Marcus Schneck

INTRODUCTION The migrations of geese and other waterfowl have been harbingers of the changing seasons for people throughout history. T "Míe hunter cupped a hand to his forehead, shielding his eyes from the bright sun. He gazed in awe as geese beyond his counting passed overhead, following...

Introduction There are over 2,000 members of the Cactaceae, nearly all originating from North and South America, although a few belonging to the genus Rhipsalis are native to Africa. Several American species have been introduced to other continents where they have become naturalized. These...