Ericaceae (incl. Vacciniaceae) Fortnight: Rhododendron anthopogon from above Tungnath, Uttarakhand pl validate-GSAPR14

[Gurcharan Singh]

Rhododendron anthopogon D. Don, a dwarf alpine shrub photographed above Tungnath, Uttarakhand at altitude of approx. 3600 m. Pl. validate.

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/

[Subhasis Panda]

Sirji, these 3 photos are correctly identified as Rhododendron athopogon D. Don

Pandaji

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[Gurcharan Singh]

Thanks a lot Panda ji. I was very tentative about my identification.

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]

R. anthopogon ssp. hypenanthum as per Rhododendron species in Sikkim

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J.M.Garg

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[J.M. Garg]

As per Flora of Bhutan:

subsp. anthopogon; R. haemonium Balfour f. & Cooper, R. anthopogon D. Don var. haemonium (Balfour f. & Cooper) Cowan & Davidian.
Branches without persistent leaf bud scales; corolla (in Bhutan) usually pink or pinkish white sometimes (in Darjeeling and Sikkim) lemon-yellow.
subsp. hypenanthum (Balfour f.) Cullen; R. hypenanthum Balfour f.
Differs from subsp. anrhopogon in its branchlets which bear persistent lanceolate leaf bud scales at nodes; corolla creamy-white or yellow, sometimes (only in Bhutan) pink.

As the difference are difficult to judge from these images and Flora of Pakistan gives Rhododendron anthopogon D. Don as syn. of Rhododendron hypenanthum Balf. f., I am keeping it under Rhododendron anthopogon only for the time being.

[Gurcharan Singh]

Thanks Garg ji