Acanthaceae Fortnight: Dicliptera bupleuroides from Nandini J & K-GSMAR12/13

[Gurcharan Singh]

Dicliptera bupleuroides Nees, Pl. asiat. rar. 3:111. 1832

syn: Dicliptera buergeriana Miq.; Dicliptera cardiocarpa Nees; Dicliptera roxburghii T.Anderson; Dicliptera roxburghiana var. bupleuroides (Nees) C.B. Clarke; Dicliptera roxburghiana auct. (non Nees)

hairy diffuse herb with ovate-lanceolate about 5 cm long leaves, flowers pink spotted with purple spots. Common along pathways in Manali and Kullu. Photographed from Mandi in October, 2009.

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://www.gurcharanfamily.com/ 
http://people.du.ac.in/~singhg45/

[J.M. Garg]

Dicliptera chinensis as per images and details herein. Looks different from Dicliptera bupleuroides as per images and details herein.

Differences between the two species are better appreciated as per FoC illustration and FoP illustration

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[J.M. Garg]

On further examination and discussions at thread: Dicliptera bupleuroides Nees (accepted name) ??? , I feel it should be Dicliptera riparia Nees (syn: Dicliptera roxburghiana var. riparia (Nees) Benoist) as per distribution, specimens and references herein.

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With regards,
J.M.Garg

[Gurcharan Singh]

All three similar species are listed in FBI (under names D. riparia, D. roxburghiana and D. roxburghiana var. bupleuroides): Here is comparison of accepted names

D. riparia Nees is distributed in Pegu  and Tenassarim (Myanmar),FBI according to Flora China Nepal, Myanmar to Yunan: Lesves ovate, obtuse often emarginate bracts, bracteoles 6 mm, linear.

D. chinensis (L.) Juss. (Syn: D. roxburghiana Nees): Leaves ovate-elliptic, base cuneate to attenuate, decurrent on petiole, outer bracteoles 5-13 mm x 3-8 mm , less than twice as long as broad, corolla 10-12 mm long; Throughout India

D. bupleuroides Nees (Syn: D. roxburghiana var. bupleuroides (Nees) Clarke): leaves ovate, base cuneate; outer bracteoles 5-7 mm long, more than twice as long as broad; corolla 5 mm long.; Throughout India

When looking for specimens from Western Himalayas we have to be vigilant about size of corolla and relative length breadth ratio of outer bracteoles.

This is clearly D. bupleuroides, observe smaller corolla and shape of corolla lobes.

[J.M. Garg]

This is D.chinensis as per details at Dicliptera roxburghiana and Dicliptera roxburghiana var. bupleuroides

To view this discussion on the web, visit https://groups.google.com/d/msgid/indiantreepix/cb83ee49-313b-4ad1-bb80-65ee876daf30n%40googlegroups.com.

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With regards,
J.M.Garg