POLYANDRIA. DI-PENTAGTNIA. ^ 15 



A ,^enus of 16 species, almost equally divided betwixt 

 the alpine regions of Europe and Siberia. 



375. AQUILEGIA. L, (Columbine.) 



Calix none. Petals 5. Lepcmthia 5, corni- 

 culate, situated between the petals. Capsules 

 5f distinct. 



Leaves once or twice tei-nately divided; flowers termi- 

 nal, scattered, reddish or vioLiceuus. 



Species. 1. A. canadensis. — A g-enus of 6 speciesj 

 partly indigenous to Siberia and Europe. 



$74. CIMICIFUGA. i. (Black Snake-root.) 

 Calix 4 or 5-leaved. Petals 4 to 8 deformed, 

 thickisb, sometimes wanting;. Capsules I to 5, 

 oblong, many-seeded. Seeds squamose. 



Leaves large, usually biterna^ely compounded; flowers 

 spiked, terminal, white, spikes simple or paniculated; sta- 

 nina subclavate, long and numerous, anthers small, ad- 

 nate to the filaments. 



Species. 1. C. racemosa {AcUa racemosa. L) 2. 

 fcetida. 2. americana. A. palmata. Does this exception- 

 able plant belong indeed to Cimicifvgal — A North Ameri- 

 can genus. 



375. ASCYRUM. L. (St. Peter's-wort.) 



Calix 4-leaved; the 2 interior cordate and 

 larger. Petals 4. Filaments disposed in 4 par- 

 cels. Capsule oblong, 1 -ceiled, 2-valved, inclu- 

 ded in the calix. (^Styles 2 or 3.) 



Suflruticose or herbaceous plants, very similar to the 

 following genus; leaves opposite, entire, marked with resi- 

 nous punctures; flowers solitary and terminal or subco- 

 rymbose. Seeds punctate, attached to the margins of the 

 valves. 



Species. 1. A. pumihnn. 2. * paudjlorum. Decum- 

 bent, diff"use, small, with many stems: leaves approximate, 

 linear-oblong, obtuse, ratlier minute; flowers rare, solita- 

 ry, pedicell reflected, bibracteate at the base; style 1. 

 Hab. In the open forests of Georgia. SullVuticose; leaves 

 little more than aline wide, often nearly of equal breadth; 

 flowers very rare; style unusually long, simple; stems fili- 



