
The SciencesJanuary 1, 1966
Orchids
There are more than 20,000 species of them, comprising the largest family of plants. Not all of them bear the ornate flowers used for corsages, but their evolutionary adaptations are remarkably diverse

Orchids
There are more than 20,000 species of them, comprising the largest family of plants. Not all of them bear the ornate flowers used for corsages, but their evolutionary adaptations are remarkably diverse