Question

what is corolloid and where it is found

Answer 1

I guess it should be Coralloid, these are a kind of branched - beady like appearance roots present in Cycads, the roots have cyanobacteria zones inhabited by cyanobacteria that fixes nitrogen for these plants and also produce important amio acids such as asparagine and citrulline for them to intake.

Answer 2

cycadophyte, any member of diverse collection of mostly extinct primitive gymnospermous plants. they probably had their origins among the progymnosperms of the "Devonion period "(416 to 359 million year ago ).possibly amongst a primitive.long extinct group of non seed bearing plants .in which disposition of fertile structures and patterns of branching bears some resemblance to those of seed fern