Another beautiful contrast to this arrangement is afforded by those plants
Another beautiful contrast to this arrangement is afforded by those plants which, though natives of warmer climates,continue to flower in our gardens in the depth of winter. An example of this class is furnished by the common yellow jasmine, Jasminium nudiflorwn, from China, which does not discharge its pollen till considerably after the opening of the flower, and which never fructifies in this country. But a more striking instance is found in the "allspice tree," the Chimonanthus fragrans, or CalycantMis pracox of gardeners, a native of Japan, which, flowering soon after Christmas, has yet the most perfect contrivance to prevent self-fertilisation (Fig. C). In a manner very similar to that which has been described in the case of Parnassia palustris,* the stamens, at first nearly horizontal, afterwards lengthen out, and rising up perpendicularly, completely cover up the pistil, and then discharge their pollen outwardly, so that none can possibly fall on the stigma. As a necessary consequence, fruit is never produced in this country ; but may we not conjecture that in its native climate the Chimnonanthus is abundantly cross-fertilised by the agency of insects,
Subscribe to:
Post Comments (Atom)
A Travel Guide to the UK
A Travel Guide to the UK The UK offers all-in-one travel experiences that delve deep into thousands of years of history. It's a country ...
-
Hello April copy ₊̊‧*˚̩͙̩͙*‧₊̊ ส๐ธษ₊̊‧*˚̩͙̩͙*‧₊̊‧ copy ...
-
I hope l occupy your mind copy .๏ฎฉูจู๏ฎฉ๏ฎฉูจู๐ ๐ต๐ธ๐ฟ๐ฎ ๐๐ธ๐พ๏ฎฉูจู๏ฎฉ๏ฎฉูจู copy ...
No comments:
Post a Comment