megasporophyll


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Related to megasporophyll: microsporophyll, megasporangium

megasporophyll

or

macrosporophyll

  1. the modified leaf that carries the MEGASPORANGIUM.
  2. the CARPEL of flowering plants.
References in periodicals archive ?
7) the axis carried two to 30 scales, including four to six " megasporophylls " with terminal inverted ovules.
8), the axis of the short shoot had become rudimentary and bore five distal sterile scales and two or three basal stalk-like megasporophylls, the whole, with the subtending bract, corresponding to the bract and ovuliferous scale of a modern pine cone.
both of which share its small megasporophyll but are otherwise larger in
proportions in all respects and its larger and broader megasporophyll
Megasporophylls not organized into a determinate strobilus but, rather,
Ovulate strobili of numerous ovule-bearing, stalked megasporophylls,
Ovulate strobili (female cones, seed cones, megastrobili, megasporangiate strobili) consisting of a solitary ovule that is terminal, sessile or on a peduncle to 1.5 cm long; sterile scales persistent, 6-14, spirally arranged or opposite and decussate; mature ovule or seed surrounded by an aril (a fleshy part of the megasporophyll that develops from the axis or apex of the ovule- bearing axillary shoot); aril globose to ovoid or oblong, 5-30 x 10-15 mm, sweet, pulpy, red, white, green, or purple; seed dry and nutlike, with 2 cotyledons.
The fleshy structure in Cephalotaxus is the outer layer of the integument of the ovule (Singh, 1961) and, in the Podocarpaceae, the "aril" is formed from outgrowths of the megasporophyll and part or all of the ovuliferous scale, sometimes even including the bract (Florin, 1954; Keng, 1969; Buchholz, 1934; Wilde, 1944).
natalensis cones during pollen shed, two of which were also observed on receptive female cones, and were mainly active between the tightly-packed megasporophylls, strongly suggesting their role in pollination (Suinyuy et al., 2010) (Table 1).
Megasporophylls 30-50, laxly grouped, forming an oblate group 15-21 cm