A. Negundo L. Box- Elder, Ash-lcaved Maple. 



Abundant in much of Connecticut Valley where undoubtedly native north to 

 Columbia ; elsewhere frcc|uent escape irom cultivation to dumps, waste-areas, etc. 



Aesculus glabra Wilhl. ()hiii Buckeye. 



Spontaneous in woods at Rochester in Strafford County, planted parent-tree occur- 

 ring nearby : introduced from farther west and south in United States. 



Rhammus alnifolia L'Her. Alder-leaved Buckthorn. 



Swamps and wet bushy meadows at low elevations; local in small scattered colonics 

 i.i north and central New Hampshire, outlyin"" stations to southeast in Lee and 

 Kensington : the range — statement applied to it in Gray's Manual ed. 8, " — n. and 

 w. New England" hardly applies to the Lee and Kensington stations. 



R. cathartica L. Common Buckthorn. 



Frequent escape from cultivation in southern Xew Hampshire nortli to Hanover 

 and Ossipee ; occurs chiefly in t'nickets and fence-rows; naturalized from Europe. 



R. Frangula L. Alder-Buckthorn. 



Becoming thoroughly naturalized locally in thickets, pastures and moist woods in 

 settled areas : at current rate of spread may be expected to become abundant in a 

 few years: naturalized from Europe: Rhodora 52:163, l'^)5(). 



Ceanothus americanus L. New Jersey Tea. 



Locally abundant, becoming scarce northward ; southern species reaching north- 

 eastern limits in central Maine extending nortli in New Hampshire to Haverhill in 

 Connecticut Valley, Concord in Merrimack \'alley and Durham in Strafford County; 

 dry woods, slopes and roadside-banks. 



Parthenocissus quinquefolia L. Mrginia Creeper, Woodbine. 



Supposed to be native north to southwest Maine and southern New Hampshire ; 

 most of the New Hampshire material may have escaped from cultivation, roadsides 

 h.aving been the most frequent habitat for collections ; common as an escape or native 

 in Rockingham and Hillsboro counties, outlying stations in Hooksett and Lebanon : 

 forma hirsuta (Donn.) Fern., with leaflets pubescent beneath not known from New- 

 Hampshire. 



P. inserta (Kerner) K. Koch. 



Generally common throughout at low elevations ; woods, thickets, borders of streams, 

 and wooded rocky slopes : forma dnhia Rehd. with leaves pubescent beneath, oc- 

 casional : forma macropliylla (Lauche. ) Rehd. with large leaves is frequent in rich 

 soil and around dumps, etc., and seems to be an environmental state. 



Vitis labrusca L. Fox-Grape. 



Frequent in southern and central New Hampshire ; roadsides, low woods, and 

 river-banks north to Tamworth, Wilmot, and Hanover ; perhaps many of numerous 

 occurrences are escapes from cultivation ; improved cultivars have been grown exten- 

 sively throughout the present range. 



V. aestivalus Michx. var. aestivalis. Summer-Graiie. 



Single specimen from Hillsboro; northeastward extension of range. 



\"ar. argentifolia ( Munson) Fern. Summer-Grape. 



Reaching northeastern limit in southern New Hampshire, northernmost stations 

 in Rochester, Barrington, Hooksett, and Charlestown, becoming more common south- 

 ward, particularly in Rockingham County ; dry, often rocky woods. 



V. riparia Michx. var. riparia. River-liank or Frost-Grape. 



Common along lower Connecticut River north to Lebanon ; infrequent north to 

 Plymouth, Bartlett and Shelburne, somewhat isolated in Strafford County ; river- 

 banks and rich thickets at low elevations. 



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