absent internal phloem

Listing 1 - 4 from 4 for absent internal phloem

Angiosperm Families - Implicit Attributes
... absent. Medullary bundles absent. Internal phloem absent. The secondary phloem not stratified. Xylem without tracheids; without fibre tracheids; without libriform fibres; with vessels. Tile cells absent ...
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Angiosperm Families - Acanthaceae Juss.
... absent. Medullary bundles present (rarely), or absent. Internal phloem present, or absent. Secondary thickening developing from a conventional cambial ring. ‘Included’ phloem absent ...
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APSnet Education Center - Introductions to the Major Pathogen Groups - Introduction to Parasitic Flowering Plants
... rely totally on the contents of the xylem and the phloem of the host. All holoparasites are obligate parasites. Although ... Viscaceae never forms epicortical roots, but instead forms a complex internal organ called the endophyte. This structure is composed of portions ... into the host during the winter when host leaves are absent. In contrast, Arceuthobium (dwarf mistletoe) produces very little of its ...
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Bananas and plantains
... the pulp subsequently is produced by the enlargement of the internal tissues of the ovary, particularly from the inner face ... a fish diet (protein). Unfortunately, early accounts of banana are absent. The oldest records of edible bananas come from India (600 ... disease, a fungus (Fusarium oxysporium cubense), which attacks the phloem. Fortunately, some banana clones showed resistance in the field, ...
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