Griseliniaforst. fil. —Anomaly or link

Abstract

New Zealand and South American species of Griselinia are compared with other genera of the Comaceae. Araliaceae. and Escalloniacea. The main features examined are the morphology and anatomy of the shoot. the anatomy of the secondary xylem, and the vasculature of the flower. While Griselinia resembles all these families in some respects it does not fit within the boundaries of any one family. The implications of the complex inter-relationships between these and other families are discussed. and it is concluded that the evidence at present available gives little support to the retention of Griselinia in the same family as Comus, though it is insufficient to settle the problem of its placement in any existing family.

Floral Structure of Extant Quintinia (Paracryphiales, Campanulids) Compared with the Late Cretaceous Silvianthemum and Bertilanthus

“…The vascular pattern in the gynoecium is simple in Quintinia, with a dorsal and two lateral bundles (for Quintinia, see also Philipson 1967). The same pattern is apparently also present in Silvianthemum and Bertilanthus, but the bundles are not very clear in the fossil material.…”

Biological flora of New Zealand 12:Griselinia lucida, puka, akapuka, akakōpuka, shining broadleaf

“…The midrib is raised on both sides, especially towards the leaf base. Petioles are 2.5Á5 cm long (Dillon & Mun˜oz-Schick 1993), with varying degrees of reddish-purple colouring and a sheath-like base pressed closely to the stem (Philipson 1967) (Fig. 1A).…”

“…1A). In mature shoots, the axillary buds are frequently separated from the petiole because of displacement during growth (Philipson 1967;Bell 2008).…”

“…Water retention appears to be an important function with a thick cuticle covering the small, rhomboidal, upper epidermal cells and an adjacent thick layer of hypodermis, or water cells (Oliver 1930;Dawson 1966;Philipson 1967). Beneath the hypodermis is a layer of oblong palisade cells perpendicular to the cuticle.…”

A review of the genus <i>Curtisia</i> (Curtisiaceae)

“…Its position within the Com aceae had been stable for a long time (Harms 1898;Wangerin 1910;Philipson 1967;Cronquist 1981; Thom e 1992) but its isolated posi tion within the family was noted-hence the subfamily Curtisioideae o f Harms (1898). Evidence had gradually accumulated (Adams 1949;Eyde 1967;Yeramyan 1971) for separating it as a monotypic family Curtisiaceae Takht.…”