How are Raunkiær's plant life forms viewed today?
Oreotrephes, it all depends on the needs. Reproductive schemas don't exclude shape schemas. There has been, however, a shift to cladistics in classification, which means to give scientific names ONLY to monophyletic groups, i.e. groups that include all the descendants of a single ancestor - and only its descendants. But we still use tree/shrub distinction and epiphytes, for instance, but that's to describe the ecology of species, helping identify them, not to classify them on these grounds alone.