Summary
Crossability values were calculated for (a) eight individual tree crosses betweenPinus elliottii Engelm. var.elliottii L. & D. andP. caribaea Mor. var.caribaea B. & G., (b) ten crosses betweenP. caribaea var.caribaea andP. caribaea var.hondurensis B. & G., and (c) twelve crosses betweenP. elliottii var.elliottii andP. caribaea var.hondurensis. Individual trees showed differences in ability to hybridize. Despite wide variation for each combination, the compatibility of the various combinations could be defined. It was high for (a), moderate for (b) and poor for (c). These results indicate the need for taxonomic review of theP. elliottii — P. caribaea species complex and suggest that hybridization within the complex might have economic value in Queensland forests.
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Slee, M.U. Crossability values within the slash-caribbeanPinus species complex. Euphytica 19, 184–189 (1970). https://doi.org/10.1007/BF01902943
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DOI: https://doi.org/10.1007/BF01902943