Top Tropicals <http://toptropicals.com/html/toptropicals/articles/vines/mandevilla.htm> give the differences as below:
*Mandevilla* ‘*Alice du Pont’ *is a woody, twining evergreen vine. It grows to a height of 20 feet but is much shorter when grown in a container. The leaves are dark green, glossy, oval and 3 to 8 inches long. Clusters of pure pink, flared, trumpet-shaped, 2- to 4- inch flowers appear among the leaves, spring through fall. Even very small plants in 4-inch pots will bloom. This cultivar grows well in hanging baskets. Pinch off tips of new stems to induce dense growth. *Mandevilla* ‘*Laxa’* or Chilean jasmine (although it is native to Argentina) is a climbing, woody, deciduous vine. It grows to 15 feet. Leaves are opposite, oblong or heart-shaped at the base. They are 2 to 6 inches long, thin and dark green with gray-green undersides. Clustered summer flowers are white, 2 inches across and trumpet-shaped with a powerful gardenia-like fragrance. Provide rich soil. If the plant becomes badly tangled, cut it to the ground in winter. It will bloom on the new growth. Roots are hardy to about 5 ° F. *Mandevilla* ‘*Splendens’* is an evergreen similar to ‘Alice du Pont’, with the same bloom period. The leaves are narrow, pointed and 3 to 8 inches long. The trumpet-shaped flowers are 2 to 4 inches across, pale pink when they open, with rose-pink eyes. As the flowers age, their color deepens to rose. The stems of M. ‘Splendens’ reach 10 to 15 feet in length. *CULTIVARS* ‘*Red Riding Hood’ *has deep red flowers. ‘*Summer Snow’ *has sparkling white 3- to 4- inch flowers against dark glossy foliage. ‘*Yellow’* has wide, bright yellow flowers. They are lower growing and shrubbier than the species and superb in hanging baskets. *It will be better if we follow this for our identifications. But instead of species, it talks of cultivars.* On 2 May 2015 at 21:23, J.M. Garg <[email protected]> wrote: > Dear members, > Mandevilla splendens at FOI > <http://www.flowersofindia.net/catalog/slides/Mandevilla.html> seems > confusing. There is no other Mandevilla species at FOI. I could not find > any proper link for 'Mandevilla splendens + India' search. > > As per efi Mandevilla > <https://sites.google.com/site/efloraofindia/species/a---l/a/apocynaceae/mandevilla> > page > only details of *Mandevilla laxa &* *Mandevilla sanderi* > <https://sites.google.com/site/efloraofindia/species/a---l/a/apocynaceae/mandevilla/mandevilla-sanderi> > are > available. > As per efi page details of Dipladenia × amabilis > <https://sites.google.com/site/efloraofindia/species/a---l/a/apocynaceae/dipladenia/dipladenia-amabilis> > (syn. > *Mandevilla* *×* *amabilis* (Backh.) Dress > <http://www.theplantlist.org/tpl/record/kew-119210>) are available. > > Dave's Garden <http://davesgarden.com/guides/pf/go/1711/> gives *Mandevilla > splendens *with *Mandevilla sanderi* > <https://sites.google.com/site/efloraofindia/species/a---l/a/apocynaceae/mandevilla/mandevilla-sanderi> > as a syn. > > Flkoridata <http://www.floridata.com/ref/M/mandev.cfm> says: > "This plant was formerly known as *Dipladenia splendens* and it is > sometimes sold under that name. This name is now considered a synonym > <http://www.floridata.com/tracks/misc/plant_names.cfm> and is no longer > correct. A popular hybrid often offered by retailers is *Mandevilla* x > *amoena* 'Alice du Pont'. ....." > > Thus I doubt the identity of Mandevilla splendens at FOI > <http://www.flowersofindia.net/catalog/slides/Mandevilla.html> > -- > With regards, > J.M.Garg > > 'Creating awareness of Indian Flora & Fauna' > <http://en.wikipedia.org/wiki/User:Jmgarg1> > The whole world uses my Image Resource > <http://commons.wikimedia.org/wiki/Category:J.M.Garg> of more than a > thousand species & eight thousand images of Birds, Butterflies, Plants etc. > (arranged alphabetically & place-wise). You can also use them for free as > per Creative Commons license attached with each image. > > For identification, learning, discussion & documentation of Indian Flora, > please visit/ join our Efloraofindia Google e-group > <https://groups.google.com/forum/#!forum/indiantreepix> (largest in the > world- more than 2400 members & 2,00,000 messages on 9.9.14) or Efloraofindia > website <https://sites.google.com/site/efloraofindia/> (with a species > database of more than 10,000 species & 2,00,000 images). Winner of > Wipro-NFS Sparrow Awards 2014 for efloraofindia > <https://sites.google.com/site/efloraofindia/award-for-efloraofindia>. > > Also author of 'A Photoguide to the Birds of Kolkata & Common Birds of > India'. > -- With regards, J.M.Garg 'Creating awareness of Indian Flora & Fauna' <http://en.wikipedia.org/wiki/User:Jmgarg1> The whole world uses my Image Resource <http://commons.wikimedia.org/wiki/Category:J.M.Garg> of more than a thousand species & eight thousand images of Birds, Butterflies, Plants etc. (arranged alphabetically & place-wise). You can also use them for free as per Creative Commons license attached with each image. For identification, learning, discussion & documentation of Indian Flora, please visit/ join our Efloraofindia Google e-group <https://groups.google.com/forum/#!forum/indiantreepix> (largest in the world- more than 2400 members & 2,00,000 messages on 9.9.14) or Efloraofindia website <https://sites.google.com/site/efloraofindia/> (with a species database of more than 10,000 species & 2,00,000 images). Winner of Wipro-NFS Sparrow Awards 2014 for efloraofindia <https://sites.google.com/site/efloraofindia/award-for-efloraofindia>. Also author of 'A Photoguide to the Birds of Kolkata & Common Birds of India'. -- 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 post to this group, send an email to [email protected]. Visit this group at http://groups.google.com/group/indiantreepix. 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