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ÁíÒ»·½Ã棬ÔÚ²»Í¬¹ú¼Ò/µØÇø·¢ÏÖ?í×ÔEAµÄÎïÖֵĻ¯Ê¯±ê±¾£¬?KŒ¦¹ûʵ²¿·ÖßMÐÐÁ˵÷²é¡£E. montanaºÍE. eocenicaÎï·NµÄË®¹ûÒѱ»´_ÕJºÍӛ䛡£ÕâЩˮ¹ûµÄ½ø»¯¿ÉÄÜÉæ¼°µ½Ôö¼Ó³á¹ûŒ¦·Q´óСµÄ³ß¶È, Òà°l¬FÖÖ×ÓµÄÊýÁ¿ÓÉ2‚€ÖÁ1‚€Ò²ÐížéÁËßm‘ªïLÁ¦‚÷²¥¡£µ«³á¹ûÊÇÉÙì¶ÆäËüÏàêPµÄÎï·N¡£ On the other hand, in different countries/localities findings of fossil specimen from EA species, with the part of fruits have been investigated. The fruits of E. montana and E. eocenica species are records and identified. These fruit evolution may have involved increases in samara size and symmetry, and also found the seeds number from two to one, that perhaps as adaptations for wind dispersal. But the samaras are smaller than those related species. |
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ÕæÇ¿±ØÊ¤: ½ð±Ò+1, good 2014-07-09 08:00:01
YauYau: ½ð±Ò+5, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, Thanks! 2014-07-09 13:36:22
ÕæÇ¿±ØÊ¤: ½ð±Ò+1, good 2014-07-09 08:00:01
YauYau: ½ð±Ò+5, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, Thanks! 2014-07-09 13:36:22
| On the other hand, fossil specimens of EA were found in different countries/localities and the part of their fruits have been investigated. The fruits of E. montana and E. eocenica were recorded and identified ,whose evolution may have involved samara size and symmetry increase. The seed number from two to one , perhaps as an adaptation for wind dispersal ,was also found . However, their samaras are smaller than those of related species. |

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