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A mature female big-cone pine (Pinus coulteri) cone, the heaviest pine cone A young female cone on a Norway spruce (Picea abies) Immature male cones of Swiss pine (Pinus cembra) A conifer cone, or in formal botanical usage a strobilus, pl.: strobili, is a seed-bearing organ on gymnosperm plants, especially in conifers and cycads.
The tree produces spiky green fruits about the size of a golf ball, which turn brown and drop off the tree over an extended period beginning in fall and continuing over the winter.
Castanospermum is a monotypic genus in the legume family Fabaceae.The sole species is Castanospermum australe, commonly known as Moreton Bay chestnut or black bean, [1] [6] [7] which is native to rainforested areas on the east coast of Queensland and northeastern New South Wales, and to the southwest Pacific islands of Vanuatu and New Caledonia [3] [8]
Vivipary – This is a feature of many mangrove trees, where the seed germinates when the seed (and fruit) remain joined to the mother plant until the radicle and hypocotyl grow, reach the ground, and establish there. [11] (See also: seeds and germination related sections and articles) Adventitious root systems
The tree is briefly deciduous, and it is during this leafless period that it blooms with umbels of large flowers ranging from creme de minthe to red in color. [17] After blooming, the trees produce several hundred 15 cm (6 in) pods containing seeds surrounded by a fluffy, yellowish fibre that is a mix of lignin and cellulose.
Prumnopitys taxifolia, the mataī (Māori: mataī) or black pine, is an endemic New Zealand coniferous tree that grows on the North Island and South Island. It also occurs on Stewart Island / Rakiura (47 °S) but is uncommon there. [2] It grows up to 40 m high, with a trunk up to 2 m diametre.
The fruit is a flat, oblong indehiscent pod, about 6–12 cm (2.4–4.7 in) long and 2.5 cm (0.98 in) wide, containing four to seven round black seeds, which redden when mature. [ 7 ] Distribution and habitat
There have been reports of pods up to eight feet (2.5 meters) in length. [ 4 ] [ 5 ] This pod, like all legumes , is a single carpel , the largest carpel of any known plant. Inside the pods are ten to fifteen seeds , each of which have a diameter of 6 cm (2.4 in) and a thickness of 2 cm (0.79 in). [ 6 ]