ALEXANDRIA, Va., March 17 -- United States Patent no. PP37,336, issued on March 17, was assigned to Gebr. Valstar Beheer B.V. (Maasland, Netherlands).
"Calathea plant named 'HGV25'" was invented by Oscar Valstar (Maasland, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "'HGV25' is a new and distinctive variety of Calathea plant which is characterized by having a broader growth habit when compared to other varieties of the same species, a green adaxial laminar surface with a variegation pattern consisting of a broadly and irregularly outlined midrib colored very light green to greyed-green and greyed-green striations along the interveinal areas of the distal half of the lamina, a dark greyed-purple...