POLYANDRIA. [CL. XIII. 



sometimes ten, roundish, undivided, longer than the calyx. 

 Filaments hair-like, much shorter than the corolla. Anthers 

 small, roundish, two-lobed. Germens numerous, small, oblong. 

 Styles hair-like, long, straight; stigma simple, smooth. Seeds 

 oblong, hairy, each with a very long, hairy, lateral tail. Recep- 

 tacle depressed, downy. Named from drys, the oak, on account 

 of a similarity in the leaves. 256. 



1. D. octopetala. Mountain Avens. Petals eight; leaves simple, 



downy beneath. Roots woody : stems erect, somewhat woody : leaves 



stalked, evergreen, egg-shaped, serrate, cottony beneath : flowers large, 

 solitary, white : styles feathery. Perennial: flowers in June: grows on 

 the higher mountains of Scotland, England, and Ireland : frequent. 

 Eng. Bot. vol. vii. pi. 451. Eng. Fl. vol. ii. p. 432. 790. 



12. COMA'RUM. MARSH CINQUEFOIL. 



Calyx inferior, of one leaf, coloured, permanent, the limb di- 

 vided into ten deep, acute, spreading segments, of which five 

 alternate ones are external and much smaller. Petals five, less 

 than the small segments of the corolla, lance-shaped, acute. Fila- 

 ments awl-shaped, erect, nearly as long as the corolla j anthers 

 roundish, two-celled. Germens numerous, small, egg-shaped, 

 collected into a head. Styles simple, short, straight, lateral ; 

 stigmas simple. Seeds numerous, naked, egg-shaped, upon a 

 large, dry, hairy, permanent receptacle. Name comaros, used by 

 Theophrastus. 257. 



1. C. palustre. Marsh Cinquefoil. Root creeping : stems ascend- 

 ing, round, panicled in the upper part, about a foot high : lower leaves 

 stalked, of five or seven oblong, acute, serrate leaflets, downy and whitish 

 beneath : the upper ternate, nearly sessile : flowers on panicled, downy 

 stalks : calyx large, dark-purple : petals very small, purplish. Peren- 

 nial : flowers in June and July : grows in boggy places. Eng. Bot. 

 vol. iii. pi. 172. Eng. Fl. vol. ii. p. 434. 791. 



CLASS XIII. POLYANDRIA. 



Plants bearing Flowers toith numerous Stamens, arising 

 from the receptacle. 



Order I. MONOGYNIA. One Pistil. 



Petals four. 



4. PAPA'VER. Calyx two-leaved, caducous. Capsule one-celled, 

 opening by pores under the stigma. 



2. CHELIDO'NIUM. Calyx two-leaved, caducous. Pod linear, one- 



celled. 



3. GLAU'CIUM. Calyx two-leaved, caducous. Pod linear, with 



two or three cells. 

 1. A.CTJE'A. Calyx four-leaved, caducous. Berry one-celled. 



