CLASS XV. ORDER I. 53 



ORDER II. ANGIOSPERMIA, 

 A. Calyx 4-clcft. 



Sartsia. Calyx lobed, emarginate, coloured : corol 

 less than calyx j upper lip longest : capsules-celled; 

 seed angled. 



M'lampyrum. Corol with the upper lip compressed, 

 the margin folded hack : capsule 2-celled, oblique, de- 

 hiscent on one side : seeds 2, gibbous. 



B. Calyx 5 -deft or 5-leaved. >- 



Scrophnlaria. Calyx 5-cIeft : corol sub-gk>bose-,resiipi- 

 nate, middle division of lower lip reflexcd : capsule 2- 

 celled. Generally a rudiment of a fifth filament. 



Antirrhinum. Calyx 5-leaved or deeply 5 -parted, the 

 two lower divisions remote : corol ringent, spurred of 

 with a prominent base, throat closed with a prominent 

 pallate : capsule ovate, 2-vaIved, dehiscent at the apex. 



Gerardia. Calyx 5-cleft or 5-toothed : corol some- 

 what bellform, unequally 5-lobed : capsule 2-celled, de- 

 hiscent at the top. 



Pedicularis. Calyx 5 cleft or obliquely truncate : cor- 

 ol ringent : capsule 2-celled, nlucronate, oblique : seeds 

 numerous, coated* 



Mimulus. Calyx prismatic, 5-toothed : corol ringent, 

 upper lip folded back upon its sides : stigma thick : cap- 

 sule 2-celled, many-seeded. 



Chelone. Calyx 5-cleft or 5-leaved : corol ringfcnt, in- 

 flated ; the upper lip emarginate, obtuse ; under lip slight- 

 ly 3-cleft : the rudiment of a smooth filament between the 

 two tallest stamens: capsule 2-celled. 



Pentstemon. Calyx 5-cleft or 5-leaved : corol ringent, 

 inflated ; the rudiment of a bearded filament between 

 the two tallest stamens : capsule 2-celled. 

 * Linnsea, Verbena. 



CLASS XV. TETRAD YNAM1A. 

 ORDER I. SILICCLOSA. 



AH plants of this class* have flowers with 4 -leaved 

 calyxes and cruciform corols. 



Cochlearia. Silicic thick, to rulose, many-seeded, 2-val- 

 ved ; the valves gibbous 1 obtuse. 



Lepidium. Calyx spreading : corol regular : silicic 



E 2 



