316 
Didynamia. 
Order II. Angiospermia. 
Rhinanxhus Crista-Galli, Yellow-rattle, or Horse- 
rattle. Gen . char. — Cal. inflated, four toothed; shield 
of the corolla compressed, caps, two- celled, obtuse, 
compressed ; seeds imbricated. Spec. char. —Upper lip 
of the corolla arched ; cal. smooth ; leaves lanceolate, 
serrated. Annual, and very common in meadows and, 
pastures. 
Euphrasia Officinalis, Eye-bright. Cal. cylindri- 
cal, four toothed, equal ; upper lip of corolla two-cleft, 
lower lip three-lobed, with two-cleft segments ; anthers 
furnished with unequal spines. Spec, char . — Leaves 
ovate, minutely toothed. Very common in pastures 
and heathy grounds. 
Antirrhinum. Gen. char. — Cal. five parted, base 
of the corolla prominent downwards, nectariferous ; 
caps, two celled. 
Ant. Linaria , Common Yellow-toad Flax ; with 
lance shaped, linear, crowded leaves stem erect, spik- 
ed ; cal. smooth, shorter than the nectary. Common 
in hedges and the borders of fields. 
Ant. Majus, Great Snapdragon. Cor. without spur ; 
flowers in spikes ; cal. obtuse, hairy. Perennial, and a 
common plant in the flower garden. 
Digitalis Purpurea, Purple Foxglove. Cal. five- 
parted ; cor. bell-shaped, five*cleft, inflated, caps, ovate, 
two-celled, many seeded. Spec. char. — Segments of 
the calyx ovate, acute j corolla obtuse ; upper-lip en- 
