Thanks Sir for so detailed information
On Fri, Sep 2, 2011 at 12:38 PM, Gurcharan Singh <singh...@gmail.com> wrote: > *Campsis* *×* *tagliabuana* (Vis.) Rehder *Syn: Tecoma* *×* *tagliabuana* > Vis. > > > -- > > 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 > http://people.du.ac.in/~singhg45/ > > On Fri, Sep 2, 2011 at 12:35 PM, Gurcharan Singh <singh...@gmail.com>wrote: > >> Genus Campsis has been confusing me a lot for quite some time. >> Traditionally two species of this genus are recognized as common garden >> trumpet creepers: >> >> *Campsis grandiflora*: leaflets 7-9; glabrous beneath; 4-7 cm long, paler >> green; calyx 5-lobed to middle; flowers orange to scarlet, corolla tube >> nearly one and half times as long as calyx, limb nearly 5-6 cm across; >> capsule 10-15 cm long, obtuse at apex, without beak. >> >> *Campsis radicans*: leaflets 9-11, pubescent beneath especially along >> midreib and main veins, dark green above; calyx shortly 5-lobed, lobes less >> than 1/3 the tube; flowers orange with scarlet limb, 2-3 times as long as >> calyx, usually less than 4 cm across; capsule cylindric-oblong, 7-12 cm >> long, keeled along sutures, beaked at apex. >> >> *Campsis x tagliabuana*: leaflets 7-11 (-13), glabrous beneath; calyx >> parted up to middle; flowers orange to scarlet; corolla tube 2-3 times >> longer than calyx, limb 5-8 cm across; sterile flowers fall off when mature, >> fruits not produced. >> >> >> I have been following the specimens of Campsis in Delhi, Kashmir, >> California and other places and frankly have not been able to locate a true >> sample of C. gandiflora. Most of the samples found in Kashmir and Delhi >> which look like C. grandiflora do not bear fruits, flowers fall off when >> mature and number of leaflets varry from 7-11 (-13). This sterile hybrid is >> actually C. X tagliabuana, a hybrid between C. radicans and C. grandiflora. >> Both specimens at at FOI (C. radicans as well as C. grandiflora) i think >> belong to this hybrid species, which is propagated by cuttings. >> >> Uploading C. x tagliabuana from Kashmir, very commonly growing in gardens >> and private houses. This hybrid species has a number of cultivars. This one >> from Kashmir is 'Madam Galen' >> >> >> -- >> 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 >> http://people.du.ac.in/~singhg45/ >> >> > > > -- Regards Dr Balkar Singh Head, Deptt. of Botany and Biotechnology Arya P G College, Panipat Haryana-132103 09416262964
