Introduction - Species Plantarum Programme

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SPECIES PLANTARUM — FLORA OF THE WORLD (1999)
compressed: flattened in one plane, either dorsally (bringing the front and back closer
together) or laterally (bringing the sides closer together).
concolorous: coloured uniformly; the same colour on both sides. cf. discolorous.
conduplicate: folded together, with the fold-line along the long axis (e.g. of cotyledons in a
seed).
cone: in gymnosperms and club-mosses, a group of sporophylls arranged compactly on a
central axis; (loosely) in Casuarinaceae, a woody multiple fruit incorporating the bracts
and bracteoles associated with the flowers; (loosely) in Petrophile and other Proteaceae
the semi-woody multiple fruit made up of nutlets in the axils of closely imbricate floral
bracts which become woody.
conflorescence: a compound inflorescence consisting of two or more unit inflorescences, in
which the main axis does not end in a flower but the axes of the branches do so.
connate: fused to another organ (or other organs) of the same kind.
connective: the part of an anther that connects the lobes.
connivent: coming into contact; converging.
contorted: see convolute.
convolute: of the arrangement of corolla lobes in a bud, a form of imbricate aestivation in
which each segment has one edge overlapping the adjacent segment, like a furled
umbrella.
cordate: of a leaf blade, broad and notched at the base; heart-shaped (in two dimensions).
cordiform: shaped like a heart (in three dimensions).
coriaceous: leathery.
corm: a fleshy, swollen stem base, usually underground, in which food reserves are stored
between growing seasons.
corniculate: bearing, or terminating in, one or more small horns.
corolla: the petals of a flower collectively.
corolline corona: fleshy ridges or outgrowths of tissue attached to the corolla tube, usually
in the lobe sinuses.
corona: a ring of tissue arising from the corolla, perianth or filaments of a flower and
standing between the perianth lobes and the stamens.
corpusculum: the central part of a pollinarium.
cortex: the region of a stem or root surrounding the vascular cylinder but inside the
epidermis.
corymb: a racemose inflorescence in which the pedicels of the lower flowers are longer than
those of the flowers above, bringing all flowers to about the same level.
costa: a rib; a midrib or middle-nerve (when it is the only nerve).
costate: ribbed
costule: the midvein of a pinnule.
cotyledon: the primary leaf (or one of two or more primary leaves) of an embryo.
crenate: with small, rounded teeth; scalloped.
crenulate: minutely scalloped.