adj
Of, or derived from aconite.
n
(botany) A spongy, airy tissue found especially in the roots of aquatic plants
adj
Relating to an aerenchyma
n
(botany, archaic) vascular tissue of plants, consisting of spiral vessels, dotted, barred, and pitted ducts, and laticiferous vessels
n
A root epidermal cell that does not produce a root hair
adj
Relating to the basidium.
n
(botany, obsolete) Dotted or pitted ducts or vessels forming the pores seen in many kinds of wood.
n
(botany) An immature piece of tissue that has arms or needles
n
(botany) A mechanical, supportive ground tissue in plants containing chloroplasts.
n
laticiferous tissue, consisting of irregularly branching and anastomosing vessels
adj
Of or relating to cinenchyma.
adj
Relating to collenchyma.
n
(cytology) A type of branched cell present in collenchyma
n
(botany) A specific type of parenchyma cell located in the phloem that assists the sieve-tube cell in its function.
n
Reaction wood, in gymnosperms and amborella, that forms on the side of the part which is under compression and straightens its bend, and which has a lower percentage of cellulose and a higher percentage of lignin than normal wood.
adj
Obsolete form of coenenchymatous. [Composed of coenenchyme]
n
The parenchyma of leaves.
n
(biology) The primitive formative juice, from which the tissues, particularly the cellular tissue, are formed.
n
(botany) In a plant stem or root, a cylinder of cells that separates the outer cortex from the central core. The endodermis controls flow of water and minerals within the plant. In most plants, this tissue is restricted to the roots.
n
(botany) A discrete bundle of vascular tissue.
n
A kind of specialized cell located in the lower leaf epidermis of plants. Pairs of guard cells surround tiny stomatal airway pores and regulate their opening and closing.
n
(botany) A layer of tissue beneath the epidermis in plants, performing the physiological function of strengthening the epidermal tissue. In phanerogamous plants it is developed as collenchyma.
n
(botany) A meristem found as a "slice" within an organ and allowing lengthening in a middle position.
n
(botany) Meristem forming a cylinder within some plants' organs (primarily stems, branches and roots) and allowing them to increase in girth (lateral growth).
n
(biology) A sheath of microtubules which surrounds and extends tailwards from the nucleus of developing spermatids.
n
(botany) tissue composed of spheroidal cells
n
(botany) The plant tissue composed of totipotent cells that allows plant growth.
adj
Of or pertaining to the meristem
n
(biology) A small, triangular stomatal precursor cell that functions temporarily as a stem cell in a meristem.
n
(biology) The part of xylem, developing after protoxylem, that has larger cells and vessels.
n
An opening in the membranes surrounding the ovum, by which nutrition is assisted and the entrance of the spermatozoa permitted.
n
(botany) The tissue which surrounds and protects the embryo and lies inside of the integuments.
n
A sclereid that forms the hypodermal layer in many fruits and seeds
n
(botany) Any of a layer of elongated cells, near the surface of leaves, that have chloroplasts that absorb a major portion of the light energy used by the leaf
adv
With regard to the parenchyma
adj
(botany) Consisting of or relating to the cellular tissue making up the softer parts of leaves, pulp of fruits, bark and pith of stems, etc.
adj
Alternative form of parenchymatous [(anatomy, zoology) Consisting or or pertaining to parenchyma; parenchymal.]
n
(botany) The outer layer of plant tissue comprising the phellem, phellogen and the phelloderm.
n
(botany) The innermost parenchymatous tissue of the periderm of some plants
n
(botany) The tissue of young cells that produces the phellem.
adj
Having bubbles or vacuoles
n
(biology) The tissue (prosenchyma or pseudoparenchyma) of a fungus
adj
Relating to plectenchyma
n
(botany) A tissue consisting of long and slender tubular cells, of which wood is mainly composed.
n
The part of a meristem that contains undifferentiated cells
n
(botany) The tissues formed of elongated cells, especially those with pointed or oblique extremities, such as the principal cells of ordinary wood.
adj
Relating to the prosenchyma.
adj
Relating to the prosenchyma.
adj
Alternative form of prosenchymatous [Relating to the prosenchyma.]
n
The form of phloem that is initially formed, composed of narrow, thin-walled cells
n
The first xylem to form in a plant.
adj
Having pseudoparenchymata
adj
Relating to pseudoparenchymata
n
A minute sphere composed of rhabdoliths.
n
A reduced form of sclerenchyma cells with highly thickened, lignified walls.
n
Alternative form of sclereid [A reduced form of sclerenchyma cells with highly thickened, lignified walls.]
adj
Of, pertaining to, or composed of sclerenchyma
n
Alternative form of sclerenchyma [(botany) A mechanical ground tissue, impermeable to water, which consists of cells having narrow lumen and thick, mineralized walls of lignin; present in stems, vascular bundles (of monocots), seed coverings, and vein and tips of leaves.]
n
(zoology) The condition of being sclerocarpic
n
(botany) The thickening matter of woody cells; lignin.
n
One of the long, slender, conducting cells of the phloem that do not form a constituent element of a sieve tube, but which are provided with relatively unspecialized sieve areas, especially in the tapering ends of the cells that overlap those of other sieve cells. Sieve cells are typically associated with gymnosperms.
n
(botany) A type of sclerenchyma cell located in the phloem that is involved in the movement of carbohydrates.
n
(botany, obsolete) sclerenchyma
n
Reaction wood, in angiosperms, that forms on the side of the part which is under tension and pulls it upward, and which has a higher percentage of cellulose than normal wood.
n
(botany) A cellular layer derived from the nucleus of an ovule and surrounding the embryo sac.
n
(cytology) A specialized epidermal cell in insects, associated with the formation of the socket around the base of a bristle.
n
(botany) A projection from the cell wall across the cell cavity of the ducts of certain plants.
n
(botany) A tracheid cell.
n
(botany) An elongated cell found in plant xylem whose major function is to carry water.
n
(botany, dated) A vegetable tissue consisting of tracheae.
n
(botany, phytotomy) The xylem, phloem, and associated tissues in a vascular plant.
n
(botany) A spongy, usually pale, multiseriate epidermis (i.e. consisting of multiple layers of cells) covering the roots of some kinds of plants, especially plant species with an epiphytic or semi-epiphytic habit. Examples include various orchid and Clivia species
n
(botany) the vertical and usually axially arranged parenchyma of the xylem that is believed to function chiefly in carbohydrate storage
n
lignified, differentiated tissues produced on woody plants as a response to wounding
n
(botany) A vascular tissue in land plants primarily responsible for the distribution of water and minerals taken up by the roots; also the primary component of wood.
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