Monstera 'Viet Truong Sa'
Accepted:
No
Established:
No
Nomenclatural Notes:
Published in:
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Released Year:
2024
Propagated:
Yes
Cultivar Type:
Sport
Originator:
Ngoc Hung Pham & Tuan Anh Le
Namer:
Ngoc Hung Pham & Tuan Anh Le
Seed Parent:
Pollen Parent:
Base Species or Cultivar:
Monstera deliciosa
Cultivar Origin:
The claimed plant originated as a Ethyl methanesulfonate-induced, whole-plant mutation of an unnamed Monstera deliciosa plant that typified the species (not patented). In the spring of 2019, meristematic tissue culture propagation of said Monstera deliciosa plant was initiated at a plant tissue culture laboratory in Hanoi, Vietnam. After five months in culture, the plant tissue was transferred to an agar medium to induce multiplication of meristematic plant tissue. After one additional month, the plant tissue was treated with Ethyl- methanesulfonate in order to induce mutation. Once these plant tissue cultures had developed juvenile leaf shoots and calluses, they were transferred to a soilless growing media and acclimatized in a greenhouse. This process resulted in approximately 5000 rooted young plants. Said plants were grown to the four- true-leaf stage, at which point any plantlets exhibiting variation in leaf color, variation in leaf shape, or leaf variegation were isolated. In February of 2020, after evaluating said isolated plants, one plant was observed to exhibit unique foliage variegation relative to all other candidate plants resulting from the induced-mutation. The plant was isolated and further evaluated to confirm the characteristics first observed. In January of 2022, it was determined that the unique foliage variegation and coloration of the claimed plant would prove favorable for commercial marketability.
Name Origin:
'Viet Truong Sa' stands for a archipelago belong to Viet Nam, named Truong Sa
Growth Habit:
Monopodial evergreen perennial; plants will eventually develop a stem with age.
Leaf Blade:
Foliage Arrangement – Alternate to spiraled.
Lamina Shape – Cordate; laminas become progressively pinnatifid and fenestrated with age.
Lamina Apex – Broadly acuminate.
Lamina Base – Cordate.
Lamina Aspect – Convex; laminar lobes are pendulous.
Lamina Attitude – Outward to somewhat pendulous, at an approximate angle of 90 degrees to the petiole.
Lamina Dimensions – 26.5 cm long and 21.5 cm wide.
Lamina Margin – Juvenile foliar margins are entire with light, coarse undulation. Mature foliar margins are incised, lobed, and fenestrated.
Lamina Texture and luster, adaxial surface – Smooth, glabrous, and slightly to moderately glossy.
Lamina Texture and luster, abaxial surface – Smooth, glabrous, and slightly glossy to matte.
Lamina Juvenile color, adaxial surface – Two distinct colorations may be present, each coloration being dependent on ambient temperature at the time of leaf emergence, and each with the same variegation pattern. When foliage emerges at ambient temperatures below or near 30 degrees Celsius, the foliage is dark green, nearest to RHS 139A, and irregularly flecked and blotched with a combination of white, RHS 155A, and green-white, RHS 157A, though predominantly white, RHS 155A. Additionally, these areas of flecking and blotching are themselves flecked with dark green, RHS 139A. The coloration of this foliage will not fade if subjected to higher ambient temperatures once it has emerged. When foliage emerges at ambient temperatures above or near 35 degrees Celsius, the foliage is a lighter shade of green, nearest to in between RHS 141A and 143A, and irregularly flecked and blotched with yellow-green, RHS 150B. These areas of flecking and blotching are themselves flecked with yellow-green, nearest to RHS 141B. The coloration of this foliage will not change if subjected to lower ambient temperatures once it has emerged.
Lamina Juvenile color, abaxial surface – Two distinct colorations may be present, each coloration being dependent on ambient temperature at the time of leaf emergence, and each with the same variegation pattern. When foliage emerges at ambient temperatures below or near 30 degrees Celsius, the foliage is yellow-green, nearest to a mixture of RHS 144A and 144B, and irregularly flecked and blotched with a combination of green-white, RHS 157B, and yellow-green, RHS 145D, though predominantly green-white, RHS 157B. Additionally, these areas of flecking and blotching are themselves flecked with yellow-green, nearest to a mixture of RHS 144A and 144B. The coloration of this foliage will not fade if subjected to higher ambient temperatures once it has emerged. When foliage emerges at ambient temperatures above or near 35 degrees Celsius, the foliage is yellow-green, nearest to RHS 144B, and irregularly flecked and blotched with yellow-green, RHS 145C. These areas of flecking and blotching are themselves flecked with yellow-green, nearest to RHS 144B. The coloration of this foliage will not change if subjected to lower ambient temperatures once it has emerged.
Lamina Mature color, adaxial surface – Two distinct colorations may be present, each coloration being dependent on ambient temperature during foliage maturation, and each with the same variegation pattern. When foliage emerges at ambient temperatures below or near 30 degrees Celsius, the foliage is dark green, nearest to RHS 139A, and irregularly flecked and blotched with a combination of white, RHS 155A, and green-white, RHS 157A, though predominantly white, RHS 155A. Additionally, these areas of flecking and blotching are themselves flecked with dark green, RHS 139A. The coloration of this foliage will not fade if subjected to higher ambient temperatures once it has emerged. When foliage emerges at ambient temperatures above or near 35 degrees Celsius, the foliage is a lighter shade of green, nearest to in between RHS 141A and 143A, and irregularly flecked and blotched with yellow-green, RHS 150B. These areas of flecking and blotching are themselves flecked with yellow-green, nearest to RHS 141B. The coloration of this foliage will not change if subjected to lower ambient temperatures once it has emerged.
Lamina Mature color, abaxial surface – Two distinct colorations may be present, each coloration being dependent on ambient temperature during foliage maturation, and each with the same variegation pattern. When foliage matures at ambient temperatures below or near 30 degrees Celsius, the foliage is yellow-green, nearest to a mixture of RHS 144A and 144B, and irregularly flecked and blotched with a combination of green-white, RHS 157B, and yellow-green, RHS 145D, though predominantly green-white, RHS 157B. Additionally, these areas of flecking and blotching are themselves flecked with yellow-green, nearest to a mixture of RHS 144A and 144B. The coloration of this foliage will not fade if subjected to higher ambient temperatures. When foliage matures at ambient temperatures above or near 35 degrees Celsius, the foliage is yellow-green, nearest to RHS 144B, and irregularly flecked and blotched with yellow-green, RHS 145C. These areas of flecking and blotching are themselves flecked with yellow-green, nearest to RHS 144B. The coloration of this foliage will not change if subjected to lower ambient temperatures.
Bloom and Fruit:
Monstera deliciosa typically produces a spathe and spadix inflorescence, but no flowering of the claimed plant has been observed to date.
Distinguishing Characteristics:
Plant height - Viet Truong Sa is taller than Monstera deliciosa 'Thai Constellation
Petiole coloration - Varying from yellow-green with green-yellow irregular longitudinal stripes to green-yellow with yellow-green irregular longitudinal stripes, which is different from Monstera deliciosa 'Thai Constellation with green or green and white variegated.
Lamina shape - Cordate, with a length-to-width ratio of 1.2 to 1.5, which different from Monstera deliciosa 'Thai Constellation with broadly cordate, with a length-to-width ratio of 1.0 to 1.2
Degree of leaf incisions - Viet Truong Sa's leaf incisions were more deeply incised than ‘Thai Constellation’
Expression of the foliar color patterns - Two distinct colorations may be present, each coloration being dependent on light exposure at the time of leaf emergence, and each with the same variegation pattern: dark green and irregularly flecked and blotched with near-white when grown under low light; and, a lighter shade of green that is irregularly flecked and blotched with a light yellow-green, nearer to yellow. The expression differs from Thai Constellation foliar color patterns with mid to dark green with white or pale-yellow flecks and blotches.