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Pourretia alpestris

Interesting Facts

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Description

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Family Bromeliaceae

Herbs or rarely shrubs , epiphytic, lithophytic, or terrestrial . Leaves spirally arranged , usually rosulate, sessile, simple , veins parallel, base dilated , sheathing , margin often spinose serrate or sometimes entire. Inflorescence terminal or lateral , scapose or sessile, a panicle, raceme , spike, or head , sometimes reduced to solitary, pseudolateral flowers; bracts usually brightly colored and conspicuous . Flowers bisexual or sometimes functionally unisexual , 3-merous. Sepals and petals each 3, distinct , free or basally connate ; petals often brightly colored, basal margin with a pair of scalelike appendages . Stamens 6, in 2 whorls of 3; filaments free, connate, or collectively or individually adnate to petals; anthers 2-celled, dehiscing by longitudinal slits. Gynoecium of 3 carpels united to form a compound , 3-loculed, superior or very often partly or wholly inferior ovary ; ovules few to usually ± numerous in each locule; placentation axile . Style terminal and often 3-parted; stigmas papillose . Fruit a berry or less often a septicidal capsule, or seldom compound and fleshy . Seeds usually winged or plumose ; endosperm mealy ; embryo small to fairly large.

About 50 genera and 2000--2600 species: mainly tropical America, except for Pitcairnia feliciana (A. Chevalier) Harms & Mildbraed in tropical W Africa; one species (introduced ) in China.[1]

Taxonomy

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Similar Species

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Members of the genus Pourretia

ZipcodeZoo has pages for 0 species, subspecies, varieties, forms, and cultivars in this genus:

More Info

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Further Reading

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Notes

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Contributors

Identifiers

Footnotes

  1. Wei-liang Ma & Bruce Bartholomew "Bromeliaceae". in Flora of China Vol. 24 Page 18. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
Last Revised: 2012-07-26