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Theoretical question......plant reproductive structures

Mohammad El-Mahdi el-mahdi at ix.netcom.com
Sun Apr 28 17:57:21 EST 1996


In <4ls4rg$98s at dfw-ixnews6.ix.netcom.com>
el-mahdi at ix.netcom.com(El-Mahdi ) writes: 
>
>
>
>Hi.....
>
>
>A quick question...
>
>Would it have been "possible" on a theoretical basis, for an
>indehiscent megasporangium to evolve before integument-penetrating
>pollen tubes evolved? If yes Why? If not Why not? And what problem
>would be involved. 
>
>Thanx in advance......




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