That means I.scrabida and I edgeworthii are syn of I.tricornis, is it ?

Thank you.

Saroj Kasaju


On Wed, Feb 19, 2020 at 11:53 AM Ashutosh Sharma <
ashutoshsharma1...@gmail.com> wrote:

> Respected members,
>
> I am making this post to clear differences between Impatiens tricornis
> Lindl.(Synonyms - I. scabrida  [sensu Hara (1979) and  Akiyama  et al.
> (1991, 1992)]) and Impatiens edgeworthii Hook. f.
>
> The darker yellow color form of Impatiens tricornis can be/is confused
> with Impatiens edgeworthii because of near similar yellow color but the key
> differences between the two species are -
> 1) In I. edgeworthii upper lobes of lateral united petals are prolonged
> and obliquely upwards while in I. tricornis these are much broader and
> never curves upward.
> 2) In I. edgeworthii lower sepal is infundibuliform, gradually narrowed
> into a long recurved spur while in I.tricornis it is  bucciniform to
> funnel-shaped and abruptly constricted into the spur.
> 3) The flower of I. edgeworthii is streaked red in the throat including
> upper lobe and half lower lobe of lateral united petal while in I.
> tricornis it is never streaked red though some rusty spots occur in the
> throat.
> 4) I. edgeworthii is glabrous including its capsules while I.tricornis is
> much hairy (pubescent) in nature though in lower altitude its less hairy
> form with much white flower also occurs but capsule remains puberulent in
> that also.
> Please see the attached images for clearing differences ...
>
> Note - Most(not all) of the Impatiens scabrida DC. that we know earlier is
> actually Impatiens tricornis Lindl. characterised by its bucciniform  to
> funnel-shaped lower sepal abruptly  constricted  into  the  spur while in
> true I. scabrida DC. lower sepal is navicular and tapers into a spur.
>
>
> Best regards
> Ashutosh Sharma
>
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