Fig. 254. Flower of a Campanula or Harebell, with a campanulate or bell-shaped corolla; 255, of a Phlox, with salver-shaped corolla; 256, of Dead Nettle (Lamium), with labiate ringent (or gaping) corolla; 257, of Snapdragon, with labiate personate corolla; 258, of Toad-Flax, with a similar corolla spurred at the base.
Funnel-shaped, or Funnelform; gradually spreading at the summit of a tube which is narrow below, in the shape of a funnel or tunnel, as in the corolla of the common Morning Glory (Fig. [247]) and of the Stramonium (Fig. [246]).
Tubular; when prolonged into a tube, with little or no spreading at the border, as in the corolla of the Trumpet Honeysuckle, the calyx of Stramonium (Fig. [246]), etc.
261. Although sepals and petals are usually all blade or lamina ([123]), like a sessile leaf, yet they may have a contracted and stalk-like base, answering to petiole. This is called its Claw, in Latin Unguis. Unguiculate petals are universal and strongly marked in the Pink tribe, as in Soapwort (Fig. [248]).
Fig. 259. Unguiculate (clawed) petal of a Silene; with a two-parted crown.