82 



2, ANTIRRHINUM PURPUREUM, 



PURPLE TOADFLAX. 



This genus includes various plants of the herbaceous flowery 

 tribe, comuionly known by the titles of Snap-Dragon, Cnlf's-Snout, 

 and Toad- Flax, or Frog's-Moutli. 



It belongs to the class and order Did^/iutmia Angiospcrm/u, and 

 ranks in the natural order of Fcrso/iafa-. 



The characters are: that the calyx is a five-parted permanent 

 perianthium : the divisions oblong, tlie two lowermost gaping: the 

 corolla is monopetalous and ringent: the tube oblong, swelling, and 

 opening above with a mouth having two hps, the upper one twc- 

 J3arted and reflex on each side, the under one trifid and obtuse: the 

 palate convex, usually closed by a prominency between the lips, 

 produced from the under lip, the throat being concave beneath, hav- 

 ing a prominent nectarium at the base of the corolla, produced 

 downwards and prominent: the stamina consist of two shoit and two 

 long filaments, enchased under the upper lip; the antherai converg- 

 ing: the pistillum a roundish germ, style simple, of the length and 

 in (he situation of the stamens: the sligma obtuse: the pericarpium 

 a roundish capsule, obtuse, two-celled, of dilferent form and aper- 

 tuie in the different species: the seeds numerous: the receptacles 

 uniform, solitary, and aflixed lo tlie partition. ,- - •' 



The species of most impoitance for cultivation are: 1. yi. linaria. 

 Common Yellow Toad-J'lax ; 2. A. cymbalaria, Jvy-leaved Toad- 

 Flax; 3. A. tr/phyllum,'T\nve-]cavLd Toad-L'lax; 4. A. piirpurcum. 

 Purple Toad-Flax; 5. A. monspessiihmvm, Morilpellier Toad-Flax ; 

 6. ^. s/j«?Yey«z, Branching Toad-Fhix ; 7. A. trisic. Dark-flowered 

 Toad-Flax; 8. A. peUsser'utnum, Violet-coloured Toad-Flax; 9. A. 

 inulticaulc, Many-stalked Toad-Flax; 10. A. ulpiiutm, Alpine load- 

 Flax; 11. A. dalmaticum, Dalmatian Shrubby Toad-Flax; 12. yl. ge- 



