POPULAR FLORA. 



175 



6L riGWORT FAMILY. Order SCEOPIIULAHIACETE. 



Herbs with a 2-lipped or more or less irregular monopetalous corolla, and 4 stamens 



in pairs (2 long and 2 short), or only 2 perfect stamens; 

 rarely all 5 present : style 1 : the ovary 2-celled and 

 making a many-seeded pod (few-seeded in some Speed- 

 wells and Cow-wheat). Flowers often showy. Two lobes 

 always belong to the upper lip, three to the lower. 



434 



434. Corolla of a Pentstemon, 

 laid open, showing" the 4 perfect 

 stamens and the fifth as a sterile 

 naked filument. 



435. Sianiehs (with a piece of 

 the corolla) of another Penlste- 

 mon, with the sterile filament 

 beard e'i. 



436. Piece of Purple Gerardia. 



437. Corolhi luid open, showing 

 the 4 stamens in pairs. 



438. Style ami calyx of the same, 



439. Part of a pod, 



440. Flower of Toadflax. 



441. Plant of Hwdge-Hyssop. 



442. Flower laid open ; one pair 

 ©f g'ood stamens ; one pair of ster- 

 ile filaments. 



435 435 439 440 441 442 



* Corolla wheel-shaped or with a verj^ short tube, the lobes more or less unequal. 

 Calyx and corolla 5-cleft: stamens 5, some of them rather imperfect, {Verbdscum) Mullein. 



Calyx and corolla 4-parted : stamens 2, {Veronica) Speedwell. 



* * Corolla more or less tubular, bell-shaped and irregular, or 2-lipped. 

 -I- Upper lip or lobes covering the lower in the bud (except sometimes in Monkey-flower). 

 Corolla with its 2-lipped mouth closed by a palate, i. e. an inward projection of the lower 

 lip: stamens 4. 

 Corolla with a slender spur at the base on the lower side, [Linarla) Toadflax. 



Corolla sac-like at the base on the lower side, {Antirrhinum) Snapdragon. 



Corolla 2-parted: the lower lip sac-shaped in the middle; the short tube with a protuber- 

 ance at the base ou the upper side : stamens 4, {Collinsia) Collinsia. 



