Ulmus americana var. floridana, the Florida elm, first described as Ulmus floridana by Alvan Wentworth Chapman in the 1860s, is smaller than the type, and occurs naturally in north and central Florida south to Lake Okeechobee.[1]
| Ulmus americana var. floridana | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Rosales |
| Family: | Ulmaceae |
| Genus: | Ulmus |
| Species: | |
| Variety: | U. a. var. floridana
|
| Trinomial name | |
| Ulmus americana var. floridana | |
Description
editVase-shaped, non-pendulous, growing to a maximum height of 22 metres (72 ft), with a slightly greater spread.[1][2][3] The leaves, to 6 in long, are dark green all summer and turn yellow in autumn.[1][4]
Pests and diseases
editThe tree is no less susceptible to Dutch elm disease, although the disease is less prevalent in Florida.[4]
Cultivation
editOccasionally planted as a shade and ornamental tree in Florida.[4][5]
Accessions
edit- The IRREC Garden, University of Florida. Accession details not available.[6]
References
edit- ^ a b c Gilman, Edward F.; Watson, Dennis G. (October 1994). "Ulmus americana var. floridana" (PDF). Archived from the original on 9 January 2017. Retrieved 26 February 2018.
{{cite journal}}: Cite journal requires|journal=(help)CS1 maint: bot: original URL status unknown (link) - ^ Photograph of two var. floridana on horticopia.info, Edward F. Gilman
- ^ Photograph of young var. floridana, Edward Gilman, University of Florida, edis.ifas.ufl.edu
- ^ a b c Photograph of var. floridana leaves, John Lampkin; Florida Native Plants Society, fnps.org
- ^ Photograph of cultivated var. floridana, University of Florida, edis.ifas.ufl.edu
- ^ U. americana var. floridana, irrecenvhort.ifas.ufl.edu
External links
edit- Harvard University Herbaria, specimen 0034307 Sheet labelled U. americana var. floridana; Chapman's Chipola River specimen, Florida; 1860
- Herbarium of the Archbold Biological Station, vplants.org specimen ARCH04148 Sheet labelled U. americana var. floridana; Venus, Highlands County, Florida, 1949
- Herbarium of Florida State University, Tallahassee; specimen TTRS_000009461 Sheet labelled U. americana var. floridana (juvenile leaves); Otter Creek, Levy County, Florida, 1976