Population variation and conservation status of a rare Tasmanian endemic, Eucalyptus cordata

<i>Eucalyptus cordata</i> (heart-leaved silvergum) is a regional endemic confined to the southeast of Tasmania. It is placed in the informal Subseries Cordatinae (Subgenus <i>Symphyomyrtus</i>; section Viminales) by Pryor and Johnson (1971). It is broadly grouped with other endemics such as <i>E. gunnii</i>, <i>E. morrisbyi</i> and <i>E. urnigera</i> as well as with mainland species such as <i>E. pulverulenta</i> and <i>E. cinerea</i> (pryor and Johnson 1971). Affinities to <i>E. urnigera</i> (Mueller1880; Brett 1938) and <i>E. pulverulenta</i> (Mueller 1880; Baker 1902; Maiden 1913; Hall and Brooker 1972) have been specifically noted. <i>E. cordata</i> is planted widely as an ornamental. It is usually homoblastic and the persistent, highly glaucous, cordate juvenile foliage is a distinctive feature of the species (Hall and Brooker 1972).