Key points are not available for this paper at this time.
TRANSITION SERIES'probably is not.Clade-ol paia-ilie genera correspond mil uilh hiogeogiaphie Parasitic angiospemis arc found in 16 families encountered.The group with the greatest range in and live in divers.' habitats, ranging horn tropical parasitic specialization is found within the Scroforests to arctic islands (Musselman Nickrent et al., asites would enable us to better understand the an-1998).The evolution of parasitism can best be atomical, physiological, and genetic changes that studied in a group where near relatives are known, occur during the evolution ,.| parasitism and the and different degrees of parasitic specialization are loss of photosynthetic ability. 1
Young et al. (1999) studied this question.