Plants in which the seeds are produced on microsporophylls and are not enclosed by fruits are classified as:

The microsporophylls of $Pinus$ have:

Each plant or group of plants has some phylogenetic significance in relation to evolution. $Cycas$,one of the few living members of gymnosperms,is called the 'relic of the past'. Can you establish a phylogenetic relationship of $Cycas$ with any other group of plants that justifies the above statement?

Where are plant species taller than $Eucalyptus$ found?

In $Gymnosperms$,fruits are not formed because:

$Cycas$ has two cotyledons but is not included under angiosperms because it has: