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.
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.
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 Unpublished report Botany Division DSIR, Lower Hutt.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