226 POLYAKDEIA. [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. Re- 

 ceptacle depressed, downy. Named from drys, the oak, on ac- 

 count 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 

 divided 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. 

 Filaments awl-shaped, erect, nearly as long as the corolla ; 

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

 shaped, collected into a head. Styles simple, short, straight, 

 lateral j stigmas simple. Seeds numerous, naked, egg-shaped, 

 upon a large, dry, hairy, permanent receptacle. Name coma- 

 ros, used by Theophrastus. 257- 



1. C. palustre. Marsh Cinquef oil. Root creeping: stems as- 

 cending, 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 : pe- 

 tals very small, purplish. Perennial : flowers in June and July : 

 grows in boggy places. Eng. Bot. vol. iii. pi. 172. Eng. Fl. vol. ii. 

 p. 434. 79 1, 



CLASS XIII. POLYANDRIA. 



Plants bearing Flowers with 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. ACT^E'A. Calyx four-leaved, caducous. Berry one- celled. 



