The 'May' blossom flowers on which tree?
Nuts in May (rhyme) is a variant of "Here We Go Round the Mulberry Bush", with which it shares a tune and closing line. Nuts are not gathered in England in May. The lyrics are probably a corruption of "knots of may", referring to the blossom of the common hawthorn. Another possible "nut" is the corm or tuber of "Conopodium majus", commonly called pignut, groundnut etc. and easily found in May when the plant flowers. These "nuts" were commonly gathered by children as they grow under the ground sparsely, so they were not a viable food source to be gathered in quantities by adults.
Blossom tree (graph theory) where each node is marked as an overcrossing or undercrossings. Blossom trees can be used to generate random 4-regular planar graphs. However, these do not always give knot diagrams as there may be more than one component. This can be checked in cubic time. Blossom tree (graph theory) In the study of planar graphs, blossom trees are trees with additional directed half edges. Each blossom tree is associated with an embedding of a planar graph. Blossom trees can be used to sample random planar graphs. A blossom tree is constructed from a rooted tree embedded in the plane by adding