calyx composed of scales or bristles or featherlike hairs in plants of the Compositae such as thistles and dandelions
例句与用法
1.
Late in the alexandrian period , pappus ' additions to geometry came as a sort of anticlimax 在亚历山大里亚晚期出现的pappus对几何学的工作是高潮后的一种低潮。
2.
Delavayanae stern , such as a few pappus on the sutural line of carpel , the larger face of accepting pollen and the lowlier different style 以为把紫牡丹、黄牡丹和狭叶牡丹等三个分类群合为一个种的观点是更为合理的。
3.
Pappus theorem : if the vertices of a hexagon lie alternately on two lines , then the three intersections of the pairs of opposite sides are collinear 帕卜定理：在两条直线上各取三点，并作适当的连线，则三对直线的交点会在同一直线上。
4.
Tacho y , pappus t , lauffenburger m , et al . cgrp stimulates somatostat in release from isolated perfused rat stomach j . endocrinology , 1986 , 118 : 2144 雷银雪，李兆申，湛先保，等.降钙素基因相关肽在大鼠应激性溃疡发生中的作用j .第二军医大学学报， 1998 , 19 ( 5 ) : 464 - 466
5.
On basis of the fact that some organs in the highflower usually appear pappus - a carpellary marked trait , or carpellary morphological trace or anatomical character in the process of transforming development , deem that the highflower origins from the heteromorphic development of carpellary primordium . furthermore , the course and mode of heteromorphic development of different organs in the highflower have been described , and according to the organ composition in highflower , the prolification flower is divided into green prolification , colorful prolification , golden prolification and three - strata prolification 其上方花转化初期的花萼片、花瓣和雄蕊中总表现有心皮的标记性性状? ?被毛、带有心皮的形态和解剖结构痕迹，上方花花萼片的解剖结构中存在有类子房结构，花萼片、花瓣和雄蕊与心皮形成复合结构等，提出其上方花的各类器官都是由心皮原基异形化转化发育而形成的观点。
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