參考
http://forum.doctorvoice.org/viewtopic. ... AD#p346699
p47頁1409
Blind faith 大大
1410
桶蘭屬（Cory-anthes)
物種起源
第六章
http://rain.prohosting.com/lastwit/big5 ... er/008.htm
摘錄
Dr‧Cruger最近描述過的桶蘭屬（Cory-anthes）那樣異常適應的例子。這種蘭科
植物的唇瓣即其下唇有一部分向內凹陷變成一個大水桶，在它上面有兩個角狀體，分泌
近乎純粹的水滴，不斷地降落在桶內；當這個水桶半滿時，水就從一邊的出口溢出。唇
瓣的基部適在水桶為上方，它也凹陷成一種腔室，兩側有出入口；在這腔室內有奇異的肉質稜。即使最聰明的人，如果他不曾親自看見有什麼情形在那裡發生，永遠也不會想像到這些部分有什麼用處。但克魯格博士看見成群的大形土蜂去訪問這種蘭科植物的巨
大的花，但它們不是為了吸食花蜜，而是為了咬吃水桶上面腔室內的肉質稜；當它們這
樣做的時候，常常互相沖撞，以致跌進水桶裡，它們的翅膀因此被水浸濕，不能飛起來，
便被迫從那個出水口或溢水所形成的通路爬出去。克魯格博士看見土蜂的“連接的隊伍”
經過不自願的洗澡後這樣爬出去。那通路是狹隘的，上面蓋著雌雄合蕊的柱狀體，因此
蜂用力爬出去時，首先便把它的背擦著膠粘的柱頭，隨後又擦著花粉塊的粘腺。這樣，
當土蜂爬過新近張開的花的那條通路時，便把花粉塊粘在它的背上，於是把它帶走了。
克魯格博士寄給我一朵浸在酒精裡的花和一只蜂，蜂是在沒有完全爬出去的時候弄死的，
花粉塊還粘在它的背上。這樣帶著花粉的蜂飛到另一朵花去，或者第二次再到同一朵花
來，並且被同伴擠落在水桶裡，然後從那條路爬出去，這時，花粉塊必然首先與膠粘的
柱頭相接觸，並且粘在這上面，於是那花便受精了。現在我們已經看到了花的各部分的
充分用處，分泌水的角狀體的用處，半滿水桶的用處——它在於防止蜂飛去，強迫它們
從出口爬出去，並且使它們擦著生在適當位置上的膠粘的花粉塊和膠粘的柱頭。....
http://en.wikipedia.org/wiki/Coryanthes
摘錄
Coryanthes, commonly known as Bucket Orchids, is a genus of tropical epiphytic orchids. This genus is abbreviated as Crths in horticultural trade.
Bucket orchids are an excellent example of coevolution and mutualism, as the orchids have evolved along
with orchid bees (the tribe Euglossini of the family Apidae) and both depend on each other for reproduction. One to three flowers are borne on a pendant stem that comes from the base of the pseudobulbs. The flower secretes a fluid (see Coryanthes alborosea picture) into the flower lip, which is shaped like a bucket. The male orchid bees (not the females) are attracted to the flower by a strong scent from aromatic oils, which they store in specialized spongy pouches inside their swollen hind legs, as they appear to use the scent in their courtship dances in order to attract females. The bees, trying to get the waxy substance containing the scent, sometimes fall to the fluid-filled bucket. As they are trying to escape, they find that there are some small knobs on which they can climb on, while the rest of the lip is lined with smooth, downward-pointing hairs, upon which their claws cannot find a grip. The knobs lead to a spout (see the Coryanthes leucocorys picture), but as the bee is trying to escape, the spout constricts. At that same moment, the small packets containing the pollen of the orchid get pressed against the thorax of the bee. However, the glue on the pollen packets does not set immediately, so the orchid keeps the bee trapped until the glue has set. Once the glue has set, the bee is let free and he can now dry his wings and fly off. His ordeal may have taken as long as forty-five minutes. Hopefully, the bee will go to another flower, where, if the flower is to be successful at reproducing, the bee falls once again into the bucket of the same species. This time the pollen packets get stuck to the stigma as the bee is escaping, and after a while the orchid will produce a seed pod.
The bee, having stored the aromatic oils in his back legs, can then fly off to mate with a female bee.
圖
http://commons.wikimedia.org/wiki/Category:Coryanthes
Type species
Coryanthes maculata
http://commons.wikimedia.org/wiki/Coryanthes_maculata
http://commons.wikimedia.org/wiki/File: ... chi_01.jpg
http://commons.wikimedia.org/wiki/File: ... chi_02.jpg
Coryanthes alborosea
http://commons.wikimedia.org/wiki/File: ... chi_04.jpg
Coryanthes gerlachiana
http://commons.wikimedia.org/wiki/Corya ... erlachiana
http://commons.wikimedia.org/wiki/File: ... chi_01.jpg
http://commons.wikimedia.org/wiki/File: ... chi_02.jpg
Coryanthes_hunteriana
http://commons.wikimedia.org/wiki/Coryanthes_hunteriana
http://commons.wikimedia.org/wiki/File: ... chi_01.jpg
Coryanthes leucocorys
http://commons.wikimedia.org/wiki/File: ... chi_02.jpg
Coryanthes macrantha
http://commons.wikimedia.org/wiki/File: ... chi_03.jpg
Coryanthes macrocorys
http://commons.wikimedia.org/wiki/File: ... chi_01.jpg
Coryanthes mastersiana
http://commons.wikimedia.org/wiki/Corya ... astersiana
http://commons.wikimedia.org/wiki/File: ... chi_02.jpg
http://commons.wikimedia.org/wiki/File: ... chi_01.jpg
Coryanthes picturata
http://commons.wikimedia.org/wiki/Coryanthes_picturata
http://commons.wikimedia.org/wiki/File: ... chi_01.jpg
Coryanthes speciosa
http://commons.wikimedia.org/wiki/File: ... chi_02.jpg
Coryanthes trifoliata
http://commons.wikimedia.org/wiki/Coryanthes_trifoliata
http://commons.wikimedia.org/wiki/File: ... chi_01.jpg
Coryanthes_verrucolineata
http://commons.wikimedia.org/wiki/Corya ... ucolineata
http://commons.wikimedia.org/wiki/File: ... chi_03.jpg
Coryanthes_verrucolineata
http://commons.wikimedia.org/wiki/File: ... chi_04.jpg
ps:
據別人描述桶蘭有濃香
不過在蘭展和花市二度遇見,好像沒聞到什麼香味
