bundles absent

Listing 1 - 7 from 7 for bundles absent

Angiosperm Families - Implicit Attributes
... absent. The mesophyll without etherial oil cells; not containing mucilage cells; without sclerenchymatous idioblasts. Stem anatomy. The cortex without cristarque cells. Cortical bundles 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. Pith ...
delta-intkey.com

Angiosperm Families - Acanthaceae Juss.
... . Cork cambium present; initially deep-seated (sometimes), or superficial. Nodes unilacunar. Primary vascular tissue bicollateral, or centrifugal. Cortical bundles absent. Medullary bundles present (rarely), or absent. Internal phloem present, or absent. Secondary thickening developing from a conventional cambial ring. ‘Included’ phloem absent. Xylem with fibre tracheids; with libriform fibres; ...
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Athyriaceae [First Draft]
... . Fronds approximate; stipes nearly as long as lamina, chestnut-brown or stramineous, with two vascular bundles (upwards united as "U" in transverse section of upper part of rachis), more or less ... at lower parte and the base of costules of lowest segments sparsely short-glandular pubescent, or absent. Sori oblong, medial on veinlets, biserial along two sides of costules, spaced each other. Spore ...
hua.huh.harvard.edu

Sinopteridaceae [First Draft]
... , siphonostelic; scales brown, lanceolate, margins entire. Leaves monomorphic to nearly dimorphic, distant or approximate. Petiole straw-colored or sometimes chestnut-brown, glabrous, with 2 vascular bundles at base, adaxially sulcate. Blade ovate-deltate, ovate-lanceolate, less often elongate-lanceolate, herbaceous or papery, finely 2—4-pinnate-pinnatifid, rarely 2-pinnate, nearly glabrous or the ...
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Yucca & Yucca Moth
... ). See More Photographs Of Yucca Plants Yuca (Merremia aurea) in Baja California Yucca leaves contain bundles of elongate fiber cells which can easily be pulled out of the leaf blade like strands ... palpi to collect, compact and carry a pollen ball (pollinium). These enlarged, specially adapted palpi are absent in the male yucca moth. Several pollinia (pollen masses) and a stamen from the flower of ...
waynesword.palomar.edu

MBG: Research: Projects: South America: Venezuelan Guayana
... nearly always present. Sepals 2-14, free or less often fused; petals (2)3-6(-14), free, decussate, imbricate, or convolute, rarely lacking. Stamens usually numerous, often grouped in 2-5 bundles opposite the petals, some stamens or fascicles often replaced by staminodia, or stamens free and numerous (sometimes reduced to 3 or 5); anthers dehiscent by longitudinal or transverse slits or a variety ...
www.mobot.org

Palms in the Cultural Landscape of the Dominican Republic
... . Although disassociated from the control of physical factors, it should be noted that palms are conspicuously absent in areas devoted exclusively to the monoculture of rice or sugar. The Utility of Palms A ... for tying goods for transport (Fig. 17). Antonini also notes the use of palm cordage in wrapping bundles of tobacco. Fronds of cana are also interlaid in tobacco piled for curing and have been ...
www.palms.org