Page:An introduction to physiological and systematical botany (1st edition).djvu/193

 Rh are doubly serrated, duplicato-serrata, having a series of smaller serratures intermixed with the larger, as Mespilus grandiflora, t. 18, and Campanula Trachelium, Eng. Bot. t. 12.

Serrulatum, minutely serrated, is used when the teeth are very fine, as in Polygonum amphibium, t. 436, and ''Empleurum serrulatum, Exot. Bot.'' 63.

Crenatum, notched, or crenate, when the teeth are rounded, and not directed towards either end of the leaf, as in Ground-Ivy, Glechoma hederacea, t. 853, Chrysoplenium, t. 54 and 490, and Sibthorpia europæ, t. 649. In Saxifraga Geum, t. 1561, the leaves are sharply crenate. In the two British species of Salvia, t. 153 and 154, the radical leaves are doubly crenate.

Erosum, jagged, irregularly cut or notched, especially when otherwise divided besides, as in Senecio squalidus, t. 600.

Repandum, wavy, bordered with numerous minute angles, and small segments of circles alternately, as Menyanthes nymphæoides, t. 217, and Inula dysenterica, t. 1115.