52 CLASS XT. ORDER I. 



Cerastium. Calyx 5-leaved : petals 5, 2-cleft 

 capsule 1 -celled, dehiscent at top, tooth*like. 22 

 ^2-^vulgatumy (mouse-ear chickweed) petals equal 

 ling the calyx, plant hirsute, w. — viacosuntf vis 

 ecus, petals hardly longer than calyx, w. — semide 

 candncm, pentandrous, petals shorter than calyx, w 



Lychnjs. Calyx 1-leaved, oblong, smooth : pc 

 tals 5, with claws : the limb somewhat 2-cleft 

 capsule 1 or 5-celled. 22. 82 — chalctdonicay (cam- 

 pion) flowers in fastigiate heads. 2/. e. 



* Phytolacca. 



Order X. Decagynia. 



Phytolacca. Calyx o : corol 5-petalled, ca- 

 Jyx-like, inferior : berry 10-celled, 10-seeded. 54. 

 89 — decandra^ (pokeweed) leaves ovate acute, ra^ 

 cemes simple. 1}.. w. berries red. 



CLASS XL DODECANDRIA. 

 Order I. Monogynia. 



Asarum. Calyx 3 or ^-cleft, superior: corol o: 

 stigma 6-cleft: capsule coriaceous, crowned with 

 the calyx. II. 23 — canadense^ (wild ginger, or 

 white snake-root) calyx reflexed, leaves in pairs, 

 heart-reniform. ^ . p. root aromatic. — virginicum^ 

 leaves solitary, glabrous, cordate. 11. 



HuDsoNiA. Calyx tubular, 3-leaved, inferior : 

 corol 5-petalled : stamens 15 : capsule 1 -celled, 3- 

 valved, 3-seeded. 18. 51 — ericoides, (false-heath) 

 leaves. subulate-needle-form, hirsute, peduncles so- 

 litary, filiform. \ . y. 



PoRTULAccA. Calyx 2 cleft, inferior: corol 5- 

 petalled : capsule 1 -celled, opening transversely : 

 columella 5, filiform. 13. 86 — oleracea, (purslane) 

 leaves wedge-form, succulent, flowers sessile. 0. y. 



Lythrum. Calyx 6, 8, 10 or 12-toothed, inferi- 

 or : petals 5 or 6 on the calyx : capsule 2-celied, 



