Rubus id Kalatope al280411

[Alok Mahendroo]

Dear friends,
A prickly climber/creeper flowering in April

Location Kalatope, Chamba
Altitude 2100 mts
habit climber/creeper
Habitat wild
Height 1-2 mts

regards
Alok
--
Himalayan Village Education Trust
Village Khudgot,
P.O. Dalhousie
District Chamba
H.P. 176304, India
www.hive.interconnection.org
www.hivetrust.wordpress.com
www.forwildlife.wordpress.com

[Gurcharan Singh]

Resurfacing again for ID

-- 
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/ 

[Muthu Karthick]

Looks more like a Rubus sp. [Rosaceae]

--
Muthu Karthick, N
Care Earth Trust

#15, second main road,

Thillai ganga nagar,
Chennai - 600 061

Mob: 0091 96268 33911
www.careearthtrust.org

[Alok Mahendroo]

Thanks Muthu ji, that I had deduced... but have not been able to
identify further... do you know of any keys to rubus sp. We have few
more species here and one is beginning to flower now, I'll upload that
too in a few days
regards
Alok...

[Gurcharan Singh]

Alok ji

Here is the key for genus Rubus from Flora Simlensis

Flowers white

      Leaves simple, lobed.....................................................................................R. paniculatus Smith

      Leaves compound

           Lower surface of leaflets green, glabrous.....................................................R. macilentus Camb.

           Lower surface of leaflets gray- or white-tomentose 

                Stem and branches shaggy, with long tawny bristles...............................R. ellipticus Smith

                Stem and branches glabrous, covered with white bloom...........................R. biflorus

Flowers Pink, leaves compound

      Leaflets 3, rarely 5; calyx lobes long pointed; druplets pink................................R. niveus Wall

      Leaflets 5-11, calyx lobes acute; drupelets black..............................................R. lasiocarpus Smith

Rubus lasiocarpus Smith is now correctly known as R. niveus Thunb.

Rubus niveus Wall is now correctly known as R. pedunculosus D. Don

For your plant, the closest match is R. pedunculosus D. Don (syn: R. niveus Wall.; R. hypagyrus Edgew.) but be for look out for other closer species like R. hoffmeisterianus Kunth and Bouch (which is similar but upper leaflet largest and often 3-lobed, recurved prickles on rachis and young shoots); both have 3 leaflets, leaves white beneath, fruits orange to red and flowers pink.

 

-- 
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/ 

.

[Gurcharan Singh]

Alok ji

While hunting for Rubus, be on watch for: number of leaflets, palmate (arising from one point, like Ceiba) or pinnate (like rose), undersurface of leaf (get at least one photograph), prickles on stem and rachis/petiole, flower colour and diam, calyx lobes shape and length (do focus it) and colour of mature fruits. Luckily you will usually find all these on the same plant, some times late in the flowering season.

-- 
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/ 

[Alok Mahendroo]

Sir,
Does R. pedunculosus also have recurved prickles on rachis? What is the
difference between R. pedunculosus and R. hoffmeisterianus...??
regards
Alok

On Fri, 2011-05-27 at 09:45 +0530, Gurcharan Singh wrote:
> R. pedunculosus

[Gurcharan Singh]

Alok ji

One the terminal leaflet of hoffmeisterianus is much larger than others and often 3-lobed, not 3-lobed in R. pedunculosus

Calyx lobes of hoffmeisterianus are ovate and acute, in pedunculosus calyx lobes have long slender apices

leaflets are with blunt teeth in foffmeisterianus, doubly sharply toothed in pedunculosus

Leaves are densely white-wooly (matted wooly hairs) in hoffmeisterianus, white-hoary (white greyish white hairs)

-- 
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/ 

[Alok Mahendroo]

Thank you very much Gurcharan ji for this excellent differentiation..!!
regards
Alok

[JM Garg]

To me appears more closer to images at Rubus hoffmeisterianus Kunth & C. D. Bouché, C. S. Kunth  rather than those at Rubus pedunculosus