与 «THRUM-EYED»相关的英语书籍
在以下的参考文献中发现
thrum-eyed的用法。与
thrum-eyed相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
1
Invention and Evolution: Design in Nature and Engineering
In the primrose, the nectar is at the bottom of the tubular central part of the flower,
the corolla; the plants are of two kinds, pin-eyed, in which the stigma is near the
entrance to the corolla and the anthers well down inside it, and thrum-eyed, ...
2
Longman A-Level Biology: Growth, Development and Reproduction
(b) nectar secreted around the base of ovary filament attached at top of corolla
tube receptacle Figure 3.9 Longitudinal section of (a) pin-eyed flower and (b)
thrum-eyed flower of primrose. • In thrum-eyed flowers, the anthers are at the
mouth of ...
3
Nick Baker's British Wildlife: A Month by Month Guide
Sr MAZCH Pin- and Thrum-eyed Primroses Pin-eyed Primrose Look for two types
of Primrose flower - on separate plants. This ensures cross-pollination. Thrum-
eued Primrose The 'Pin-eyed' has several styles, and the anthers on the stamens
...
Nick Baker, Nick Baker, Wildlife Trusts (Great Britain),
2006
4
The Embryology Of Angiosperms, 5E
The stigma in the thrum-eyed flowers is at the level of anthers in the pin- eyed
flowers and vice-versa. As a rule, pollen from thrum-eyed flowers can bring about
effective pollination only in pin-eyed flowers and, similarly, pollen from pin-eyed ...
S P Bhatnagar S S Bhojwani,
2009
bottom of the tube, pollen from the pollen boxes half-way down the tube gets
stuck to the insect's head. When next the insect goes to a thrum-eyed flower, the
pollen on its head is rubbed off on to the pistil of this flower. At the same time
pollen ...
Similarly, the pollen from a pin-eyed flower can be transferred to the stigma,
situated half-way down the tube, of a thrum-eyed flower. This, however, does not
exhaust the methods of pollination, for pollen from a thrum- eyed flower can
easily ...
7
A new and complete dictionary of arts and sciences: ...
... of each floret should be large, regular, and bright; and the antlierse, by the
florists called the thrum, should rise high enough to cover the mouth of the tube or
hollow part in the middle of the florets, and render them what they call thrum-eyed
; ...
In a long-styled 0r “pin-eyed” flower the stigma is at the top of the corolla tube and
the stamens half-way down, while in a. shortstyled or “thrum-eyed” flower the
positions of the stigma and stamens are reversed. When a Bee visits a Primrose ...
9
A Dictionary of Arts and Sciences
This pin-eyed polyanthus, however, though rejected by the florists, is the flower in
its most perfect state, and great numbers of them are of as beautiful forms and
colours as the thrum-eyed varieties. 4. Primula anricnla. has a thick fibrous root, ...
10
100 Families of Flowering Plants
'Pin-eyed' flowers have a long style reaching the mouth of the corolla- tube, with
the stamens attached about halfway up the tube, while in 'thrum-eyed' flowers the
positions are reversed. This variation in the arrangement of these organs is ...
Michael Hickey, Clive King,
1988