238 APPENDAGES OF THE COROLLA. 
(fig. 495). Only one spur may be present, as in the Heartsease, 
or each of the petals may be spurred, as in the Columbine (fig. 
497). The Yellow Toadflax, which usually only produces one 
Fie. 494, Fia. 495. 
Fig. 494. Flower of a species 
of Valerian (Valeriana). c. 
Calyx, adherent to the 
ovary. 7, Limb of the calyx 
rolled inwards. The corolla 
has a projection towards its 
base, and is hence said to 
be gibbous. —— Fig. 495, 
Flower of the Red Valerian 
(Centranthus). The corolla 
is irregularly salver-shaped 
and spurred at its base. 
spur, in rare instances is found with five. Such a variety was 
termed by Linneeus Peloria, a name which is now frequently 
applied by botanists to all flowers which thus pass from irre- 
gularity to regularity. In the Monkshood (fig. 496), the two 
Fia. 496. Fic, 497. 
LZ>[PFYYAL\ Of 
Fig. 496. A portion of the flower of the Monkshood (Aconitum), with nu- 
merous stamens below, and two stalked somewhat horn-shaped petals 
above. ——VSig. 497. Flower of the Columbine (Aguilegia vulgaris) with 
each of its petals spurred, 
petals which are situated under the helmet-formed sepals already 
noticed (fig. 457) are each shaped somewhat like an irregularly 
curved horn placed on a long channelled stalk, 
