Réponse de collègues américains:
The northernmost Sycamore I've seen is on the north bank of the Ausable
River in the area locals call "Carpenter Flats." It can be seen from the
big green bridge on Route 9, especially if you're traveling north on Route
9.
I have not inspected the tree up close or scouted around for other
sycamores there. This may be the only one so it may be a population of
one! I was certainly surprised the first time I spotted it!
>>>>
I will collect specimens this summer and deposit them at Plattsburgh so we
have the record.
-Chris
--
Christopher T. Martine, Ph.D.
Associate Professor, Dept. Biological Sciences
Curator, SUNY Plattsburgh Herbarium
101 Broad Street, Plattsburgh, NY 12901
Having a great summer here. If you look at the NY Flora Atlas entry,
>
http://www.newyork.plantatlas.usf.edu/P ... px?id=2102 > you can see that there are old 1879 records from Essex County and 1940s
> and 50s records from Washington and Warren Counties, the closest ones to
> Quebec. Nothing from Clinton Co. on the border. I don't know if anyone
> has seen any more recent records but I will copy a few people on this to
> see if they know.
>
> Steve
>
> Steve Young
> Chief Botanist
> New York Natural Heritage Program
> 625 Broadway, 5th Floor
> Albany, NY 12233-4757
Years ago I saw a number of large trees along Lake Champlain just south of Port Douglas. This isn't far from the Carpenter Flats site. I didn't collect a specimen, not realizing that we didn't have any from the area. Our records here at NYS indicate only a few observations from the area:
Clinton Co.: South of Valcour in 1965; Ausable delta in 1972
Essex Co.: Westport in 1965
In any case, the species seems to be well established in the area.
Chuck
Charles Sheviak
Curator of Botany
New York State Museum
Albany, NY 12230