In $Pinus/Cycas$ (Gymnosperms),the endosperm is ....

Sago of $Cycas$ is given to patients with stomach disorders because it is

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?

The secondary wood of $Pinus$ is characterised by:

How many families were included in the group Gymnospermae by Bentham and Hooker?

The lateral conduction in gymnospermic leaf is by