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Pruneae

(Tribe)

Overview

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Taxonomy

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The Tribe Pruneae is a member of the Subfamily Spiraeoideae. Here is the complete "parentage" of Pruneae:

The Tribe Pruneae is further organized into finer groupings including:

Genera

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Maddenia

Trees or shrubs, deciduous, polygamous dioecious. Branches unarmed. Winter buds large, oblong to ovoid, with several scales. Stipules large, persistent, margin glandular. Leaves alternate, simple; leaf blade margin with gland-tipped simple, double, or incised teeth. Inflorescences inserted apically on branchlets, racemose, many-flowered; bracts soon caducous. Pedicel short. Hypanthium campanulate. Sepals and petals essentially identical. Perianth segments 10-12, to 3 mm. Stamens 20-40, in 2 whorls, irregularly inserted on rim of hypanthium. Bisexual flowers: ovary superior, (1-or) 2-loculed, glabrous; ovules 2 per locule, parallel, pendulous; style terminal, slender, ± as long as stamens; stigma disc-shaped. Female flowers: stamens reduced to staminodes; carpels 2; ovary glabrous; style much shorter than staminodes; stigma capitate. Fruit a 1-or 2-seeded drupe, oblong, ± flat; mesocarp thin, fleshy, not splitting when ripe; endocarp bony, ovoid, 3-angled, apex acute.[1] [more]

Oemleria

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Prinsepia

Shrubs, erect or scandent, deciduous. Branches with leafless or few-leaved axillary spines, pith lamellate. Winter buds small, with a few hairy scales. Stipules small, soon caducous. Leaves alternate, sometimes fascicled on short shoots, simple; petiole short, often ill-defined, with or without slender and inconspicuous nectaries; leaf blade glabrous, margin entire or serrulate. Inflorescences solitary or fascicled on short branchlets in leaf axils of previous year's branches, racemose, or 1-flowered. Flowers bisexual. Pedicel absent or essentially so. Hypanthium mouth with an annular disc. Sepals 5, unequal, persistent in fruit. Petals 5, white, cream, or yellow, suborbicular, base clawed. Stamens 10 or more, in 2 or more whorl, inserted on hypanthium rim; filaments short. Ovary superior, glabrous, 1-loculed; ovules 2, parallel, pendulous. Style lateral; stigma capitate. Fruit a drupe; mesocarp fleshy; endocarp leathery, smooth or slightly furrowed.[2] [more]

Prunus

Prunus is a genus of trees and shrubs, including the plums, cherries, peaches, apricots and almonds. It is traditionally placed within the rose family Rosaceae as a subfamily, the Prunoideae (or Amygdaloideae), but sometimes placed in its own family, the Prunaceae (or Amygdalaceae). There are around 430 species of Prunus, spread throughout the northern temperate regions of the globe. [more]

At least 5,961 species and subspecies belong to the Genus Prunus.

More info about the Genus Prunus may be found here.

Bibliography

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Footnotes

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  1. Ku Tsue-chih, Bruce Bartholomew "Maddenia". in Flora of China Vol. 9 Page 432. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org.
  2. Ku Tsue-chih, Bruce Bartholomew "Prinsepia". in Flora of China Vol. 9 Page 389. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org.

Sources

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Last Revised: August 24, 2012
2012/08/24 20:15:03