Pittosporum obcordatum Raoul (1844:121)
Heart-shaped Kōhūhū, Heart-leaved kohuhu
Taxonomy & Nomenclature
Synonym/s: Pittosporum obcordatum var. kaitaiaensis Laing et Gourlay (1935:47); Pittosporum obcordatum var. kaitaiensis Laing et Gourlay (1935:47) [orth. error used by Smith, 2004:18n]
"The Kaitaia plants of heart-leaved kohuhu have been variously given varietal rank (Laing and Gourlay 1926), form rank (Eagle 1982), species rank (Druce 1977) or treated as not warranting special recognition (Cheeseman 1925; Cooper 1956)."
(Clarkson, 1991:10)
Conservation Status
Last record: "about 1841" (Clarkson & Clarkson, 1994:155); 1840-1842 (Raoul, 1846; Laing & Gourlay, 1935:47); 1840's (Wilson, 2012)
Rediscovered (Metcalfe, 2000; Smith, 2004:15; Wilson, 2012) in 1901 (Clarkson, 1991:10; Clarkson & Clarkson, 1994:155) [as synonym kaitaiaensis]; 1920 (Sainsbury, 1923; Clarkson & Clarkson, 1994:155)
Distribution & Habitat
New Zealand
Anatomy & Morphology
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Raoul, M. E. (1844). Annales des Sciences Naturelles, Botanique 2. Paris: Fortin, Masson et Cie.
Other references:
Allan, H. A. (1961). Flora of New Zealand 1: 1-1085. Botany division, D.S.I.R., Christchurch.
Cameron, E. K., de Lange, P. J., Given, D. R., Johnson, P. N. and Ogle, C. C. (1993). New Zealand Botanical Society threatened and local plant lists (1993 revision)New Zealand Botanical Society threatened and local plant lists (1993 revision). New Zealand Botanical Society Newsletter 32: 14-28.
Cheeseman, T. F. (1907). Notes on Pittosporum obcordatum. Trans. N. Z. Inst. 39: 435-439.
Cheeseman, T. F. (1925). Manual of the New Zealand Flora. Government Printer, Wellington.
Clarkson, Bruce D. (1991). Heart-leaved Kohuhu (Pittosporum obcordatum) Rediscovered near Kaitaia. New Zealand Botanical Society Newsletter 26: 10-12.
Clarkson, Bruce D. and Clarkson, Beverely R. (1994). Ecology of an elusive endemic shrub, Pittosporum obcordatum Raoul. New Zealand Journal of Botany 32(2): 55-68. https://doi.org/10.1080/0028825X.1994.10410365
Cooper, R. C. (1956). The Australian and New Zealand species of Pittosporum. Annals of the Missouri Botanical Garden 43: 87-188.
de Lange, P. J., Heenan, P. B., Given, D. R., Norton, D. A., Ogle, C. C., Johnson, P. N. and Cameron, E. K. (1999). Threatened and uncommon plants of New Zealand. New Zealand Journal of Botany 37(4): 603-628. https://doi.org/10.1080/0028825X.1999.9512657
de Lange, P. J., Norton, D. A., Courtney, S. P., Heenan, P. B., Barkla, J. W., Cameron, E. K., Hitchmough, R. and Townsend, A. J. (2009). Threatened and uncommon plants of New Zealand (2008 revision). New Zealand Journal of Botany 47(1): 61-96. https://doi.org/10.1080/00288250909509794
de Lange, P. J., Norton, D. A., Heenan, P. B., Courtney, S. P., Molloy, B. P. J., Ogle, C. C., Rance, B. D., Johnson, P. N. and Hitchmough, R. (2004). Threatened and uncommon plants of New Zealand. New Zealand Journal of Botany 42(1): 45-76. https://doi.org/10.1080/0028825X.2004.9512890
Druce, A. P. (1977). Trees, shrubs and lianes of New Zealand (including wild hybrids). Revised July 1980. Unpublished report Botany Division DSIR, Lower Hutt.
Eagle, A. (1982). Eagle's trees and shrubs of New Zealand: second series. Collins, Auckland.
Enright, Pat. (2005). Pittosporum obcordatum and Ahi Paku, finding rare plants in the eastern Wairarapa. Wellington Botanical Society Bulletin 49: 36-45.
Laing, R. M. and Gourlay, H. W. (1935). The small-leaved species of the genus Pittosporum occurring in New Zealand, with descriptions of new forms. Transactions of the Royal Society of New Zealand 65: 44-62.
Metcalf, L. (2000). New Zealand Trees & Shrubs: A Comprehensive Guide to Cultivation and Identification, Revised 2nd edn. Auckland: Reed.
Raoul, M. E. (1846). Choix de Plantes de la Nouvelle Zelande. Paris: Fortin, Masson et Cie.
Sainsbury, G. O. K. (1923). Notes on Pittosporum obcordatum. Trans. N. Z. Inst. 54: 572-573.
Smith, Philip. (2004). Pittosporum, the misunderstood genus. New Zealand Garden Journal 7(2): 14-18.
Wilson, Hugh. (2012). Pittosporum on Banks Peninsula. Canterbury Botanical Society Journal 43: 11-17.
https://citscihub.s3.amazonaws.com/SAINSBURY_Fissidens_taylorii_var_sainsburyanus.pdf
https://vanishingflora.proboards.com/thread/1007/pittosporum-obcordatum
https://www.nzpcn.org.nz/flora/species/pittosporum-obcordatum/?download=pdf