” Nothing is a better lesson in the knowledge of plants than to sit down in front of them, and handle them and look them over just as carefully as possible; and in no way can such study be more pleasantly or conveniently carried on than by taking a light seat to the rock-wall and giving plenty of time to each kind of little plant, examining it closely and
asking oneself, and it, why this and why that. Especially if the first glance shows two tufts, one with a better appearance than the other; not to stir from the place until one has found out why and how it is done, and all about it. Of course a friend who has already gone through it all can help on the lesson more quickly, but I doubt whether it is not best to do it all for oneself.”
Take a really good look. Has the case ever been more clearly put?