. I nostri alberi nativi e di come identificarli; un famoso studio delle loro abitudini e le loro peculiarità. Alberi. Famiglia di pino di rado di quattro, slanciato, blu scuro verde, serrulate, acuta, con punte insensibile, morbido, da tre a cinque pollici a lungo ; fasci fibro-vascolari due. Guaine e sottile di colore bianco argenteo in un primo momento, divenuta più tardi daik marrone grigiastro. Persistono da due a cinque anni. Fiori.-Staminate fiori in breve i cluster affollate, vicino alla punta della crescente germogli, oblungo cilindrico, tre quarti di un pollice lungo; antere viola chiaro con orbicular, leggermente denticulate creste ; involucral brattee otto a

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. Our native trees and how to identify them; a popular study of their habits and their peculiarities. Trees. Pine family rarely of four, slender, dark blue green, serrulate, acute, with callous tips, soft, three to five inches long ; fibro-vascular bundles two. Sheaths thin, silvery white at first, later become daik grayish brown. Persist from two to five years. Flowers.—Staminate flowers in short crowded clusters, near the tip of the growing shoots, oblong-cylindrical, three-quarters of an inch long; anthers pale purple with orbicular, slightly denticulate crests ; involucral bracts eight to ten. Pistillate flowers in clusters of two, three or four, subterminal, oblong or subglobose, one-third of an inch long ; scales ovate, rose pink, with slender tips ; bracts nearly orbicular. Cones.—Lateral, very abundant, oate or oblong-conical, one and a half to two and a half inches long, persist several years. Scales nearly flat, obtuse, thickened at ape.x, marked with a prominent transverse ridge, armed with small, slender, nearly straight, de- ciduous prickles. Seeds triangular, brown, mottled with black ; wings broadest at the middle, thin, pale brown, one-half an inch long. GRAY PINE. JACK PINE. SCRUB PINE P}nlts Jn'CiriLCtla. Frequently seventy feet high with straight branchless trunk, long spreading branches forming an open symmetrical head ; often much shorter and sometimes shrubby. Fruits when very young. A north- ern tree, ranging from No'a Scotia southward to iIaine, Xew Hamp- shire, and Vermont, westward to northern Indiana and Illinois, and in the northwest to the vallej' of the ^lackenzie River, where it is the only pine tree. In sandy soil, sometimes formintr exclusi'e forests. Bark. — Dark brown with reddish tinge, with shallow rounded ridges separating into small ap- pressed scales. Branchlets slender, tough, flex- ible, pale yellow green, becoming dark reddish purple and later dark purplish brown. Wood.—Pale brown, rarely yellow, sapwood nearly

Parole chiave associate all'immagine

• bookcentury1900
• bookdecade1910
• bookpublishernewyo
• bookyear1910