Life history of shortleaf pine (1915)Mattoon, W. R. (1915a). Life history of shortleaf pine. Bulletin of the US Dept. of Agriculture No. 244. Retrieved from https://catalog.hathitrust.org/Record/010668745 It is important to distinguish clearly the true shortleaf pine (Pinus echinata Mill.) — variously known throughout portions of its range as “yellow”, “old-field”, “rosemary”, “two-leaf”, “heart”, and “spruce” pine— from other so-called shortleaf pines of the Southern States. Confusion occurs because of the custom, more or less generally prevailing throughout the South, of distinguishing only two kinds of pine, shortleaf and longleaf. Under this custom, the pine most comonly included with shortleaf is loblolly pine, slash pine being classed in similar manner as longleaf pine. Shortleaf is most readily distiinguished from loblolly pine by means of differences in leaf and cone, described on page 7. Other pines associated with shortlead are the smaller, crooked-stemmed scrub pine and the northern pitch pine which seldom forms old-field stands and grows both in wetter and coolder situations. https://catalog.hathitrust.org/Record/010668745
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