Vaccinium sect. Cyanococcus

A. Gray

Mem. Amer. Acad. Arts, n. s. 3: 53. 1846.

Treatment appears in FNA Volume 8. Treatment on page 526. Mentioned on page 516.

Shrubs, usually erect, 0.1-50 dm, rhizomatous, (twigs of previous season verrucose, perennating buds dimorphic). Leaves usually deciduous, rarely persistent, (abaxial surface hairy or glabrous, adaxial surface usually glabrous). Inflorescences corymbs, terminal on axillary shoots from buds of previous season. Pedicels articulated with calyx-tube. Flowers: sepals 5; petals 5, connate for nearly their entire lengths, corolla urceolate to cylindric; stamens 10, included; anthers without awns, tubules 2-4 mm, with terminal pores. Berries pseudo 10-locular. Seeds (4-) 10-25 (-40). 2n = 24, 48, 72.

Distribution

North America

Discussion

Species 9 (9 in the flora).

Section Cyanococcus contains populations that are all homoploids, regardless of species, and are interfertile; naturally occurring hybrids have been described (S. P. Vander Kloet 1988 and references therein). The blueberries are endemic to North America; large-scale plantings elsewhere have resulted in the establishment of adventive populations.

Selected References

None.

"entire" is not a number.

72 +, 48 +  and 24 +
epigynous +  and hypogynous +
Sam P. Vander Kloet +
A. Gray +
furrowed +  and smooth +
not flaky +
ovate;oblong-lanceolate or spatulate +
membranous;coriaceous +
rotate to crateriform campanulate cylindric globose or urceolate +
North America +
undifferentiated +
fusiform +
hairy +  and glabrous +
unisexual +  and bisexual +
indehiscent +  and loculicidal +
ovoid;globose +
terminal +  and axillary +
pseudoverticillate +  and alternate +
persistent +  and deciduous +
usually much shorter +
shorter to longer +
serrate +  and entire +
10-locular +, pseudo +  and 4-5-locular +
parietal +, axile +  and placentation +
tenuinucellate +  and unitegmic +
epigynous +  and hypogynous +
reduced +
not sticky +
4-5-carpellate +
Mem. Amer. Acad. Arts, n. s. +
2-10-flowered +
distinct +
ellipsoid +
procumbent +  and creeping +
creeping +, spreading +  and erect +
peltate +  and capitate +
straight +
brochidodromous +
hairy +  and glabrous +
Vaccinium sect. Cyanococcus +
Vaccinium +
section +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
evergreen +, deciduous +  and perennial +
heterotrophic +, autotrophic +  and mycotrophic +
multicellular-hairy +