406 



PHYSICAL GEOGRAPHY. 



WATER-STARWORT FAMILY. 



Callitriche verna. Water-starwort. * 

 C. terrestris. 



SPURGE FAMILY. 



Euphorbia polygonifolia. . . . S 



E. maculata. 



E. hypericifolia. Spurge. 



E, Esula. 



E. Cyparissias, 



Acalypha Virginica. 



Three-seeded Mercury. 



CROWBERRY FAMILY. 



Empetrum nigrum-. Crowberry. . M 



NETTLE FAMILY. 



Ulmus fulva. Slippery elm. 



U. Americana. White elm. . . * 



U. racemosa. 



Walpole, Hanover. 



Celtis occidentalis. Sugarberry. 

 Claremont, Walpole. 



Morus alba. Mulberry. 



Urtica gracilis. 

 U. dioica. Nettle. 

 U. urens. 



Laportea Canadensis. Wood-nettle. 

 Pilea pumila. Richweed. 

 Bcehmeria cylindrica. False Nettle. 

 Cannabis sativa. Hemp. 

 Humulus Lupulus. Hop. 



PLANE-TREE FAMILY. 



Platanus occidentalis. Buttonwood. A 



WALNUT FAMILY. 



S Butternut. 

 Ju g lanscmerea.) oilnut< 



Carya alba. Shell-bark Hickory. 

 C. tomentosa. Pig-nut. 



C. porcina. .... 



Claremont. 



C. amara. 



.*A 



. *A 

 A 



OAK FAMILY. 



Quercus alba. White oak. . . *A 

 Q. obtusiloba. Post-oak. . . . A 



Q. Prinus. Chestnut oak. . . . A 

 Amherst, West Ossipee. 



Q. nigra. . . . . . . A 



Q. ilicifolia. Scrub-oak. . . . *A 



Q. coccinea ; var. tinctoria. Black oak. A 

 Q. rubra. Red oak *A 



Castanea vesca. Chestnut. 

 Fagus ferruginea. Beech. . 



Corylus Americana. . 

 C. rostrata. Hazel-nut. 



Ostrya Virginica. Lever-wood. 



.*A 



.*C 



* 



* 



Americana . 





SWEET-GALE FAMILY. 



Myrica Gale. Sweet Gale. . . * 



M. cerifera. Bayberry. . . . S 

 Milford, New Boston. 



Comptonia asplenifolia. Sweet Fern. *A 



BIRCH FAMILY. 



Betula lenta. Sweet, or Black Birch. 

 B. lutea. Silver, or Yellow Birch. . * 

 B. alba ; var. populifolia. White Birch. *A 



B. papyracea. 



Canoe, or Paper Birch. * ; f M 

 B. nigra. 



Atkinson, Acworth. 



B. pumila. Low Birch. 



B. glandulosa. Dwarf Birch. . . M 



Alnus viridis. Mountain Alder. C ; |M 

 A. incana. Common Alder. . . * 

 A. serrulata ...... A 



WILLOW FAMILY. 



Salix Candida ...... C 



S. humilis. 



S. discolor. ..... * 



S. sericea. 



S. -viminalis. 

 Rollinsford. 



A S. cordata. . 



