<p>今天云顶好像在准备补种一些树,其中多数是“鹅掌楸”。鹅掌楸,又叫马褂木,是一个不错的树种……</p><p><img src="attachments/dvbbs/2006-10/2006102813113360448.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2006-10/2006102813113360448.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br/><img src="attachments/dvbbs/2006-10/2006102813113324948.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2006-10/2006102813113324948.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br/><img src="attachments/dvbbs/2006-10/2006102813113389516.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2006-10/2006102813113389516.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br/><img src="attachments/dvbbs/2006-10/2006102813113391434.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2006-10/2006102813113391434.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br/><img src="attachments/dvbbs/2006-10/2006102813113346158.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2006-10/2006102813113346158.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br/></p><p style="TEXT-JUSTIFY: inter-ideograph; TEXT-INDENT: 24pt; LINE-HEIGHT: 16.5pt; TEXT-ALIGN: justify;"><span style="FONT-SIZE: 10.5pt;"><font face="宋体">鹅掌楸又叫马褂木<span lang="EN-US">,</span>这是因为鹅掌楸的叶片就像挂在树梢上的小马褂<span lang="EN-US">──</span>叶片的顶部平截<span lang="EN-US">,</span>犹如马褂的下摆;叶片的两侧平滑或略微弯曲<span lang="EN-US">,</span>好像马褂的两腰;叶片的两侧端向外突出<span lang="EN-US">,</span>仿佛是马褂伸出的两只袖子。</font></span></p><p style="TEXT-JUSTIFY: inter-ideograph; TEXT-INDENT: 24pt; LINE-HEIGHT: 16.5pt; TEXT-ALIGN: justify;"><span style="FONT-SIZE: 10.5pt;"><font face="宋体">鹅掌楸属于木兰科<span lang="EN-US">,</span>是一种高可达<chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="True" sourcevalue="40" unitname="m"><span lang="EN-US">40 m</span></chmetcnv>的落叶大乔木。鹅掌楸的花有<span lang="EN-US">9</span>枚花被片<span lang="EN-US">,</span>分<span lang="EN-US">3</span>轮排列(外轮的<span lang="EN-US">3</span>片呈绿色<span lang="EN-US">,</span>似萼片<span lang="EN-US">,</span>向外展开;内两轮的<span lang="EN-US">6</span>片黄绿色<span lang="EN-US">,</span>立而合抱)。花被片以内是多数雄蕊<span lang="EN-US">,</span>长长的花药向上直立生长。位于花中央部位的是离心皮雌蕊群。鹅掌楸的花有些像郁金香<span lang="EN-US">,</span>因此<span lang="EN-US">,</span>它的英文名称是<span lang="EN-US">“Chinese Tulip Tree”,</span>译成中文就是<span lang="EN-US">“</span>中国的郁金香树<span lang="EN-US">”</span>。</font></span></p><p style="TEXT-JUSTIFY: inter-ideograph; TEXT-INDENT: 24pt; LINE-HEIGHT: 16.5pt; TEXT-ALIGN: justify;"><span style="FONT-SIZE: 10.5pt;"><font face="宋体">鹅掌楸是一种具有一亿年以上历史的古老的被子植物。鹅掌楸在中生代侏罗纪晚期生长在北半球纬度较高的北欧、格陵兰和阿拉斯加等地。到了新生代第三纪<span lang="EN-US">,</span>鹅掌楸广泛分布在欧亚大陆和北美洲<span lang="EN-US">,</span>第四纪冰川以后仅在我国的南方和美国的东南部有分布<span lang="EN-US">,</span>成了孑遗植物。因此<span lang="EN-US">,</span>我国的鹅掌楸和北美鹅掌楸都是十分古老的树种<span lang="EN-US">,</span>它们对于研究东亚植物区系和北美植物区系的关系<span lang="EN-US">,</span>对于探讨北半球地质和气候的变迁<span lang="EN-US">,</span>具有十分重要的意义。</font></span></p><p style="TEXT-JUSTIFY: inter-ideograph; TEXT-INDENT: 24pt; LINE-HEIGHT: 16.5pt; TEXT-ALIGN: justify;"><span style="FONT-SIZE: 10.5pt;"><font face="宋体">人工栽种的鹅掌楸是一种优良的园林绿化树种。鹅掌楸的木材纹理直、结构细、质地轻、韧性强<span lang="EN-US">,</span>可用于建筑和家具制作等。<span lang="EN-US"><p></p></span></font></span></p> |