21. The species M . excelsa is one of the few rainforest trees to grow in pure stands . 22. It is most noticeable in the eastern side of the park, where it often forms pure stands . 23. In a pure stand of Norway spruce, for instance, Roussel ( 1948 ) found the following relationships: 24. Chusquea quila may form pure stands called " quilantales " occupying all the understory of a forest. 25. In places, pure stands of hemlocks unfold into the distance, and some of the trees are giants. 26. Pure stands of " Arctostaphylos uva-ursi " can be extremely dense, with heights rarely taller than 6 inches.27. Pure stands usually indicate sites unfavorable to conifer growth or recurring disturbance such as fire or logging activities.28. It is often found in pure stands or forests mixed with eastern white pine, balsam fir, or black spruce. 29. Most players are not pure stand -up or butterfly, but simply tend to prefer stand-up or butterfly over the other. 30. Pure stands of " Nothofagus betuloides " and " Nothofagus pumilio " are found just below the tree line.
