POPULAR FLORA. 



175 



61. PIGWOET FAMILY. Order SCROPIIULARIACEiE. 



Herbs with a 2-lipp(;d or more or less irregular monopetalous corolla, and 4 stamens 

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



\ \ L I /&,^\ 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 iobes 

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



434. Corolla of « Penlatemon, 

 taid opeD, Ehowin^ the 4 perTuct 

 ■tamena and the fifth as a sterile 

 naked filatnent. 



435. Stamens (with a piece of 

 the corolla) of another Penlste. 

 mon, with the sterile filanient 

 bearded. 



436. Piece of Purple Gerardia. 



437. Corolla laid open, showing 

 the 4 stamens in pairs. 



438. Style and calyx of the same. 



439. Part of a pod. 



440. Flower of Toadflax. 



441. Plant of Hedge-Hyssop. 



442. Flower laid open ; one pair 

 ef good stamens ; sne pair of ster- 

 ile filaments. 



435 436 439 440 441 443 



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

 Calyx and corolla 5-cleft: stamens B, some of them rather iinperfect, {VerUscum) Mullein. 



Calyx and corolla 4-parted : stamens 2, (Veronicci) Speedwell 



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

 ^- Upper lip or lobes covering the lower in the bud (except sometimes in Jlonkey-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, (Linaria) Toadflax. 



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



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

 ance at the base on the upper side : stamens 4, ( CulUnsia) Collinsla. 



