Difference between revisions of "Crataegus brittonii"

Eggleston

Bull. Torrey Bot. Club 36: 640. 1909.

Common names: Britton hawthorn
Conservation concernEndemic
Synonyms: Crataegus uniflora var. brittonii (Eggleston) Lance
Treatment appears in FNA Volume 9. Treatment on page 606. Mentioned on page 605, 607.
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|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V9/V9_1042.xml
 
|subfamily=Rosaceae subfam. Amygdaloideae
 
|subfamily=Rosaceae subfam. Amygdaloideae
 
|tribe=Rosaceae tribe Gillenieae
 
|tribe=Rosaceae tribe Gillenieae

Latest revision as of 22:53, 5 November 2020

Shrubs, slender, 30–40 dm. Stems: twigs: new growth pubescent, 1-year old gray-brown, ± shiny, glabrous, older gray; thorns on twigs often numerous, ± straight to slightly recurved, 1-year old blackish, ± slender, 3–5 cm. Leaves: petiole 3–6 mm, flared distally, pubescent, glandularity not recorded; blade elliptic-rhombic to broadly elliptic-rhombic, 2–3.5 cm (usually widest near middle), length/width = 1.3 or wider, base broadly cuneate, lobes 0, or 1(or 2) per side, margins crenate-serrate, teeth caducous, gland-tipped, venation ± craspedodromous, veins 3 or 4 per side, apex rounded to subacute, abaxial surface pale green, soft pubescent, indumentum variably persistent with age, adaxial dark green, appressed-pubescent. Inflorescences 2–6-flowered; branches densely pubescent; bracteoles type 2. Flowers 14–18 mm diam.; hypanthium densely pubescent; sepals foliaceous, at least as long as petals, adaxially pubescent; anthers ivory; styles 3–5. Pomes red or ruddy, sometimes becoming dull brown, 14 mm, pubescent; sepals reflexed; pyrenes 3–5.


Phenology: Flowering Apr–May; fruiting Sep–Nov.
Habitat: Brush
Elevation: 0–200 m

Discussion

Of conservation concern.

Crataegus brittonii is a rare species with a scattered distribution.

For a discussion of the possibly synonymous but untypified pink-anthered Crataegus rhodella Ashe and C. arenicola Ashe see J. B. Phipps and K. A. Dvorsky (2006).

Selected References

None.

Lower Taxa

None.
... more about "Crataegus brittonii"
James B. Phipps +
Eggleston +
Crataegus sect. Parvifoliae +
Britton hawthorn +
Ala. +, Ga. +, N.C. +  and Tenn. +
0–200 m +
Brush +
Flowering Apr–May +  and fruiting Sep–Nov. +
Bull. Torrey Bot. Club +
Conservation concern +  and Endemic +
Crataegus uniflora var. brittonii +
Crataegus brittonii +
Crataegus (sect. Coccineae) ser. Parvifoliae +
species +