Kindly have a re-look at this upload by Shrikant ji
There seems to be a lot of confusion on the net regarding species of Momordica, often referred to as teasel gourd (though this name actually belongs to another cucurbit Cucumis dipdaceus which we dug out from our older posts). It seems M. dioica, M. cochinchinensis and M. subangulata subsp. renigera are much confused, although they are quite distinct in flowers and fruits. All three share a large bract at the base of flower (tip of peduncle).and male and female flowers on different plants.
Based on flower the three can be differentiated in that flowers of dioica are yellow, without dark spots (nectaries) at the base of corolla, whereas remaining two have distinct dark dots at the base of pale yellow to nearly white corolla. The corolla lobes of M. cochinchinensis are pointed at tip, they are obtuse or rounded at tip.
The fruits of dioica and M. subangulata are narrowed distinctly towards tip, whereas they are rounded at ends in M. cochinchinensis, in which the spines are not that dense, fruit larger mostly longer than 8 cm, turning yellow and finally red. In M. dioica fruits are smaller, usually shorter than 6 cm densely covered with longer spines. In M. subangulata there are two subspecies, subangulata with longitudinal ridges, no spines, surface totally smooth, and subsp. renigera with tubercles present and in longitudinal rows, surface more or less spinescent if ridges are present.
I have feeling that flower uploaded by Shrikant ji belongs to M. subangulata. Please comment.
Dr. Gurcharan Singh
Retired Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Phone: 011-25518297 Mob: 9810359089