144 FLORA OF MOUNT DESERT. CUPULIFERÆ. OAK FAMILY. BETULA, L. BIRCH. 468 B. lenta, L. BLACK BIRCH. SWEET BIRCH. Woods and copses; frequent. 469 B. lutea, Mx. f. YELLOW BIRCH. C.P.Q.S.K. GR.XC.BR.D. Common in woods. 4C. But Rsa- 470 B. populifolia, Marsh. WHITE BIRCH. GRAY BIRCH. C.K. Very common in poor soil. 471 B. papyrifera, Marsh. B. papyratea, Ait. PAPER BIRCH. CANOE C.B.P. BIRCH. D.G.R.Bie.Cal.N.D.RduX.Q.S.K.MA. Common in woods. XC.BR+GR.Places 4CT Rsa- ALNUS, L. ALDER. 472 A. viridis (CHAIN), DC. GREEN ALDER. C.B.P.RduX.Q.S.K.T Very common at all altitudes in dry soil. Met.Bie.Cal+XK.BR. 473 A. incana (L.), Willd. SPECKLED ALDER. C.B.P.Q.K.A.D+Dap+ Common in low grounds. Met.GR.XC.BR+GR.4C Rsa- mb. CORYLUS, L. HAZEL-NUT. 474 C. rostrata, Ait. BEAKED HAZEL-NUT. Plut.DaK.GR.D.BR.XC.N. Frequent in woods and clearings, and by roadsides. North- west Cove; Emery District; Dog Mt.; Sargent Mt.; Aunt Mollys Beach; Somesville, etc. (Rand);—Echo Notch (R. & R.). 4C X.Cal. 4C.S.Met QUERCUS, L. OAK. 475 Q. rubra, L. RED OAK. Frequent; widely distributed, but nowhere very abundant; Q.S. rare in the south of the Island. Much dwarfed on the moun- tains. During the early history of the Island oaks were ap- parently abundant, although probably of this species only. At a very early day, however, the oak woods began to be felled for timber. At Somesville, it is said, there was an oak wood on the shores of Somes Harbor, which attracted the attention of X.