38 THE STUDY OF PLANT COMMUNITIES • Chapter HI 



TRENCHING STUOY "2. SHORTLEAF PINE TYPE 

 CONTROL PLOT 9-12-34 



A = Andropogon ternanuS 

 Ad = Aster dumosus 

 Ca = Catnenna angustifoiia 

 Cp = Ciadonia pyxidata 

 C = Ciador..a sylvatica 

 = Oicranum scoparium 

 Ds = Oicranum spunum 

 •Ov= Diospyros virginiana 



0.35 «Pe 

 E = Eupatonum hyssopifolium 

 G = Grass seeding 

 H = Herbaceous seedling 

 L = Lespedeza repens 

 Oe = Oenothera longipedicellata 

 Ox = Oxahs stncta 

 P = Pamcum sphaerocarpon 

 Scale 



»Pe = Pmus echinata 



Pq = Psedera qumquefoiia 



•Q = Quercus velutina 

 SB = Smilax bona-nox 

 S = Sohdago nemorahs 

 T b Thuidium dehcatulum 



•U = Uimus alata 

 V = Viburnum afhne 



0.66 leet 



FIG. 13. The system of mapping used in the study illustrated in Figure 12. 

 Such a procedure is adaptable to many situations/" 



146 



present, giving their size and distribution within the area. This is 

 usually time-consuming, even on small quadrats with a relatively- 

 simple arrangement and few species. It does, however, permit 

 study at a later date— an advantage not to be ignored under many 

 circumstances. Small quadrats may be photographed with consid- 

 erable success if proper equipment can be brought to them con- 

 veniently. Camera stands of various sorts have been designed that 

 permit vertical views, and the photographs can be studied at leis- 



