Pontieri, V., Weston, P.H., Malloch, D., Azuma, H., Graham, S.W., McPherson, M.A., Hardeep, C.R., Sage, R.F. & Dupre. J.L. 2003. The population structure and floral biology of Amborella trichopoda (Amborellaceae). Ann. Missouri Bot. Gard. 90: 466-490.
  58. Tucker, S.C. and Bernhardt, P. 2003. Developmental evidence for stamen number reduction in populations of Hibbertia fasciculata (Dilleniaceae). Plant Systematics and Evolution 240: 107-114.
  59. Goldblatt, P., Bernhardt, P., Vogan, P. & Manning, J.C. 2004. Pollination by fungus gnats (Diptera: Mycetophilidae) and self-recognition sites in Tolmiea menziesii (Saxifragaceae). Plant Systematics and Evolution 244: 55-67.
  60. Goldblatt, P., Nanni, I., Bernhardt, P. & Manning, J.C. 2004. Floral biology of Hesperantha (Iridaceae: Crocoideae): How minor shifts in floral presentation change the pollination system. Annals of the Missouri Botanical Garden 91: 186-206.
  61. Vance, N.C, Bernhardt, P., & Edens, R. 2004. Pollination and seed production in Xerophyllum tenax (Melanthiaceae) in the Cascade Range of central Oregon. American Journal of Botany 91: 2060-2068.
  62. Goldblatt, P., Manning, J.C. & Bernhardt, P. 2005. The floral biology of Melasphaerula (Iridaceae: Crocoideae): Is this monotypical genus pollinated by March flies (Diptera: Bibionidae)? Annals of the Missouri Botanical Garden 92: 268-274.
  63. Goldblatt, P., Bernhardt, P. & Manning, J.C. 2005. Pollination mechanisms in the African genus Moraea (Iridaceae, Iridoideae): Floral divergence and adaptation for pollinators. Adansonia 27:21-46.
  64. P., L., Luo, Y.B., Bernhardt, P., Yang, X.Q. & Kou, Y. 2006. Deceptive pollination of the lady’s  slipper Cypripedium tibeticum (Orchidaceae). Plant Systematics & Evolution 262: 53-2006.
  65. Bernhardt, P. & Goldblatt, P. 2006. The role of phylogenetic constraints in the evolution of pollination mechanisms in Iridaceae of Sub-Saharan Africa,  Aliso 22: pp. 434-444.

Abstracts and Communicated Papers

  1. Bernhardt, P.  1983.  Bird and insect pollination of some Acacia spp. in Victoria.  International Group For the Study of Mimosoideae 11:  50-52.
  2. Hough, T., Bernhardt, P., Knox, R.B., & Williams, E.G.  1984.  Use of fluorochromes in pollen biology.  p. 207.  In, Pollination `84.  Williams, E.G. & Knox, R.B. (eds.).  School of Botany U. of Melbourne.
  3. Bernhardt, P.  1984.  Identification of a mistletoe in an illustration by Ludwig Becker (1861).  The Golden Bough 4:  2-3. 
  4. -----.  1988.  Sequential pollination syndromes in the Orchidaceae of southeastern Australia.  Missouri Academy of Sciences-Senior Division.
  5. -----.  1989.  Biogeography and floral evolution in the Geoblasteae (Orchidaceae):  A case study.  Sixth International Congress of The Pacific Science Association.  Vina del Mar, Chile.
  6. -----.  1993.  Anther Adaptations For Animal Pollination.  Fifteenth International Botanical Congress, Tokyo, Japan.
  7. -----.  1995.  The Legacy of Tarlton Rayment.  Australasian Pollination Ecologists Society 3:  48.
  8. -----.  1996.  The floral biology of Persoonia (Proteaceae); A Symposium on the Biology of the Proteaceae.  Royal Botanic Gardens, Melbourne, The 1996 Commemorative Conference.
  9. -----.  2000.  The Bernhardt Top 10.  Plant Science Newsletter (Winter). 
  10. Kay, E. & Bernhardt, P. 2002. Evolution of vertebrate pollination in Passiflora spp. of the Greater Antilles.  Abstracts of the Tropical Biology Meeting. Panama City, Panama.
  11. Vogan, P., Vance, P., Edens, R. & Bernhardt P. 2003.  Evidence for an Early but 'Leaky' Self-Incompatibility Response in Xerophyllum tenax (Melanthiaceae). Fourth International Sysmposium on Grass Systematics and the Evolution of Monocotyledons, Pomona, California. 

Foreword

  1. Bernhardt, P. 2004. A Garden of Paper and Ink. In, Flower Chronicles; the legend and lore of fifteen garden favorites by E. Buckner Hollingsworth. University of Chicago Press, Chicago, illinois, U.S.A.

Popular Articles (partial list)

  1. -----.  1977.  San Salvador's Urban Orchids.  Natural History Magazine (November). 
  2. -----.  1980.  White Nun & Yellow Nymph.  Good Gardening: Australia and New Zealand (October):  12-15.
  3. -----.  1981.  Pollinating Possums.  Garden (Jan.-Feb.): 22-25.
  4. -----.  1981.  A Country of Mistletoes.  Garden (Nov.-Dec.): 19-22.
  5. -----.  1984.  A Sanctuary For The Dreamtime.  Garden (Jan.-Feb.):  4-7.
  6. -----.  1984.  The Fiendish, Noxious, Wicked Orchid.  Garden (Sept.-Oct.): 9-15.
  7. -----.  1988.  Queen of The Waterlilies.  Garden (Sept.-Oct.): 6-8.
  8. -----.  1990.  The Botanical Detective; Hard Pineapples, Soft Sculptures.  The Sydney Review (Dec.): 6.
  9. -----.  1991.  The Botanical Detective; A Fig Is A Fig Is A Syconium?  The Sydney Review (April):  6.
  10. -----.  1991.  The Botanical Detective; A Buncha Daffs, Please.  The Sydney Review (Sept.): 5.
  11. -----.  1993.  The Secret Lives of Bulbs.  The New York Times Op-Ed.  p. 17.  March 21.  
  12. -----.  1995.  The Botanical Detective; The Return of Fu Manchu.  The Sydney Review (April): 9.
  13. -----.  1995.  The Botanical Detective; The Orchid That Wears A Hat.  The Sydney Review (Sept.): 7.
  14. -----.  1995.  The Bat in The Hat: Flying Foxes In Australian Children's Literature.  Bats 4: 15-17.
  15. -----.  1995.  A Prickly Mystery Is Solved.  The Nutcote News (Winter): 3.
  16. -----.  1995-1996.  A Berry With Bounce.  The Sydney Review (Dec.-Jan.): 9.
  17. -----.  1996.  The Botanical Detective; Gay as A Gladiolus?  The Sydney Review (Feb.): 6.
  18. -----. 2000.  Hardy in St. Louis (colchicums). The St. Louis Gardener (Fall/Winter): 14-16
  19. -----. 2001.  Review of “New World Botany: Columbus to Darwin” by R.H. Peterson.  Plant Talk 26: pp. 42-43.
  20. -----,  2002. Restoring Rainforest the Australian Way.  Plant Talk 30: 25-28.
  21. -----. 2003. An Orchid Grows in Hollywood. Plant Talk
  22. -----. 2003. Perfect Pitch. Plant Talk 33: 34-35. 
  23. ----- &  Edens, R. 2004. A Fertility Clinic for Flora. Plant Talk 36: 27-31.
  24. -----. 2006. Rica Erickson: Australia’s enduring source of botanical inspiration. Plant Talk 43: 7.
  25. ----. 2006. Obituary, Professor John Dwyer. Plant Talk 43: 39-40.

 
Peter Bernhardt in Oregon forest site where he works on Cypripedium montanum (photo: Dr Andy Huber) 

 
Close-up of an inflorescence of C. montanum (photo: Dr Andy Huber)


Close-up of a hunting wasp in the flower of Penstemon pennellianus (photo: Dr Andy Huber)


New bee species (Lasioglossum sp. nov.) collected on bitter vine (Trimenia) with Peter Weston at Cunnawara National Park in NSW