<i>Heracleum sosnowskyi</i> Manden. in the PetrSU Botanical Garden

New york botanical garden-research and education.

Compare the Phenology of Fritillaria, Bellevallia and Muscari species in National Botanical Garden of Iran

Phenology is one of the important issues in ecology, which studies various stages of plant life and its relation with climatic and ecological conditions. Useful information for the production cycle is obtained by evaluating the various stages of native species development. In this research, the phenology of 17 species of Fritillaria, Bellevallia and Muscari in the National Botanical Garden of I...

How to Draw Three People in a Botanical Garden

AARON is a program designed to investigate the cognitive principles underlying visual representation. Under continuous development for fifteen years, it is now able autonomously to make “freehand” drawings of people in garden-like settings. This has required a complex interplay between two bodies of knowledge: objectspecific knowledge of how people are constructed and how they move, together wi...

Trees, forests and jungles: a botanical garden for cluster expansions

Combinatoric formulas for cluster expansions have been improved many times over the years. Here we develop some new combinatoric proofs and extensions of the tree formulas of Brydges and Kennedy, and test them on a series of pedagogical examples.

Botanical Garden of Irreducible Automorphisms of Free Groups

We give a classification of iwip outer automorphisms of the free group, by discussing the properties of their attracting and repelling trees.