Nantucket rock pear

Nantucket rock pear
Nantucket rock pear ( Amelanchier nantucketensis )
Systematics
Family : Rose family (Rosaceae) Subfamily : Spiraeoideae Tribe : Pyreae Sub tribus : Pome fruit family (Pyrinae) Genre : Rock pear ( Amelanchier ) Type : Nantucket rock pear
Scientific name
Amelanchier nantucketensis
EPBicknell

The Nantucket Rock pear ( Amelanchier nantucketensis , English Nantucket serviceberry , Nantucket shadbush ) is a pome fruit crops (Pyrinae) in the family of the rose family (Rosaceae).

features

Multi-branched bush 20–150 cm high. It forms small colonies through root brood . The branches are pencil-shaped, the bark appears dark purple on young branches and turns gray with age. The wintering buds are reddish, 5–8 mm long and appear varnished. The leaves are dark green, slightly hairy and finely serrated, 2–3 cm long and 1.5–2 cm wide. The inflorescences are axillary clusters with 10–14 flowers and 2–4.5 cm long. The flowers are cream-colored, slightly hairy on the outside. The petals are 2–4 mm long. The sepals are up to 2 cm long, ovate-lanceolate and slightly bent back. The edible apple fruits are dark blue.

Distribution and location requirements

Nantucket Serviceberry is relatively rare and is under regional protection. Its distribution area extends over the New England states from Nantucket and Martha's Vineyard to Long Island . There are also scattered occurrences in Maryland , Virginia , Maine, and Nova Scotia .

The plant grows in dry, sandy, sunny habitats such as sandy grasslands and heather, moors and moraine landscapes (pitch-pine-oak, scrub-oak barrens, pine barrens), but also on river banks.

Individual evidence

1. ↑ Fernald, 1950.
2. ↑ Comprehensive Report Species - Amelanchier nantucketensis on NatureServe Explorer, accessed June 27, 2018.
3. ↑ ^{a b} Amelanchier nantucketensis . ( Memento of the original from October 26, 2011 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Center for Plant Conservation. 

literature

• Eugene P. Bicknell: The ferns and flowering plants of Nantucket. VIII. In: Bulletin of the Torrey Botanical Club. 1911, 38 (10): 447-460.
• Garrett E. Crow: New England's Rare, Threatened, and Endangered Plants. Prepared for the United States Department of Interior, Fish and Wildlife Service, Northeast Region. June 1982.
• Alison C. Dibble, Christopher S. Campbell: Distribution and conservation of Nantucket shadbush, Amelanchier nantucketensis (Rosaceae). In: Rhodora 1995, 97 (892): 39-349.
• Alison C. Dibble, Francis A. Drummond: Floral syndrome in Amelanchier nantucketensis (Rosaceae). 1. Floral density, bee activity, and characterization of andropetaly. 1997.
• ML Fernald: Gray's manual of botany. 8th ed. Corrected printing 1970. D. Van Nostrand Company, New York 1950.
• Flora of North America Editorial Committee: Flora of North America North of Mexico. Vol. 9. Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York 2014.

Web links

Commons : Nantucket rock pear ( Amelanchier nantucketensis )  - collection of images, videos, and audio files

• Amelanchier nantucketensis EP Bicknell on USDA Plants Profile, accessed June 27, 2018.
• amelanchier School of Biology and Ecology, University of Maine, accessed June 27, 2018.
• Maine Natural Areas Program - Amelanchier nantucketensis Bickn. Department of Agriculture, Conservation and Forestry, Maine.gov, accessed June 27, 2018.
• Amelanchier nantucketensis Bickn. New England Wild Flower Society, accessed June 27, 2018.
• Rare, Threatened and Endangered Plant Fact Sheets - Nantucket Shadbush Department of Natural Resources, Maryland.gov, accessed June 27, 2018.