Displaying 126 - 150 out of 1575 Object(s)

Term Definition
Aril A fleshy outgrowth from the base of the funicle. Aril
Aril (arillate) A fleshy covering or appendage of a seed derived from the funicle. Aril (arillate)
Aril basal An aril located at the base of the seed. Aril basal
Aril basal-lateral An aril starting at the base and extending part way up the side of the seed. Aril basal-lateral
Aril half I-beam An aril that runs the length of the side of the seed and then abruptly turns to cover one or both ends of the seed. Aril half I-beam
Aril lateral An aril that runs along the side of the seed such as in many, but not all, species of Eschweilera. Aril lateral
Aril spreading The aril spreads around the entire seed and, thus, looks like a sarcrotesta. In contrast to a sarcotesta, a spreading aril arises from the I-beam aril and not the seed surface. Aril spreading
Arilo Estructura carnosa que recubre a la semilla o apéndice carnoso derivado del funículo en una semilla. El arilo ayuda a la dispersión de las semillas por animales, éstos se llevan la semilla y solamente ingieren el arilo o ingieren la semilla completa con el arilo; en el último caso, el arilo es digerido y la semilla usualmente es excretada en algún otro sitio. Comparar con eleosoma y sarcotesta Arilo
Arilo basal-lateral Se refiere cuando el arilo empieza en la base y se extiende parcialmente sobre sobre un lado de la semilla Arilo basal-lateral
Arilo general Se refiere al tipo de arilo que recubre totalmente a una semilla, de este modo es parecido a una sarcotesta Arilo general
Arilo lateral Se refiere cuando el arilo está dispuesto sobre un lado de la semilla; por ejemplo, en algunas especies de Eschweilera (Lecythidaceae). Arilo lateral
Armed Plants provided with prickles, spines, or thorns. Armed
Aroid The common name for a member of the plant family Araceae. Aroid
Articulation — Articulation
Articulation A joint between two separable parts, e.g., between a leaf and a stem or between a lower and upper part of a pedicel, Articulation
Asexual reproduction Referring to the production of new plants not involving the fusion of sperm and eggs, e.g., vegetation reproduction by buds or runners. Asexual reproduction
Asymmetric Referring to a structure that can be divided into numerous mirror-image halves. This and its associated terms are usually, but not exclusively, applied to flowers. Opposite of symmetric. Asymmetric
Asymmetric leaf base Referring to a leaf base in which the two sides do not attach to the petiole at the same place, i.e., one is attached to the petiole higher than the other is attached. Asymmetric leaf base
Attenuate Tapering very gradually to a narrow tip. Attenuate
Auricle An ear-shaped appendage; for example, on the lip of an orchid or at the apex of the leaf sheath of Poaceae; also used for appendices not so ear-shaped, for example the appendices arising at the junction between the claw and the blade of clawed petals. Auricle
Auriculate (auricled) Referring to an organ or structure, such as a leaf blade, with earlike lobes, which usually are situated at the base. Auriculate (auricled)
Autochorous A type of seed dispersal in which the diaspore is ejected by the action of the parent plant. Autochorous
Autogamy (autogamous) Referring to fertilization resulting from the union of a sperm and an egg from the same plant. Autogamy (autogamous)
Autotroph (autotrophic) Capable of synthesizing complex organic substances from simple inorganic substrates, i.e., it photosynthesizes. Autotroph (autotrophic)
Awn A bristle or hairlike appendage; e.g., the terminal extension of the midvein of the glume, palea, or lemma in the Poaceae. Awn