There were transitional forms between mineral and plant kingdoms which could not be assigned to one or the other development stage. That is why the division in stages is only a helpfulmeans in order to elaborate the main points.
The existence as a plant was still determined by being integrated into the whole. This is obvious when one sees how many species are rooted in the soil.
This stage of development was the successful attempt to wrest life from the earth. A living that was able to reproduce itself:
"... feelings, as if you have ( as moss) to awaken a new level, to wrest it from the earth, quasi. The moss can break the first green forms of life even from the stone. - Exactly, this is actually the opposite of the stone, the soft, the everywhere matching. Moss has developed an incredible variety over long periods. "
„Vitality means life-force – wherever there is life, in plant or animal or man, there is life-force – without the vital there can be no life in matter and no living action. The vital is a necessary force and nothing can be done or created in the bodily existence, if the vital is not there as an instrument. " 
With germination, sprouting and growth there also emerged seemingly dying, decay and
decomposition as continuous cycle of transformation. A long period of experimentation began, seemingly unintentional but longing for progress.
"[Grass] ... is a bit like a precursor to the tree, in the sense that one feels the air and the sun. There are certain noises, too, when the prairie wind blows through the grasses; he does not press them down individually but the air floods like waves through the grasses. It is even more individual in trees. Every tree has its own language or whispering. Whereas the moss or grass is more tied to the earth and the water.“
In the further descriptions Mr. Reiter mentions a kind of yearning that was stimulated
by needs such as more air, more sun, becoming stronger. Thus there must have already been a consciousness in plant life, even if only a very weak and half-conscious.
If one observes how plants grow up to the light in long-lasting dark weather or in a dark location and sometimes reach twice the height this is a purposeful effort to improve living conditions.
In the tree a climax of plant life was reached. With the elastic resistance of its crown and the roots anchored firmly in the ground it was taller than all the other plants and it oriented his numerous leaves according to its needs. For long periods he defied droughts, storm, rain and climatic changes, perfect adapted to the course of the seasons.
In one of his hypnosis sessions Peter Reiter described us as "uprooted" beings which lacked the serene strength of the trees.
When the sun goes down and everything is quiet, sit down for a moment and communicate with nature: you will feel that from the earth, from beneath the roots of the trees, the desire of an intense love and longing ascends up to the highest branches and twigs - a longing for something that brings light and happiness, a longing for the light that is now gone and that they want to get back. return. There is a longing so pure and intense that your own being, when you can feel the movement in the trees, will also rise in a fervent prayer, a prayer for peace, light and love, which are not manifested here.
One thing, however, got lost in this stage of development: the freedom to move anywhere which the little consciousness still possessed. This freedom also remained a driving force for further evolution:
"There is a longing to make more and more, somehow of the never-satisfied; For example as a plant want to move more. ... If the self has gathered the experiences then one becomes a bit tired of the whole ... (incomprehensible), of the absorbing up and one wants to participate more in the design, more flexibility. „
Once again there was an intermediate area with genera which cannot be clearly attributed either to the plant kingdom or the animal kingdom: "... another intermediate stage between what is no longer quite a plant and not yet an animal. There are different genera like this which are very interesting. There are the carnivorous plants, plants like an open mouth: you throw a fly in and „snap!“, they devour it. It is no longer quite a plant and not yet an animal. There are so many plants of this species." 
 Dr. Peter Reiter in "Der Wiederverkörperungsweg eines Menschen durch die Jahrtausende, Reinkarnationserfahrung in Hypnose", Werner J. Meinhold, AURUM Verlag, Freiburg im Breisgau, 1989 , S. 239
[2[ Sri Aurobindo, Letter on Yoga, Vol.1
 a.a.O. , S. 236
 a.a.O. S. 237
 Auszug aus: Sri Aurobindo, Die Mutter und andere Autoren. „Flüstern der Natur.“ iBooks.