89 



e Vaccinium Vitis-Idsea, L. (COWBERRY.) First noticed by 

 Oakes & Osgood, at Danvers, about 1820, where is the only locality 

 yet found in the state. Fortunately the place is not generally known, 

 and this rare plant is not likely to be exterminated at present. 



Vaccinium Pennsylvanicum, Lam. (DWARF BLUEBERRY.) 

 The commonest and earliest of this genus. 



Vaccinium vacillans, Solander. Smaller than the last. Quite 

 common on dry hills. 



Vaccinium corymbosum, L. (SWAMP OR HIGH BLUEBERRY.) 

 Very abundant in all low lands. It is a variable plant, often growing 

 to considerable size, with a trunk 2 inches in diameter. 



Chiogenes hispidula, T. & G. (CREEPING SNOWBERRY.) 

 Georgetown, Mrs. Homer, Essex Woods, etc. Scarce. 



Arctostaphylos Uva-ursi, Spreng. (BEARBERRY.) Danvers, 

 Peabody, Gloucester, etc. A variety having red flowers is found in 

 Boxford by Mrs. Homer. 



Epigsea repens, L. (MAY FLOWER. TRAILING ARBUTUS.) Glou- 

 cester, Topsfield, Boxford, " Salisbury," J. Q-. WhiUier, Lawrence, 

 Miss Cabot. Scarce. In localities once yielding abundance of flowers 

 it is fast being exterminated by over-zealous collectors. 



Gaultheria procumbens, L. (CHECKERBERRY.) Very common 

 everywhere. 



Leucothoe racemosa, Gray. Dr. Chas. Pickering remembered 

 having collected this plant somewhere in the county, about 1824, but 

 it was very scarce. 



Cassandra calyculata, Don. Common around the borders of 

 ponds. 



Andromeda polifolia, L. This beautiful little plant is very 

 scarce, the localities in Wenham and Danvers being the only ones 

 well known. 



Andromeda ligustrina, Muhl. A shrub of considerable size, 

 resembling a High Blueberry. Common along roadsides and in the 

 woods. 



Clethra alnifolia, L. Very abundant. When in flower a most 

 fragrant plant. 



CALLUNA. VULGARIS, Salisb. (COMMON HEATH.) The well-known 

 locality at Tewksbury is quite near Essex County, but it has been 

 since found in Andover. It hardly seems possible that this can be 

 other than an introduced plant. 



Kalmia latifolia, L. (MOUNTAIN LAUREL.) Abundant from 

 Gloucester northwestward, and along the Merrimac Kiver. The 

 flowers vary much in color, from white to deep pink. A variety 

 having double flowers was collected in Gloucester, by Mr. G. D. 

 Phippen. 



