# Search

Title | Synonyms | Category | Limitation | Definition |
---|---|---|---|---|

concave-tapered 2 | = attenuate | base | Gradually diminishing in width or diameter toward the proximal end, the sides longitudinally concave. Corresponds with acuminate for apex shape. | |

truncate 2 | base | Having a generalized proximal boundary that is more or less straight or plane and approximately perpendicular to the central axis. | ||

eared | = auriculate | base | laminar structure | Having two small, rounded, lateral lobes, one to either side, that lie in more or less the same plane as the remainder of the lamina. |

blunt 2 | = obtuse | base | Bluntly angular; having an angular proximal portion whose generalized sides intersect at an angle of 90° or more. | |

sheathing 2 | base | laminar structure | Terete or involute and closely enclosing the supporting axis for some distance above the point of insertion. | |

cuneate 1 | = obtriangular, wedge-shaped | base | laminar structure | Attenuate with the sides more or less straight and intersecting at an acute angle. |

oblique 1 | base | Asymmetric about its longitudinal axis. | ||

attenuate 1 | = concave-tapered | base | Gradually diminishing in width or diameter toward the proximal end, the sides longitudinally concave. Corresponds with acuminate for apex shape. | |

heart-shaped 1 | = cordate | base | laminar structure | Having two equal, more or less rounded, retrorse lobes, one to either side, overlapping or not, the intervening sinus relatively deep. |

decurrent | base | laminar structure | Having the lamina prolonged and adherent to the supporting axis beneath the point of vascular insertion, the prolonged portion termed a sterigma. | |

wedge-shaped 1 | = cuneate, obtriangular | base | laminar structure | Attenuate with the sides more or less straight and intersecting at an acute angle. |

radiant 2 | = radial, radiate, stellate | arrangement | Disposed about and mutually divergent from a common geometric center in two or three dimensions, thus collectively actinomorphic. | |

rosetted | = rosulate | arrangement | leaves | Forming a rosette; strongly congested and disposed in radial symmetry about the main stem at or very near its base, seeming to arise at the same level and often overlapping laterally; esp. in perennial herbs. |

paired | = conjugate, geminate | arrangement | Inserted by pairs, the members of each fused or not. | |

contiguous | arrangement | Touching one another. | ||

helical 1 | = acyclic, spiral | arrangement | Disposed helically about and along the axis, each on a different radius than the one(s) vertically adjacent. | |

accumbent | = pleurorhizal | arrangement | cotyledons | Having the two cotyledons facing and parallel (adaxial surfaces contiguous) and recurved together, one lateral edge of each abutting the hypocotyl and radicle. |

seriate | = cyclic, verticillate, whorled | arrangement | Disposed along the axis in groups of three or more, the members of each group (cycle, series, verticil, whorl) inserted around the axis at the same level. | |

radiate 2 | = radial, radiant, stellate | arrangement | Disposed about and mutually divergent from a common geometric center in two or three dimensions, thus collectively actinomorphic. | |

pleurorhizal | = accumbent | arrangement | cotyledons | Having the two cotyledons facing and parallel (adaxial surfaces contiguous) and recurved together, one lateral edge of each abutting the hypocotyl and radicle. |

ladder-like | = scalariform | arrangement | Disposed in vertical sequence with long axes horizontal and parallel. | |

…seriate 2 | = …cyclic, …verticillate, …whorled | arrangement | Disposed in the number of series (cycles, verticils, whorls) indicated by the prefix; as in biseriate, 3-seriate. | |

valvate 2 | arrangement | planate structures | Not overlapping, adjacent members laterally contiguous at their margins. | |

whorled | = cyclic, seriate, verticillate | arrangement | Disposed along the axis in groups of three or more, the members of each group (cycle, series, verticil, whorl) inserted around the axis at the same level. | |

elliptic(al) 1 | arrangement | bundle scars | Forming an ellipse |