Displaying 301 - 350 out of 1575 Object(s)

Per Page

• 25
• 50
• 75

Term	Definition
Cloud forest	A mid-elevation vegetation type often covered in clouds. Cloud forest is dominated by low, snarled trees covered with mosses and liverworts. Species of orchids are abundant in this vegetation type and tree ferns are often conspicuous. Depending on local climate, distance from the sea, and isolation from other mountain ranges, cloud forest can be found between 500 and 4000 meters but it is most frequent between 1000 and 2000 meters.
Cloud forest	A mid-elevation vegetation type often covered in clouds. Cloud forest is dominated by trees covered with mosses and liverworts. Species of orchids are abundant in this vegetation type and tree ferns are often conspicuous. Depending on local climate, distance from the sea, and isolation from other mountain ranges, cloud forest can be found between 500 and 4000 meters but it is most frequent between 1000 and 2000 meters.
Coevolution	A reciprocal process in which adaptations of one organism promote adaptations in another; e.g., the nocturnal anthesis of a cup-shaped flower and the elongated snout of a bat that pollinates that flower.
Coherent	Coming into contact but not fused; e.g., the anthers of species of Asteraceae and Campanulaceae. Same as connivent.
Coiled pedicel	A pedicel that coils like a spring after the fruits start to form, a mechanism found in a few species of plants and functions to bring the fruits closer to the ground, presumably to make it easier for animals to disperse the seeds.
Coleoptera	An order of insects including the beetles and weevils. Species of Coleoptera, can be pollinators and predators of plants.
Collecting equipment	The equipment needed to collect plants in both temperate and tropical regions. Access the attached PDF for a list of essential equipment used by the senior author of this glossary. For more information about plant collecting see Tropical Plant Collecting: From the Filed to the Internet. This book can be purchased at: http://tecceditora.com/ or Amazon.com.
Collection number	A unique number assigned to a plant collection that includes the name of the collector and a number. Collection numbers should start from 0 and continue sequentially throughout the career of the collector. The collection number of the collection represented by the attached label is Mori et al. 20100. Note that when there are more than two collectors all but the person's name who numbers the collection is reduced to et al. (= and others). For more information about plant collecting see Tropical Plant Collecting: From the Filed to the Internet. This book can be purchased at: http://tecceditora.com/ or Amazon.com.
Colleter	In Lecythidaceae, a multicellular, unbranched glandlike structure found along leaf blade margins. Up to the present only Cariniana estrellensis has been shown to have colleters.
Columella (pl. = columellae)	A woody outgrowth that descends into the fruit from the interior, middle of the operculum.
Column	In the Orchidaceae, the structure formed by the fused androecium and gynoecium.
Column foot	In the Orchidaceae, the fleshy continuation of the base of the column, often more prominent in fruit.
Coma (Comose)	Referring to a structure, such as a seed, the bears tufts of hairs. Wind-dispersed seeds are often comose.
Complanate	A sphere that is flattened at both poles.
Complanate	A sphere that is flattened at both poles or a sphere that is shorter in height than it is in width. The term can refer to both three- and two-dimensional shapes.
Complete flower	A flower with all whorls of floral parts; i.e., calyx, corolla, stamen(s), and gynoecium. Compare with incomplete flower.
Compound	Referring to an organ, such as a leaf, which is divided into smaller units; i.e., leaflets. Opposite of simple.
Compound leaf	Referring to a leaf which is divided into smaller units; i.e., leaflets. Opposite of simple.
Compound pistil	A gynoecium composed of more than one carpel, same as compound ovary.
Concave	Curved inward or hollowed out, as the surface of a saucer or the margin of a leaf blade. Opposite of convex.
Conifer (adj. = coniferous)	Referring to shrubs or trees having cones as their reproductive structures, e.g., pines, spruces, firs,
Connate	Referring to similar structures fused to each other, such as the petals of a sympetalous corolla. Same as fused. Compare with adnate and connivent.
Connivent	Coming into contact but not fused; e.g., the anthers of species of Asteraceae and Campanulaceae.
Contractile roots	Referring to a root that elongates and then contracts, usually to keep a bulb, corm, or rhizome at a certain level in the ground.
Contrafuerte	Proyección leñosa y angosta, localizada entre las raíces secundarias superficiales y la base del tronco de algunos árboles. Ver raíz tabular.
Contraligule	In Cyperaceae, a projection at the summit of the leaf sheath opposite the insertion of the leaf blade.
Convex	Curved outward, as the exterior surface of a sphere. Opposite of concave.
Cordada, cordado (cordiforme)	Con forma de un corazón; como la forma de las hojas de algunas especies de Nymphaea (Nymphaeaceae)
Cordate	Heart-shaped; e.g., the two dimensional shape of a leaf blade, bract, petal., etc.
Cordate (cordiform)	Heart-shaped; e.g., the two dimensional shape of a leaf blade, bract, petal., etc.
Cork	Protective tissue located on the outside of stems, branches, and roots, consisting of the phellogen or cork cambium, the phellem or cork to the outside, and the phelloderm to the inside. Same as periderm.
Cork cambium	The actively dividing tissue that produces cork to the outside and phelloderm to the inside.
Cork warts	Very small brown to reddish-brown dots that appear on the abaxial leaf blade surfaces of some species of Lecythidaceae. They are also called punctations in descriptions by various authors.
Corm	A fleshy below ground storage organ derived from the base of the stem.
Cormlets	Small corm that are produced at the base of a corm.
Cornucopia phenology	A flowering strategy in which a many flowers are produced each day over a relatively long time.
Corolla	The second whorl of floral parts; the collective term for the petals.
Corolla lobe	In a symetalous corolla, the upper, free segments.
Corolla throat	In a sympetalous corolla, the opening into the corolla tube.
Corolla tube	In a gamopetalous corolla, the lower fused part.
Corona	A structure located between the petals and the stamens of some flowers and derived from either of these organs; e.g., in Passiflora (Passifloraceae), some Apocynaceae subfamily Asclepiadoideae, and some Melastomataceae.
Corpusculum	A structure connecting the two translators of the pollinia of Apocynaceae subfamily Asclepiadoideae, sometimes referred to as the “gland.”
Corrugate	Having the suface of an organ wrinkled or wavy.
Cortex	The tissue in a stem or root between the epidermis and the vascular tissue.
Cortex	A band of tissue in a stem or root between the bark and the vascular tissue. The cortex is made of of large, thin-walled parenchyma cells.
Cortical bundle	Referring to a a vascular bundle that penetrates the cortex of the stems of plants.
Cortical bundle	A vascular bundle found in the cortex of a stem.
Costa (adj. = costate)	A rib, sometimes to describe the midrib of a leaf or leaflet or to describe a raised line, less conspicuous than a wing, that extends down an organ such as a hypanthium or a fruit. A costa is less obvious than a wing.
Cotyledon	The leaves (one in monocots and two in dicots) of an embryo that often emerge when the seed germinates. Some cotyledons, however, remain within the seed coat.
Cotyledons	Seed leaves, i.e., the embryonic leaves.

• First
• Previous
• Page / 32
• Next
• Last