New form of Pinus sylvestris L. founded in the Udelny park (St. Petersburg, Russia)

Pinus sylvestris L. f. serpentina L. V. Orlova & V. V. Byalt var. nova (Pinaceae) – a new form of Scots pine with very specific long serpentine winding lateral shoots – was founded in the Udelnyi park (St. Petersburg) and described. Information on the location, the difference between a new form and close taxa (Latin diagnosis is given), the type specimens and their storage sites are indicated. The article is illustrated by three photos of this form in nature, a the photo of the holotype stored in LE, and a the map.