chiloglottis, simpliciglottis, myrmechila bird orchids and ant orchids外语英文电子书

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1、Chiloglottis, Simpliciglottis, Myrmechilabird orchidsandantorchidsRB,XMyrmeglottis pescottiana,VictoriaGenus ChiloglottisR.Br.,‘Bird Orchids’.Etymology:fromthe Greek ‘cheilos’a lip and ‘glottis’the entranceto the windpipe, asinthe humanwindpipe withitsepigl

2、ottisresembling the basalcallionthe orchid labellum.Distributionandhabitat:Chiloglottisisa supergenusofaboutthirtyspeciesin threesegregate genera,occurring mostlyin Australia witha few extending toNewZealand.The genusisrestricted tohighrainfallareasin fores

3、tand the SouthAustralianplantsare likelyto be bestregardedasvisitors.The genusiseasytoidentifyfromitspaired, ovate,basalleaves.Allspeciesreproducevegetativelyaswellasfromseed thusitisthata single seed blown from the Easternstateswhichgerminateshere mayevent

4、uallyformquite a largecolony without the need forpollinationofitsflowers.Pollination:The dullgreenandbrownflowersemit volatile aromatic substancesorkairomoneswhichare good copiesofthe sexpheromonesofthynnid waspsand eachChiloglottisspecieshasadifferentand h

5、ighlyspecific pollinator.These pollinatorsgrasp the often insectiform callionthe orchid labellumand astheyattempttocopulate withthese the orchid polliniaare transferred, either fromthe insecttothe stigma orfromthe anther tothe insect.Itisperhapsnotsurprisin

6、g thatthe pollinating waspsdonotappear to occurinSouthAustralia and thatthe mostcommonspeciesinSAisselfpollinated anyway.After pollinationtheflower pedicelmayelongate sothatthe seed capsule iseventuallywellabove soillevel.The genusiseasytocultivate providin

7、g theplantsare protected fromdesiccation and heatinthe warmer monthsand fromexcessive raininthe winter.Not closelyrelated toanyother SouthAustraliangenus.Taxonomy:Recentlythe genusChiloglottishasbeendivided byseveralauthorsintothreesegregate genera..ieChilo

8、glottisin the strictsense,SimpliglottisSzlach andMyrmechilaJones&Clem.The speciesfallintotwo groupsie the autumnflowered speciesortrueChiloglottisand the spring/summer floweredSimpliglottisandMyrmechil