406 WOODY PLANTS OF MASSACHUSETTS. 



The cranberry is found in every part of the State, in large 

 beds in boggy meadows. The berries are gathered in great 

 quantities, and used for making tarts and sauce, for which pur- 

 pose they are superior to any other article, especially as they 

 have the advantage of being kept without difficulty throughout 

 the winter. Their quality is much improved by being allowed 

 to become perfectly ripe on the vines. Great quantities of the 

 berries are exported to Europe. 



Found from the Arctic sea-shore to New Jersey, and from 

 Newfoundland to the Rocky Mountains. 



Sp. 2. The European Cranberry. O. palustris. Persoon. 



This plant, which has been found by Mr. Oakes on Nan- 

 tucket, in Pittsfield, and near Sherburne, has so near a resem- 

 blance to the common cranberry, that it would be taken by most 

 persons for a small variety of it. It is distinguished by its very 

 small, pointed leaves, rarely a fourth part of an inch in length, 

 and the short ovate segments of the corolla. It is the common 

 cranberry of the north of Europe, where it grows in turfy, 

 mossy bogs, particularly on mountains. Its berries are applied 

 to the same purposes as our cranberry, and great quantities are 

 sent from Russia to the more southern countries. 



XXI. 3. THE MOUNTAIN PARTRIDGE BERRY. 

 CHIOGENES. Salisbury. 



A North American genus of a single species. " The limb of 

 the calyx is four-cleft; the corolla broadly campanulate, deeply 

 four-cleft; stamens eight, included, inserted into the margin of 

 the even disk ; filaments very short and thickened, ovate, gla- 

 brous ; anthers of two ovate-oblong cells, fixed by the base, not 

 awned on the back; each 2-cuspidate at the apex, and opening 

 longitudinally along the inside from the summit to below the 

 middle. Ovary four-celled, free only at the convex summit; 

 style slender. Fruit white, crowned with the limb of the calyx, 

 four-celled, many seeded." — A. Gray:* from, the manuscript of 

 the N. A. Flora. 



* I owe it to the kindness of Prof. Gray that I have been allowed to copy from 

 his manuscript, the above generic description, which fixes, for the first time, the 



