File:Bulletin (Pennsylvania Department of Forestry), no. 11 (1901) (19879018344).jpg

Title: Bulletin (Pennsylvania Department of Forestry), no. 11
Identifier: bulletinpennsylv11pennx (find matches)
Year: 1901 (1900s)
Authors: Pennsylvania. Dept. of Forestry
Subjects: Forests and forestry
Publisher: Harrisburg, Pa. : The Department : WM. Stanley Ray, state printer of Pennsylvania
Contributing Library: Penn State University
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

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20 the exclusion of all other trees. The Scrub Oak type usually follows after forest fires that occur on land coxeved with the Chestnut-Rock Oak-Pitch Pine type. The Aspens also occur locally with the Scrub Oak. Pitch Pine, the most lire resistant tree native to Pennsyl- vania, often forms an open shelter growth over the Scrub Oak The Oak-Hickory Type comprises more diflferent kinds of trees than any other forest type found in Pennsylvania. It prevails in the woodlots in the agricultural valleys and on the bordering foothills It IS common in the Delaware, Schuylkill, Susquehanna, Cumberland,' Chester, Lancaster, Lebanon and Buffalo valleys and it is the pre- vailing forest type in the western part of the State. It is very irree- ular in outline. Usually one finds it at lower elevations but some of Its arm-hke extensions reach far into the mountain valleys The principal members of this forest type are: White Oak, Black Oak Red Oak, Scarlet Oak, Bur Oak, Shagbark Hickory, Mockernut Hlck^ ory. Pignut Hickory, Black Walnut, Red Mulberry, Sassafras, Hack- berry and Red Cedar. , «,v,b. The River and Swamp Hardwood Type occurs along all the princi- pal rivers of the State and their main tributaries. The principal members of this type are: Silver Maple, Ash-leaved Maple, River Birch, Walnut, White Oak, Black Ash, Swamp Hickory and Syca- more. At higher elevations Red Maple, Black Gum and the Tulip Tree may also be found in this type and at lower elevations the Red Osier Dogwood, Buttonwood and Willows are associated with the tree members of the type. The Sweet Gum-Willow Oak Forest Type is found only in the ex- !lZ "*^^"^'«" P^'t "f Pennsylvania. Outposts of it are found along the Susquehanna River and a few important tributaries of the wTlloTo r'p. "^'I' ^"'"' "^ tyP*- «â¢â¢Â«= Sweet Gum, Willow Oak Christmas Holly and Persimmon. In addition to these Maloir r"' '^'â "' ""^*' ^"^' «hort-leaved Pine and Laure Magnolia sometimes occur in this type. The nine forest types which have been described are sufficient to piepare an accurate forest description of Pennsylvania. They will be of great help in classifying the forest structure of the State and n working out practical methods of handling the forest We mus more tuU.T Z" T ""'" """ ""^erstand the forest structure successSy "'" '"'* '"''''' ^^'^^'^'^ -"^^^^ -> ^ aPP»e<i THE ESTABLISHMENT OF THE FOREST As rapidly as the mature forests on absolute forest soil are re- which follow in the wake of those removed may be established by one
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