Corolla salver-shaped, the tube long, square, throat bare, limb divided into 5 obovate parts, ending in stylets.
"The Medicinal Plants of the Philippines"
T. H. Pardo de Tavera
The T. cucumerina, L., is less common, bears a spindle-shaped or obovate fruit, is hairy and lacks ribs.
"The Medicinal Plants of the Philippines"
T. H. Pardo de Tavera
When arrived at their full growth, they are somewhat obovate, and produce four spicules, which at length are surmounted each with a globose spore.
"Fungi: Their Nature and Uses"
Mordecai Cubitt Cooke