. Bulletin (Pennsylvania Department of Forests and Waters), no. 33-35. Forests and forestry. i 16 BudH red-hroivn and resinous; scales indistinct. Needles 3, rarely 4; heavy, stiflf, 21/2"—5" long, yellowish green. Cones with short rigid prickles, wide base, thick tipped scales: sessile and very persistent. Growth irregular; form often poor because of insect at- tacks Common on poor, sandy soils and areas where forest fires have raged. (Mg. 2). Figure 2 White Pine. 1. Twig and foliage. 2. Fascicle of foliage in winter. 3. Cone Pitch Pine. 4. Twig and foliage. 5. Foliage fascicle. 6.
. Bulletin (Pennsylvania Department of Forests and Waters), no. 33-35. Forests and forestry. i 16 BudH red-hroivn and resinous; scales indistinct. Needles 3, rarely 4; heavy, stiflf, 21/2"—5" long, yellowish green. Cones with short rigid prickles, wide base, thick tipped scales: sessile and very persistent. Growth irregular; form often poor because of insect at- tacks Common on poor, sandy soils and areas where forest fires have raged. (Mg. 2). Figure 2 White Pine. 1. Twig and foliage. 2. Fascicle of foliage in winter. 3. Cone Pitch Pine. 4. Twig and foliage. 5. Foliage fascicle. 6. Cone 4. Shortleaf Pine,—Pinus echinata, Mill. Twigs pale glaucous to purple-hrown; circular x-section. Buds striate; with pale gray-hrown, close-lying, acute scales; very seldom resinous. Needles 2, 3 or even 4; slender and rather flexible; 6 — 4" long, dark green,close-set on twigs, not twisted. Bark much like pitch pine but slightly smoother. Cones narrow-hased; vnth thin-tipped, weakly armed scales. 17 Growth irregular. Form excellent. Occurs on medium to good soils and at rather low eleva- tions in Pennsylvania, 5. Jersey Pine,—Pinus virginiana, Mill. Twigs usually slender and curved, flexible, terete, glau- cous brown to purple. Buds brownish, more or less resinous. Needles 2 (very rarely 3), diverging and twisted, IMs"— 3" long, stout, dark green, fragrant, sparse on twigs. Crooked tree of poor form unless crowded; with smooth- est thinnest hark of any native pine. Crown open. Growth irregular. Tree of poor soils, but absent at higher elevations in Pennsylvania. Often killed by bark beetles. 6. Table Mountain Pine,—Pinus pungens, Lamb. Needles 2, very stiff and sharp; 2"—4" long. Cones as large as the clenched fist; scales very thick, with stout claw-like spines. Seeds trianglar. Otherwise like pitch pine; but usually of poorer form, be- cause it grows on the most adverse sites; common on wind- swept mountain slopes and ridges. 7. Re
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectforests, bookyear1923
