In some cases (Allium, Convolvulaceae, &c.) rows of cells with latex-like contents occur, but the walls separating the individual cells do not break down.
The meadows are clothed with a rich vegetation - numberless Paeoniae, Scabiosae, Convolvulaceae, Campanulae, Eremurus, Umbelliferae, Gallium, Rosaceae, Altheae, Glycyrrhizae, Scorodosma foetida and Gramineae.
In the order Scrophulariaceae one of the two carpels is posterior and the other anterior, whilst in Convolvulaceae the carpels are arranged laterally.
This arrangement is characteristic of the flower-buds of Malvaceae and Apocynaceae, and it is also seen in Convolvulaceae and Caryophyllaceae.
In Convolvulaceae, while the corolla is twisted, and has its parts arranged in a circle, the calyx is imbricate, and exhibits a spiral arrangement.