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Term	Definition
Caducous	Falling off early. Same as fugacious.
Caespitose (cespitose)	Growing in dense clumps or tufts; e.g., the growth form of some species of Poaceae and Cyperaceae. The clumps are also called tussocks.
Callus	A thickened part of an organ; e.g., in some Orchidaceae, the fleshy outgrowth of the labellum, or in the Poaceae, the hardened base of the spikelet or floret just above the point of disarticulation.
Calycine rim	Referring to a calyx in which the calyx-lobes are fused at their bases to form a rim that extends beyond the summit of the ovary.
Calycine ring	The scar or vestigal calyx-lobes left around the circumference of the fruit at the points where the calyx-lobes (sepals) were attached.
Calyculus	Rimlike calyx of Loranthaceae or a lower row of phyllaries of Asteraceae that can be distinguished from the remaining phyllaries.
Calyx (plural = calyces)	The outer circle or first whorl of floral parts; a collective term for the sepals.
Calyx-lobe	Similar to sepal but used to describe the lobe of a calyx with the sepals fused at their bases and with free lobes at the apex; less frequenly to describe species of some families that have inferior ovaries with the lower part of the calyx hypothesized to be fused to the ovary at the base but with free lobes departing from the apex of the ovary.
Calyx-lobes	The outermost whorl of floral parts and nearly equivalent to sepals. See the general glossary for definitions of calyx and sepals.
Calyx-lobes imbricate	Overlapping of the adjacent edges of the calyx-lobes or sepals.
Calyx-lobes not imbricate	The base of the sepals do not overlap.
Cambium	The actively dividing tissue located between the xylem and the phloem which produces xylem to the inside and phloem to the outside of the trunk or the stem..
Campanulate	Broadly bell-shaped with a wide mouth; usually used to describe a corolla or the shape of a fruit.
Campanulate fruit	Broadly bell-shaped fruit with a wide mouth.
Campina	A Portuguese term referring to a vegetation type similar to savanna found on white sand soils in the Brazilian Amazon.
Campinarana	A Brazilian name for a low forest growing on white sand which is the first step in plant succession starting with open, white sand areas caused by disturbance, then to campina, followed by campinarana, and finally to terra firme forest.
Campo rupestre	A Portuguese term referring to a rocky kind of savanna, usually at midelevations in Brazil. Species of several plant families; e.g., Asteraceae, Eriocaulaceae, Melastomataceae, Velloziaceae, Xyridaceae, etc., are characteristic of this vegetation.
Camptódroma	Se refiere a un tipo de disposición de los nervios en las hojas, en la que los nervios secundarios no alcanzan el margen y no forman una serie de prominentes arcos submarginales. Comparar con broquidódroma
Canaliculate	A channel or groove that runs the length of a stucture such as a petiole or midrib. Used mostly to describe petioles and midribs.
Canaliculate	A channel or groove that runs the length of a stucture such as a petiole or midrib. Used to describe petioles and midribs.
Canopy tree	A species of tree in which adult individuals occupy the more or less continuous canopy layer of a forest which, in lowland neotropical rainforests, is less than 20 m in height.
Canopy tree layer	A hypothetical layer in tropical rain forest consisting of trees that form a ± continuous layer commonly at a maximum height of about 25–35 meters in the Neotropics.
Capitate	Shaped like a head; having or growing in a head (capitulum).
Capitulum (plural = capitula)	A dense inflorescence of sessile flowers on a dilated receptacle or in a (sub) globose or head-like form; for example, the inflorescences of Asteraceae, some Cyperaceae, Laminaceae, and Rubiaceae.
Capsule	A dry, dehiscent fruit that develops from a syncarpous ovary; it can open in the middle of the locules (loculicidal), along the septa (septicidal), or around the circumference (circumscissile).

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