ray floret.ĭiscoid: (1) disc-shaped, flat and circular (2) having only disc florets.ĭiscolorous: coloured differently on the two surfaces. haploid, polyploid.ĭisc: an outgrowth of tissue from the receptacle in the form of a ring or plate, sometimes divided into lobes or separate bodies, occurring between whorls of floral parts generally glandular.ĭisc floret (disc flower): usually an actinomorphic flower produced in the central part of the head and with a tubular corolla with more or less equal lobes, as in most Asteraceae. monoecious.ĭiploid: having two lots of the basic set of chromosomes in the nucleus. 3 E.ĭimorphic: occurring in two different forms.ĭioecious: with male and female flowers on different plants. monocotyledons.ĭidynamous: in 2 pairs of unequal length.ĭigitate (palmate): of a compound leaf with 3 or more leaflets arising from one point at top of petiole, Fig. 9 G.ĭicotyledons: a major group of angiosperms (flowering plants) characterized by the embryo usually having two (rarely more) cotyledons (seed leaves). of the branching pattern of stems or veins. monochlamydeous.ĭichotomous: divided into two equal forks, e.g. monochasium.ĭichlamydeous: of a flower, having two whorls of perianth parts, a distinct calyx and corolla. monadelphous.ĭiaspore: the dispersal unit containing the results of sexual reproduction and including non-floral parts (if any)ĭichasium: a cyme in which branches appear in regular opposite pairs. indeterminate.ĭiadelphous: having the stamens united by their filaments into two groups, as in Fabaceae subfamily Faboideae. panicle, thyrsoid, dichasium, monochasium, Fig. arborescent.ĭentate: toothed with rounded or sharp course teeth.ĭepressed: flattened as if pressed down from the top or end, especially of 3 dimensional shapes.ĭeterminate: (1) of growth or branching, with a bud or flower terminating the main axis (2) of an inflorescence (= anthotelic), with the inflorescence or parts of the inflorescence ending in a flower or an aborted but distinctly floral bud, e.g. 15 F.ĭendroid: tree-like in form but not in size. of a fruit, anther etc.ĭeltate: a 2-dimensional triangular shape.ĭeltoid: triangular, but a 3-dimensional solid.ĭendritic: much branched, like the crown of a tree, e.g. reflexed, decurved.ĭehiscent: opening at maturity to release the contents, e.g. indefinite.ĭeflexed: bent sharply downwards. twice as many stamens as the petals or sepals (or less), or an inflorescence ending in a flower or an aborted floral bud. deflexed.ĭecussate: in pairs, with successive pairs borne at right angles to each other. of a petiole extending down the stem as a ridge. 1 J.ĭecurrent: extending downwards beyond the point of insertion, e.g. of inflorescences where the order of branching is more than just the once compound.ĭecumbent: spreading horizontally with the ends growing upwards. evergreen.ĭecompound: several times divided, compounded, e.g. caducous (2) a plant losing its leaves for part of the year, cf. of the leaves and bark of some trees, cf.