206 Class XII. Order V. 



210. BOOTIA.* 



BOOTIA SYLVESTRIS. . 



B. caule erecto,foliis inferioribus pinnatis, hirsuto- 

 tomentosis ; floribus subcorymbosis, subsessilibus. 



Stem erect, lower leaves pinnate, hairy and downy ; 

 flowers in small corymbs, nearly sessile. 



The whole herb is covered with hairy down. Root leaves 

 and lower stem leaves pinnate, leafets sessile, oval, acute, doubly 

 toothed and slightly cut, the lower ones and sometimes the inter- 

 mediate ones smaller. Stem two feet, high, rigid, erect, round, 

 furrowed. Stipules half ovate, acuminate, mostly entire. Upper 

 leaves ternate or simple. Flowers terminal, in small crowded 

 corymbs. Calyx segments downy, alternately lanceolate and 

 ovate. Petals orbicular, white, as long as the calyx. Anthers 

 compressed, roundish. Nectary a stellate cavity surrounding the 

 base of the receptacle of the germs, having pits in its Jive points 

 opposite the narrow segments of the calyx. Seeds oblong, pointed, 

 awnless. Receptacle hairy. 



Found in June 1816, on the precipice behind Bellows' Falls, 

 N. H. Also in Deerfield, Mass. 



I am not aware that this plant has been yet described. With 

 some of our botanists it has passed for Geum agrimonioides of 

 Pursh ; but it is no Geum. The peculiar nectary alone sep- 

 arates it from Potentilla. 



211. GEUM. 

 GEUM RIVALE. L. Water Avens. 



Radical leaves lyrate ; stipules ovate, acute, cut ; 

 flowers nodding, awns feathery, twisted. Sm. 



A fine plant conspicuous in meadows for its high, nodding, 

 dark coloured flowers. Stem round, erect, drooping at top. 

 Radical leaves lyrate or interruptedly pinnate, the terminal 

 leafet large and lobed, the whole serrate and hairy. Flowers 

 terminal, two or three on a stalk ; calyx reddish brown, closed ; 



* Arnicissimo, et de botanice oplime mcrito, Francisco Boott, genus 

 catura, 



di- 



