108 DICOTYLEDONOUS PLANTS. 



incised ; flowers terminal, in a crowded corymb P. confcrtijhra Torr. 



ft. Lefim. P. pennsyhanica Torr. in Ann. N. Y. Lye. ii. 197. Geum 



agrimonoidcs Pursh. Bootia sylvestris Big. 



HAB. N. S. N. to Arc. Amer. June, July. !. Stems many. 

 3 feet high, erect, nearly simple, branched above and \vi. 

 petioles, peduncles and calyx covered-with a whitish and glandu- 

 lar pubescence. Leaves unequally pinnate, with the leafets un- 

 equally and doubly serrate, and sometimes lobed. Flowers erect, 

 at first in dense corymbs, at length paniculate. Calyx with the 

 five alternate segments smaller. Petals pale yellow. Styles 

 lanceolate, naked. Richardson's Appendix to Fran/din's Jour. p. 

 20. 



12. P. comarum DC Cand. : root creeping ; stem ascending, leaves 

 pinnate ; upper ones ternate ; leafets lanceolate, acutely serrate ; petals 

 lanceolate, acuminate, much shorter than the calyx. P.paliistrcLehm. 

 Torr. Comarum palustre Linn. 



HAB. In swamps. N. S. N. to Arctic America. June. 2^. 

 Stem 18 inches high. Flowers large, purple, on the upper part 

 of the item. Marsh Cintpirfu'd. 



10. SIBBALDIA. Linn. 



Calyx 10-cleft, with the alternate segments narrower. 

 Petals minute. Stamens and carpels often 5. Styles 5, pro- 

 ceeding laterally from the germ. Seeds 5, clustered in the 

 bottom of the calyx. Pentandria. Pentagynia. 



S. procumbens Linn. : leaves 'ternate ; leafets auneate, tridentate, 

 smooth above, hairy beneath ; flowers corymbed ; petals lanceolate, 

 acute, about as long as the calyx. 



HAB. High mountains. Can. and Ver. 1?. A small procumbent 

 plant with the habit of PotentiUa tridcntata. Flowers yellow. 



11. AGRIMONIA. Linn. 



Calyx inferior, 5-cleft, with a lobed calicle at its base. Pe- 

 tals 5. Stamens 15. Acines 2, in the bottom of the calyx. 



Icosandria. Di- Pentagynia. 



1. A eupatoria Linn. : hairy ; leaves interruptedly pinnate ; leafets 

 oblong-ovate, crenate-dentate, the terminal one petioled ; spike vir- 

 gate, many-flowered, terminal, long and slender ; tube of the calyx 

 bell-shaped, with spreading bristles near the middle ; petals twice as 

 long as the calyx ; fruit distant, turbinate, hispid, smooth at base. 



HAB. Woods and hedges. Can. to Car. W. to Miss. July. 2/. 

 Stem 2 feet high. Flowers yellow, in a long terminal spike or 

 raceme. Agrimony. 



2. A. parriflora Ait. : somewhat hairy ; leaves interruptedly pin. 

 nate ; leafets numerous, linear-lanceolate, incisely serrate ; spike vir- 

 gate ; flowers on very short pedicels ; petals once and a half the length 

 of the calyx ; fruit roundish, divaricately hispid. 





