• Purple blobs drop from fruit trees that produce dark-colored fruit.Jupiterimages/Photos.com/Getty Images
  
  Purple fruits are nutrient-rich and a source for vitamin C, fiber and flavonoids, among other healthful properties. While purple blobs may occasionally result from cutting into over-ripe, dark-colored fruits, produce at or just past its prime contains disease-fighting antioxidants and other healthful compounds. Cut over-ripe, purple fruit into chunks and simmer with a bit of water to make a nutrient-rich tonic or blend with ice and frozen yogurt to make a healthy smoothie.
  
  

Acai Tree

• The tall, slender acai (Euterpe oleracea) is a fruit tree and a source of fallen purple blobs. Acai produces berries in clusters borne on leafless tree stems; each stem usually carries four to eight berry bunches. Young acai berries are green at first then develop a dark purple hue as they age. Berries reach 1 to 2 cm in diameter. Each cluster of acai berries weighs up to 13 pounds. Purple blobs in the form of acai berries occur most heavily from July to December. Acai is native to tropical America and grows prevalently throughout the Amazon. The dark berries of this rainforest palm tree are pleasing to birds and rodents.
  
  

Pomegranate Tree

• Some cultivars of the pomegranate (Punica granatum L.) tree produce large, dark purple-red fruit, such as the "Wonderful" and "Dholka" varieties. The pomegranate's native range stretches from Iran to the Himalayas in northern India, and they are widespread throughout the Mediterranean region of Asia, Africa and Europe. Pomegranate trees prefer hot, inland habitats. This flowering tree bears ornate blossoms and dark-reddish-purple fruit with a tangy flavor. The fuit is round and reaches a width ranging from 2 1/2 to 5 inches. The rind is tough and leathery and dark pink or purplish-red in color. Purple blobs result from the fleshy, juicy pulp from fallen fruit.
  
  

Star Apple Tree

• Purple blobs may take the form of fallen fruit from the star apple tree (Chrysophyllum cainito L.). These fruits have a rubbery texture, are oblate and are either red-purple, dark purple or pale green in color. Purple varieties have glossy, soft and leathery skin and a dark-purple inner rind about 1/4 to 1/2 inch thick. The fruit's pulp is soft and milky and surrounds 6 to 11 gelatinous seed cells. Star apple attributes its common name to its central core, which when cut through transversely, resembles an asterisk or many-pointed star.