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pappus    
n. 冠毛

冠毛

pappus
n 1: calyx composed of scales or bristles or featherlike hairs
in plants of the Compositae such as thistles and dandelions


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  • Pappus of Alexandria - Wikipedia
    Pappus of Alexandria ( ˈpæpəs ⓘ; Ancient Greek: Πάππος ὁ Ἀλεξανδρεύς; c 290 – c 350 AD) was a Greek mathematician of late antiquity known for his Synagoge (Ancient Greek: Συναγωγή) or Collection (c 340), [1] and for Pappus's hexagon theorem in projective geometry
  • Pappus - Master Gardeners of Northern Virginia
    pappus: an appendage of the cypsela (fruit) of the Asteraceae consisting of one to many bristles, awns, scales, setae, or coronas that assists in seed dispersal
  • Pappus | plant anatomy | Britannica
    The pappus is a structure found in certain seed plants that crowns the ovary or fruit It consists of a tuft of appendages that aids in the dispersal of the fruit
  • What does pappus mean? - Definitions. net
    The pappus is the modified calyx, the part of an individual disk, ray or ligule floret surrounding the base of the corolla, in flower heads of the plant family Asteraceae
  • Pappus of Alexandria | Greek Mathematician Ancient Geometer - Britannica
    Pappus of Alexandria was the most important mathematical author writing in Greek during the later Roman Empire, known for his Synagoge (“Collection”), a voluminous account of the most important work done in ancient Greek mathematics
  • Pappus – Orbis Environmental Consulting
    A characteristic of this family is that the calyx (the floral part that surrounds the petals) is modified into a structure called a pappus Pappi come in all shapes, textures, colors, and sizes Some taxa in the family Asteraceae, such as yellow coneflower (Ratibida pinnata), lack a pappus entirely
  • Pappus – Purdue Arboretum Explorer
    Pappus A structure consisting of feather-like bristles or hairs attached to seeds (most often of the Aster family – Asteracea or Compositae) to help them disperse by means of wind
  • Pappus - definition of pappus by The Free Dictionary
    A modified calyx, composed of scales, bristles, or featherlike hairs, in plants of the composite family, such as the dandelion and the thistle [Latin, old man, down on certain seeds, from Greek pappos; see papa in Indo-European roots ] American Heritage® Dictionary of the English Language, Fifth Edition





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