| As is now regarded as typical of bat-pollinated flowers, the corolla is sturdy and the nectary disk is large. |
| The three-lobed labellum is attached to the column by a column foot, where the nectary is located. |
| Major morphological differences in the family are found in the type of inflorescences, and the shape and position of the nectary bracts. |
| The nectary is supplied by a single vascular bundle comprising xylem and phloem. |
| At the anthesis, a nectary is present at the base of the ovary and trichomes can be observed on the ovary epidermis. |
| Its nectary tube is five inches in length, and as slender as a knitting-needle. |
