. Key and flora : northern and central states . Botany. PINE FAMILY 15 4. P. virginiana Mill. Scrub Pine. A small tree, usually 20-30 ft. high, but sometimes much taller; bark of the trunk rough, nearly black; twigs smooth and with a bloom. Leaves in twos, 1-2 in. t4,. Fig. 1. Scotch pine (Pinus sylvestris) 1, a twig showing: a, stamlnate catkins; b, pistillate .catkins; c, a cone; d, needles. 2, an anther: a, side view; b, outer surface. 3, a carpel scale: a, inner surface; 6, outer surface, i, a a. cone scale, 6 a seed wing, and c a seed. 5, section of a seed, showing the embi-yo. 1 is natur
. Key and flora : northern and central states . Botany. PINE FAMILY 15 4. P. virginiana Mill. Scrub Pine. A small tree, usually 20-30 ft. high, but sometimes much taller; bark of the trunk rough, nearly black; twigs smooth and with a bloom. Leaves in twos, 1-2 in. t4,. Fig. 1. Scotch pine (Pinus sylvestris) 1, a twig showing: a, stamlnate catkins; b, pistillate .catkins; c, a cone; d, needles. 2, an anther: a, side view; b, outer surface. 3, a carpel scale: a, inner surface; 6, outer surface, i, a a. cone scale, 6 a seed wing, and c a seed. 5, section of a seed, showing the embi-yo. 1 is natural size; parts 2, 3, and 5 are magnified by the amount indicated by comparison with the vertical line alongside each. (After Wossidlo) long, rigid, sheaths very short. Staminate catkins dull, yellowish- purple, 1 in. long. Cones solitary, short-peduncled, often reflexed, ellipsoid-conic, about 2 in. long; scales thickened at the apex and. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bergen, Joseph Y. (Joseph Young), 1851-1917. Boston : Ginn
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1908
