00921naa a2200193 a 450000100080000000500110000800800410001910000170006024500840007726000090016152004140017065000130058465000100059765000120060765300110061970000200063070000170065077300600066720047802025-06-25 1953 bl uuuu u00u1 u #d1 aPIRES, J. M. aAn estimate of the number of species of trees in an amazonian forest community. c1953 aThis also shows that many speeies present in the communities were not found on the plots studied. In August, 1952, we made an attempt to obtain a fuller estimate of the number of tree speeies in a terra firme community in the state of Pará, in Brazil, by making a count on a plot of a larger size than used previously, namely, on 3.5 hectares. The results of this attempt are reported in the present article. aAmazonia atrees aÁrvore aAmazon1 aDOBZHANSKY, TH.1 aBLACK, G. A. tBotanical Gazettegv. 114, n. 4, p. 467-477, Jun. 1953.