. North American trees : being descriptions and illustrations of the trees growing independently of cultivation in North America, north of Mexico and the West Indies . Trees. H The Pines 7. MEXICAN NUT PINE — Pinus cembroides Zuccarini A low bushy tree of Arizona and adjacent Alexico, occurring on dn' mountain ridges at an altitude of about 1900 meters. Its usual height is about 6 meters, with a trunk diameter of 3 dm. It is reported to attain much greater dimensions in Mexico and is variously known as ]Mexican pinon or pinyon, Nut pine, Pinon and Stone pine; it is recorded as growing also in
. North American trees : being descriptions and illustrations of the trees growing independently of cultivation in North America, north of Mexico and the West Indies . Trees. H The Pines 7. MEXICAN NUT PINE — Pinus cembroides Zuccarini A low bushy tree of Arizona and adjacent Alexico, occurring on dn' mountain ridges at an altitude of about 1900 meters. Its usual height is about 6 meters, with a trunk diameter of 3 dm. It is reported to attain much greater dimensions in Mexico and is variously known as ]Mexican pinon or pinyon, Nut pine, Pinon and Stone pine; it is recorded as growing also in Lower CaHfornia. The trunk is short, its bushy branches forming a broad round head. The bark is about 12 mm. thick, irregularly and remotely fissured into broad plates which are covered by thin, light reddish brown scales. The twigs are slender, dark yel- low, becoming black; they are covered with pale matted hairs. The large con- spicuous bud-scales soon disappear. The branch-buds are about 6 mm. long, tapering to a sharp point, the scales brown and shining, ovate, acute or long- tipped. Juvenile leaves of this and the other nut pines are produced for the first five years or more, often to the exclusion of all others; they are flat, linear-lan- ceolate, strongly keeled and glaucous, entire, 18 to 25 mm. long, the new ones shorter as the buds of the fascicled needle-shaped leaves develop in their axils. The older leaves are in fascicles of 2 or 3, with a deciduous sheath, dark green, slender, to 5 cm. long, much cur^-ed, their tips elongated and thickened; they are marked by 4 to 6 rows of stomata on each ventral face and contain 2 dorsal resin-ducts and a single fibrovascular bundle; they are crowded at the ends of the branches and persist for three or four years. The staminate flowers are dense oblong or oval, 6 mm. long, the anthers yellow. The pistillate flowers are lateral and erect on stout stalks, ob- long, about 3 mm. long, their scales thick and dark red. The con
Size: 1534px × 1629px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkhholtandco
