Salix and Populus species, as well as Alnus, Tilia, Ulmus
, and Fraxinus can build reiterative sprouts that can replace the vertical axis of a broken or fallen tree.
Abies appears at the transition to zone 2, along with Fraxinus nigra, and Ulmus
americana [ILLUSTRATION FOR FIGURE 6 OMITTED].
He developed some loose stools later in the day and was treated again with Ulmus
Plant materials and treatments at low temperature: Siberia elm (Ulmus
pumila) shoot cuttings with dozens of three-week old samaras and leaves were grown in glassy containers containing tap water in a growth chamber with 12 h photoperiod and photosynthetic photon flux density (PPFD) of 200 mmol m-2 s-1 and temperature of 22-25oC.
Americana, Fraxinus pennsylvanica, Prunus serotina and Betula papyrifera) were planted into 0.95 L pots (one species per pot) of each kind of soil (GM or NGM).
The subcanopy contains Acer negundo, boxelder; Gleditsia triacanthos, honey locust; Fraxinus pennslyvanica, green ash; Ulmus
americana, American elm; and Morus alba, white mulberry--all common at this site.
Mature leaves of adult individuals of Populus alba, Populus deltoides, Robinia pseudoacacia, Ulmus
pumila and Fraxinus americana from the University Campus, Tandil, Buenos Aires, Argentina (37[degrees] 19'S, 59[degrees] 08'W) were collected on February 2004.
Entre la vegetacion de ribera destacan las saucedas (Salix atrocinerea Brot., Salix alba L.), fresnedas (Fraxinus angustifolia Vahl) y olmedas (Ulmus
Wet Meadow--12 plots Typha angustifolia 4 10.9 Frangula alnus--seedlings 10 5.0 Equisetum arvense 11 4.0 Emergent Marsh--5 plots Phragmites australis 5 48.4 Dipsacus sylvestris 2 7.4 Cilsilun arvense 5 6.5 Disturbed Shrub Swamp--10 plots Shrub Layer Frangula alnus 6 8.4 Malus sp.--small trees 7 5.4 Pinus sylvestr is 5 2.6 Herb Layer Carex granularis 8 3.9 Scirpus pendulus 8 1.3 Fragaria virginiana 2 1.1 Disturbed Wet Forest--14 plots Tree Layer Ulmus
americana 11 19.5 Malus sp.
Winnipeg is known for its vast number of (over 200,000) surviving American elms (Ulmus
At the beginning of PR-6 (5450-3400 BP), Fraxinus and Carpinus immigrated to the area, QM had two pronounced maximums, at 5300 and 4500 BP, and a distinct Ulmus
decline occurred at 4250 BP (Fig.
We discovered 69 roost trees used by females and young in six different counties, and most species of tree are typical of lowlands, such as various ash (Fraxinus, 45%), maple (Acer, 36%), and elm (Ulmus