Bromeliaceae: Profile of an Adaptive Radiation by David H. Benzing PDF

By David H. Benzing

ISBN-10: 0521430313

ISBN-13: 9780521430319

This booklet offers a synthesis of the broad details to be had at the biology of Bromeliacea, a principally neotropical kinfolk of approximately 2700 defined species. the writer emphasizes reproductive and vegetative constitution, comparable body structure, ecology, and evolution, instead of floristics and taxonomy. Guiding questions comprise: Why is that this relatives inordinately profitable in arboreal (epiphytic) and different in most cases annoying habitats and why is that this relatives so very important to broad fauna past pollinators and frugivores within the woodland cover? remarkable and occasionally novel mechanisms that mediate water stability, tolerance for prime and occasional exposures, and mutualisms with ants have obtained a lot examine and make allowance attention-grabbing comparisons between plant taxa and aid clarify why participants of this taxon express extra adaptive and ecological kind than so much different households of flowering crops. This quantity concentrates on functionality and underlying mechanisms, hence it is going to around out a literature that another way usually ignores uncomplicated biology in prefer of taxonomy and horticulture.

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A) Tillandsia flexuosa with immature axillary ramet and additional offshoots on spent in¯orescence. (B) Grass-like basal ramets produced by many soft-leafed Vriesea species. , mature ramet (C) and immature ramet (D). (E) Stoloniferous Nidularium lymanioides growing as a hemiepiphyte. cost to protect the shoot tip. Soft-leafed exceptions include some Cryptanthus species in Bromelioideae and Brocchinia and Fosterella of Pitcairnioideae; according to certain sequences in the chloroplast genome these genera lie beyond the core taxa of their respective subfamilies (Fig.

Habits: general overview Bromeliads range from small plants even by liliopsid standards to some of the most massive-bodied of the monocots. 4. Shapes of phytotelm (tank-producing) Bromeliaceae. (A±D) Four arrangements of foliage that produce phytotelmata of different numbers, exposures and depths per shoot. (E) Aechmea veitchii with virtually no impoundment capacity. (F) Carnivorous Brocchinia reducta. (G) Mature shoot of Aechmea bracteata cut open to expose central dry chamber for ants and several older leaf bases con®gured to intercept precipitation and litter.

Pitcairnia riparia; Figs. 12B). Arid, relatively stable rooting media in the high Andes, that limit productivity and permit extended life spans respectively, support bromeliads with two more architectures. In addition to the cushion arrangement (direction three) that grants Abromeitiella insulation from cold, desiccating wind, a tuberous partially subterranean stem affords similar advantage under somewhat less demanding circumstances to members of the Puya tuberosa complex (direction four). Species with similarly swollen stems tolerate ®re in rupestral habitats (Fig.

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Bromeliaceae: Profile of an Adaptive Radiation by David H. Benzing

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