64 PLANTS OF MASSACHUSETTS. 



%3lchemilla^ another genus of this order, found on the high 

 mountains of Vermont and New Hampshire, is, perhaps, yet to 

 be found on the mountains of Massachusetts. 



ORDER 73. ROSACEA. The Rose Tribe. 



Calyx 4 or 5-lobed, with 5 equal petals ; stamens numerous, 

 on the calyx and within the petals ; ovary superior, 1 or more, 

 1-celled ; leaves simple or compound, alternate, and with 2 

 stipules at their base. 



All the rosaceous plants and their fruits are healthful. They, 

 or some of them, are used for their astringency, or as a febrifuge, 

 or for tanning, some for their fruits as food, some as tonic and 

 emetic, others as anthelmintic ; a list of very different properties. 

 They are very beautiful plants, and are widely diffused over the 

 temperate and cool parts of the northern hemisphere. The order 

 is large, and contains more than forty species in this State, besides 

 the exotics of the family. 



Rose is from an Armorican v\^ord, meaning red^ the common 

 color of the flowers. 



Rosa. L. 11. 12. 



R. corymbosa. Ehrh. Swamp Rose. Stem 3 — 8 feet high, 

 prickles none, or else recurved, with leathery leaves, pinnate, 

 5-7 leafets, and long stipules ; flowers somewhat in corymbs ; 

 fruit commonly hispid ; petals large, red, emarginate ; flowers in 

 June, in swamps. 



R. lucida. Ehrh. Grows about ponds and borders of marshes, 

 3-6 feet high, shrubby, with entire segments of calyx, spread- 

 ing, appendaged ; flowers large, with emarginate petals, red ; 

 blossoms in July or August. It flourishes well in yards and 

 gardens, and, as it blossoms after all the other species have 

 dropped their flowers, and continues to blossom for a considerable 

 time, it forms a valuable addition to our flowering ornamental plants. 



R. parviflora. Ehrh. Small-flowered. This seems to be R. 

 Caroliniana, Mx., a small and handsome rose of the woods, rather 

 shrubby ; blossoms in .Tune. 



