After seeing C. radicans from Kashmir I was confused about the identity of Campsis commonly growing in Delhi and earlier identified by me as C. radicans and also depicted on Flowers of India website as C. radicans. The typical C. radicans from Kashmir has much longer corolla tube (6-8 cm long as against 4-5 in C. grandiflora) and shallowly parted calyx tube. The plants from Delhi though with slightly smaller flowers have shorter corolla and deeply parted calyx, which leads me to think that my Campsis from Delhi may be smaller form of C. grandiflora and not C. radicans.
Kindly give your critical views on this.
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: 9810359089http://people.du.ac.in/~singhg45/