Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
                                        
Specimen Records:17Public Records:13
Specimens with Sequences:16Public Species:2
Specimens with Barcodes:15Public BINs:0
Species:3         
Species With Barcodes:3         
          
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Barcode data

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Locations of barcode samples

Collection Sites: world map showing specimen collection locations for Beaucarnea

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Wikipedia

Beaucarnea

Beaucarnea is a genus of four species of flowering plant native to Mexico, Belize, and Guatemala. In the APG III classification system, it is placed in the family Asparagaceae, subfamily Nolinoideae (formerly the family Ruscaceae[1]). The genus has been included in Nolina and in various other families now subsumed in the Asparagaceae.

The species are small tropical xerophytic trees growing to 6-10 m tall, with a trunk 20-40 cm diameter with a flared base; young plants are single-stemmed, branching only after flowering. The leaves are evergreen, linear, strap-shaped, 0.5-1.8 m long and 1.5-2 cm broad, leathery in texture, with a finely serrated margin. The flowers are produced only on old trees, forming on large panicles 75-110 cm long, the individual flowers numerous but very small (1.5 mm diameter), greenish-white, with six tepals.

Selected species

Cultivation and uses

The most commonly seen species is Beaucarnea recurvata (syn. Nolina recurvata), which is often called the “ponytail palm” in English (although it is not a true palm). This species is often grown as a houseplant in temperate latitudes. Successful cultivation requires winter minimum temperatures of above 10 °C, rising to around 30 °C in summer; frequent watering is needed in summer, but not in winter, when they require relatively dry conditions to avoid root decay.

References

  1. ^ Chase, M.W.; Reveal, J.L. & Fay, M.F. (2009), "A subfamilial classification for the expanded asparagalean families Amaryllidaceae, Asparagaceae and Xanthorrhoeaceae", Botanical Journal of the Linnean Society 161 (2): 132–136, doi:10.1111/j.1095-8339.2009.00999.x 
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