PT - JOURNAL ARTICLE AU - Santamour, Frank S. AU - McArdle, Alice Jacot TI - Checklists of Cultivars of Linden <em>(Tilia)</em> Species AID - 10.48044/jauf.1985.036 DP - 1985 May 01 TA - Arboriculture &amp; Urban Forestry (AUF) PG - 157--164 VI - 11 IP - 5 4099 - http://auf.isa-arbor.com/content/11/5/157.short 4100 - http://auf.isa-arbor.com/content/11/5/157.full SO - JOA1985 May 01; 11 AB - The difficulties of taxonomy in Tilia are many and varied. Cultivars of Tilia are described and discussed under the European species T. cordata, T. platyphyllos, and T. tomen-tosa, as well as the only United States species recognized, T. americana. The hybrids T. X europaea (T. cordata X T. platyphyllos) and T. X flavescens (T. americana X T. cordata) are also recognized as having valid cultivars. Several cultivars of doubtful hybrid origin are listed under the species they most resemble while some are grouped under “other hybrids.”