APPLICATION OF PHYTOSOCIOLOGICAL TECHNIQUES 



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Table 8. Tree species having the greatest density on a sample plot of equatorial 

 rain forest at Mucambo, including only those 10 cm. and over d.b.h. 



Species 



Echweilera odora 



Protium trifoliolatum 



Eschweilera krukovii 



Vochysia guianensis 



Protium sp.? "Breu mescla" . . 



Tovomita stigmatosa 



Iryanthera juruensis 



Protium fwdulosum 



Goupia glabra 



Vouacapoua americana 



Protium carnosum 



Theobroma subincana 



Sapotaceae, Gen. sp.? 



Micropholis acutangula 



Vantanea cupularis 



Protium polybotryum v. blackii 



Protium punctiadatum 



Poraqueiba guianensis 



Piptadenia suaveolens 



Sterculia pruriens 



Tapura singularis 



Iryanthera paraensis 



Helicostylis peduncidata 



Osteophloeum platyspermum . . . 

 Echweilera blanchetiana 



" Densities were calculated two ways. The first employed the original lists of 

 Dr. Pires, giving a total of 1,188 trees, and the second — used in this table and in 

 the summary table 1 1 — is based on our re-measurements and the elimination of trees 

 nearly but not quite 1 dm. d.d.h., and a few that died in the interval between the 

 two measurements. The latter gave a total of 897 stems on 2 hectares. 



