Follow-up Tracking and Breeding Verification on the Mystery of Cycd. Taiwan Gold and Cycd. Jumbo Puff

Reflecting on our 2013 investigative report and DNA testing data series, "Cycnodes Jumbo Puff or Cycnodes Taiwan Gold?", we noted a lingering regret: although the Royal Horticultural Society (RHS) acknowledged the homologous relationship between Cycnodes (hereinafter Cycd.) Taiwan Gold and Cycd. Jumbo Puff based on molecular data, they chose not to alter the original registration due to administrative policies. At that time, we concluded with a resolve—to recreate the cross using the exact parents listed in the registration to decisively confirm this historical puzzle.

After years of patient cultivation, we officially remade the cross using the registered parentage: Cycnoches (hereinafter Cyc.) chlorochilon (Note: most domestic plants used under this name were actually Cyc. warscewiczii; however, for precise verification, we sourced authentic Cyc. chlorochilon) crossed with Cycd. Jumbo Jewel (= Cyc. haagii × Mormodes badia). This batch has now finally bloomed!

By examining the plant habits, flower coloration, and petal texture of these first blooms, we can now physically compare the "authentic Cycd. Taiwan Gold" (hereinafter Cycd. Original Taiwan Gold) against the market's Cycd. Jumbo Puff (the tetraploid mutants frequently mislabeled as Taiwan Gold, such as 'Orchis' or our nursery's 'Jumbo Canary'):

1. Bloodline and Phenotype Revealed: Cycd. Original Taiwan Gold carries the genetic lineage of Cyc. haagii. Its overall floral structure and color display distinct biological and visible differences from Cycd. Jumbo Puff (and its tetraploid mutations), which derives solely from Cyc. warscewiczii × Morm. badia. Cycd. Original Taiwan Gold essentially presents itself as an enlarged version of Cycd. Jumbo Jewel, proving that introducing Cyc. chlorochilon (or Cyc. warscewiczii) reliably yields a significant increase in flower size. Furthermore, the sepals show a distinct curvature clearly influenced by this parent (a characteristic curvature that would not occur if warscewiczii were used).

2. A Perfect Historical Closure: Years ago, our Amplified Fragment Length Polymorphism (AFLP) DNA marker data highlighted the genetic divergence between the two lines. Today, the physical blooming of the authentic parent cross offers concrete biological proof confirming our original conclusion, bringing a decade-long breeding debate to a definitive end.

Comparison between the newly bloomed Cycd. Original Taiwan Gold (Left) and its parent Cycd. Jumbo Jewel (Right)

Flower size of Cycd. Jumbo Jewel: approximately 4.1 cm

Flower size of Cycd. Original Taiwan Gold: approximately 6.1 cm

RHS registration query result for Cycd. Taiwan Gold (Dated Feb 6, 2012)

RHS registration query result for Cycd. Taiwan Gold (Dated Oct 30, 2012)

Conclusion: Orchid hybridization is a long path that must withstand rigorous scientific scrutiny. We remain committed to documenting the truth—not just to correct the record, but to protect the purity and integrity of Catasetinae breeding lines. We add this update to share this milestone with growers and enthusiasts worldwide.