Riverside Hybrids

 
Passiflora racemosa clone 1 | Passiflora racemosa clone 2 | Passiflora racemosa clone 3 | Passiflora racemosa clone 4 | Passiflora racemosa 'Carioca'

Passiflora racemosa

Image © 2006 Owen Davies



 

Passiflora racemosa
(Passiflora)
Rio de Janeiro
Brazil
1817
Min 4°C 39°F
June-October

  'raceme'
n. kind of inflorescence with flowers borne on footstalks up a central stem.

Passiflora racemosa. In about 2002 Mark Cooper kindly sent me some wild collected seed (from Brazil?) from an unidentified red flowered Passiflora. Only a few seed came up and all appeared to be P. tarminiana. I did think it odd though as P. tarminiana is pink. I gave one very young seedling to Owen Davies believing it to be P. tarminiana.

I thought no more about it till in 2006 Owen tried to describe the flowers as red and how they were growing in an odd manner. I didn't believe him to be honest & asked him to take some pictures. The P. tarminiana was in fact Passiflora racemosa Clone 1 above!

Passiflora racemosa is a very variable species. It is a stunning plant which unusually for a passion flower produces racemes (chains of flowers with no leaves) with up to 30 flowers on them. Sometimes there are two flower buds at one joint so technically they may be pseudoracemes? Killip comments that leaves can be three lobed or entire with the colour of the flower varying from red to white. Also the series of three corona filaments are variably banded and coloured from white to predominantly reddish/purple.

Dr Les King in June 2007 observed the stamens on many P. racemosa clones are distributed asymmetrically in a similar but less exaggerated manner compared with bat pollinated Passiflora flowers such as that of P. mucronata. This and the slightly curved androgynophore (stalk in the middle of the flower) encourage entry to the flower from one side by pollinators which will get dusted with more pollen that if the flower was symmetrical. Interestingly P. pinnistipula shows the curved androgynophore but the anthers still appear symmetrical.

Note:-

  • Clone 1 was wild collected probably in about 2001.

  • Clone 2 was obtained from Dr John Vanderplank by Dr Les King in 2002.

  • clone 2 was self pollinated by Dr Les King to produce the pink Clone 3.

  • I am growing Clone 4 from Torsten Ulmer. It could be the same clone as Clone 2.

  • David Costen's pink selection P. racemosa 'Carioca' has entire leaves.

  • the clones show a range of corona filament colours.

  • all shown asymmetric stamens.