12 COROLLA. 



Funnel-shaped, as in Thorn-apple, (Datura) 

 %. 2. 



Salver-shaped, as in Primrose, (Primula) fig. 3, 

 in which latter the segments are equal, and it 

 is therefore termed a regular monopetallous 

 corolla. 



Rotate, wheel-shaped, as in Speedwell (Veronica) 

 fig. 4, in which the segments are unequal, and 

 it is termed an irregular monopetallous corolla. 

 Tubular, as in Honeysuckle, (Lonicera) fig. 

 5, and the central florets of Ox-eye (Chry- 

 santhemum) fig. 6. 



Ligulate, strap-shaped, as in Dandelion, (Leon- 

 todon) fig. 7. 



Ringent, gaping, as in Dead-nettle, (Lamium) 

 fig. 1, pi. 9. 



Personate, closed at the mouth, as in Snap dra- 

 gon, (Antirrhinum) fig. 2. 



A Polypetallous corolla is termed regular when 

 consisting of petals equal in size and similar in 

 shape : 



Irregular, when otherwise, as in the violet, 

 (Viola) fig. 3. 



It is termed cruciform when composed of four 

 equal petals placed crosswise, as in the Wall- 

 flower, fig. 3. pi. 7. 



Papilionaceous, when the petals are so formed 

 and disposed as to resemble a Butterfly, fig. 4, 

 pi. 9. 



