Overview
The cultivar epithet 'Sanderiana' is applied in the horticultural trade to a selected, patterned-leaved form of Goeppertia ornata (Linden) Borchs. & S.Suárez, a species in the family Marantaceae [1]. Goeppertia Nees is the accepted genus name for the largest genus in Marantaceae, encompassing an estimated 260 species, the great majority of which were transferred from Calathea G.Mey. by Borchsenius, Suárez and Prince in 2012 after molecular phylogenetic analysis demonstrated that Calathea as previously circumscribed was polyphyletic [1].
The species history begins with the basionym Maranta ornata Linden ex Lem., and J.G. Körnicke published the combination Calathea ornata (Linden) Körn. in Gartenflora 7: 87 in 1858 [2]. Plants of the World Online records Calathea ornata (Linden) Körn. as a synonym of the accepted name, and records the native range of the species as Colombia and Venezuela [2]. The registry carries the basionym authority as Linden; Plants of the World Online and IPNI record it as Lem. (Lemaire) [4][5]. This discrepancy has not been resolved against a primary record and is flagged for human review.
Harold Kennedy, writing in Acta Horticulturae 413 in 1994, placed G. ornata and its close relatives in the 'Ornata group', and documented that several names now treated as varieties or cultivar epithets, including 'Sanderiana', were originally described as distinct species before being reduced to infraspecific rank on account of the similarity of their juvenile foliage [3].
Names and Name Classes
Registered epithet: The cultivar epithet is 'Sanderiana'. No formal submission to any registration body has been documented for this epithet, and no registration number or registration date exists. The registry name record for 'Sanderiana' is maintained as nomenclatural evidence of trade use and is not verified against a primary registration document [3].
Trade designation: No trade designation separate from the cultivar epithet has been located in any primary source. The plant is listed in the trade under the combination Calathea ornata 'Sanderiana', a formulation that is not accepted under current botanical nomenclature because Calathea ornata is a synonym of Goeppertia ornata [1][2]. No trademark or separate marketing name has been documented.
Patent denomination: No plant patent has been assigned to this cultivar. No USPTO plant patent number is on record, and no primary record of any intellectual property protection has been located.
A separate accepted species, Goeppertia sanderiana, is recorded by Borchsenius, Suárez and Prince (2012) as distinct from Goeppertia ornata [1]. The relationship between the cultivar epithet 'Sanderiana' as applied to G. ornata and that separate accepted species is a nomenclatural ambiguity that no registration authority has resolved, because no International Cultivar Registration Authority has been appointed for Marantaceae [6].
Origin and Authorship
No originator is documented. This cultivar predates any registration authority for Marantaceae.
The epithet 'Sanderiana' reflects a historical botanical variety designation rather than a documented plant-breeding event with an identified originator. Kennedy (1994) recorded that Calathea sanderiana had been described as a species before being reduced to varietal rank under Calathea ornata [3], but the publication establishing the original species description and its author has not been retrieved from a primary record. No patent number, no assignee, no place of origin, and no date of selection are documented. No parentage (seed parent or pollen parent) is on record.
Limited public data available; further research needed to establish whether the variety epithet 'Sanderiana' traces to a nineteenth-century nursery listing or to a formal botanical publication, and to identify the author of Calathea sanderiana at the species rank from which it was later reduced.
Distinguishing Traits
No formal circumscription of 'Sanderiana' against other ornata-group selections has been located in any primary registration document. The closest primary-literature account of the traits associated with this entity is Kennedy's 1994 treatment of the ornata group [3].
Kennedy (1994) documented the diagnostic character of the group: juvenile leaves are green above and patterned with pink lines between the lateral veins, and purple below; as the plant matures, the lines shift toward white and usually disappear in leaves of mature, flowering plants; the underside of the leaf often changes from purple to green with maturity [3]. Kennedy noted that Calathea regalis, Calathea majestica and Calathea sanderiana were originally described as distinct species and were subsequently treated merely as varieties of Calathea ornata because of the similarity of their juvenile foliage [3]. No distinguishing traits separating 'Sanderiana' from other ornata-group selections have been formally published in a registration document.
Registration and Documentation
No International Cultivar Registration Authority has been appointed for Marantaceae. The International Society for Horticultural Science appoints registration authorities for specific plant genera and families; Marantaceae is not among the families for which an authority has been designated [6][7]. Digital Towns is not affiliated with, endorsed by, or accredited by the ISHS or any cultivar registration authority; it documents trade use and maintains nomenclatural evidence.
No primary registration document, no plant patent, and no protologue establishing 'Sanderiana' as an ICNCP-compliant cultivar epithet has been located. IPNI records the basionym authorship as Lem. (Lemaire) rather than Linden, which differs from the registry value; this discrepancy is flagged and has not been resolved against a primary record [4][5]. Limited authoritative sources available; further research needed on documented cultivation performance from botanic garden or university extension records.