Page:An introduction to physiological and systematical botany (1st edition).djvu/181

 also Witsenia corymbosa, ''Exot. Bot. t. 68, and Dilatris corymbosa, t.'' 16.

Decurrentia, decurrent, running down the stem or branch in a leafy border or wing, as ''Onopordum Acanthium, Engl. Bot. t. 977, Carduus tenuiflorus, t. 412, and many other Thistles, also the Great Mullein, Verbascum Thapsus, t. 549, and Comfrey, Symphytum officinale, t.'' 817.

Florifera, flower-bearing, when flowers grow out of the disk or margin of any leaf, as in Ruscus aculeatus, t. 560, Xylophylla latifolia, and X. falcata, ''Andr. Repos. t.'' 331. This is equivalent to a frond in the class Cryptogamia; see p. 133.

3. With regard to form, Leaves are either simplicia, simple, like those of Grasses, Orchises, Lilies, and many other plants, as ''Ballota nigra, Engl. Bot. t. 46, and Berberis vulgaris, t. 49; or composita, compound, as in most Umbelliferous plants, Parsley, Hemlock, &c.; also Roses, Engl. Bot. t.'' 990—992.