New Boraginales from Tropical America 8. Two New Species of Tournefortia (Heliotropiaceae) from Costa Rica
Tournefortia albifolia J. S. Mill. And T. longipedicellata J. S. Mill. are described as new from Costa Rica, bringing the total number of Tournefortia L. species known from Costa Rica to 16. They are described, their affinities are discussed, information is provided to allow them to be separated from the other species with which they may be confused, and their conservation status is determined.