Thanks a lot, Singh ji. On Tue, 27 Oct 2020 at 17:48, Gurcharan Singh <[email protected]> wrote:
> Dear friends, > Much of material in Indian Infloras has been placed under Typha angustata Bory > & Chaubard. As it turns out that T. angustata Bory & Chaubard is now > treated as synonym of T. domingensis Pers. Recently Suman Halder, P. Venu > and Y.V. Rao, 2014 (The distinct Typha angustifolia (Typhaceae) ignored in > Indian floras, Rheedea 24(1): 16-20 have concluded that some material under > T. angustata may belong to T. angustifolia, though not as prevalent as T. > domingensis (=T. angustata). It may thus be concluded: > 1. Material of T. angustata in India may belong to either T. domingensis > or T. angustifolia. > 2. T. domingensis is much more widely distributed than T. angustifolia in > India. > 3. Perhaps no city in India has so much abundance of Typha angustata as > Kashmir valley, and all major herbaria are full of specimens from Kashmir. > The above paper does not cite any specimen from Kashmir in distribution of > T. angustifolia, obviously all of it belongs to T. domingensis. > Here is the list of differences between the two species taken from > above paper as well as Flora of China. Unfortunately, however, most of > these differentiating characters are microscopic and may not be available > in photographs we have, but may help in future photography of specimens: > > T. angustifolia T. > domingensis > 1. Leaf sheaths auriculate at tip 1. Leaf sheaths taper > into lamina > 2. Upper surface of leaf with brown spots. 2. Brown spots absent > 3. Male part of spike ca 8 cm 3. Male part of > spike 7-30 cm > 4. Compound pedicels of female flowers 4. Compound pedicels of female > slender with brown streaks flowers dark > brown and stumpy > 5. Perigonial hairs of female flowers 5. Perigonial hairs of > female flowers > shorter and below stigma as equal to > stigma > 6. Colour of Female flower bracts 6. Colour of Female > flower bracts > dark brown > translucent > 7. Staminate bracts forked at apex 7. Staminate bracts > laciniate > 8. Anthers twisted after dehiscence 8. Anthers not twisted > after dehiscence > 9. Anther 1.3-1.8 mm long 9. Anther ca 1.4 mm > long > 10. Stigmas ca as broad as style 10. Stigmas broader than > styles > > I hope this helps. I am attaching above cited paper. > > > > > Dr. Gurcharan Singh > Retired Associate Professor > SGTB Khalsa College, University of Delhi, Delhi-110007 > Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018. > Mob: 9810359089 > https://www.gurcharanfamily.com/ > > -- > You received this message because you are subscribed to the Google Groups > "efloraofindia" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/indiantreepix/CAHiXKpVTR4HWSxK3Jh_6jJwd2vo2XrnsDNSW-BVe2VB8oQswEQ%40mail.gmail.com > <https://groups.google.com/d/msgid/indiantreepix/CAHiXKpVTR4HWSxK3Jh_6jJwd2vo2XrnsDNSW-BVe2VB8oQswEQ%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- With regards, J.M.Garg -- You received this message because you are subscribed to the Google Groups "efloraofindia" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/indiantreepix/CA%2BiuSFDY8Kb3Ag97CFNTsrYW_h2BErnrhYW%3DN8Eucnd9cd%2ByPQ%40mail.gmail.com.
