ALOCASIA FALLAX

ORIGINAL DESCRIPTION:

fallax description.PNG

SYNONYMS: N/A

DISTRIBUTION: Assam, Bangladesh, East Himalaya (Sikkim Himalaya and Khasia Hills)

fallax geo.png

CLIMATE: Subtropical humid climate

Humidity is moderate throughout the year, ranging from 60% to 70%

Temperature is varies between the seasons - within the range of 48°F/9°C to 88°F/31°C during the day. Minimum temperatures never dip below 45°F/7°C

Rainy and humid season (October to May) and a dry season between June and October. The average annual rainfall is 1,200 mm

ECOLOGY: Found at alt. 2-4000 ft


 

SPECIES DESCRIPTION:

Leaves broadly ovate or orbicular-ovate sagittate (12-20 in by 9-12 in)m basal lobes (4-8 in), one-third as long as the anticous connate from 1/8-1/2 their length converging sinus narrow. Nerves numerous, 7-9 pairs; petiole 1-2 ft.

INFLORESCENCE:

Peduncle 18 in. Spathe 5-6 in., membranous, yellow; fruiting tube 2-2.5, ellipsoid or pyriform. Seeds 1/4 in. diam., globose. tube of spathe oblong lanceolate cuspidate limb, ovaries narrowed into a rather long style, stigma 3-cleft. Near A. decipiens, but seeds larger, and stigma very different, basal lobes of many-nerved leaves approximate. It is probably nearer A. fornicata.

VARIEGATED FORMS: N/A

ETYMOLOGY: The name comes from the latin word fallax, which means deceptive

NOTES: The chromosome number of Alocasia fallax is 2n = 28, with 24 metacentric and 4 submetacentric chromosomes, counted in material of the species maintained in the garden of the Bangladesh National Herbarium. Plant and cell numbers are not stated, and the authors give the count as probably the first report for the species.⁴

CULTIVARS: N/A

HYBRIDS: N/A


REFERENCES:

  1. Bonplandia. Zeitschrift für die gesammte Botanik 7: 28 (1859)

  2. The Flora of British India 6: 527 (1894)

  3. Kew Gardens | Plants of the World Online

  4. Sultana, S.S., Ara, H. & Alam, S.S. (2011). Karyotype analysis with orcein and CMA in two species of Alocasia (Schott) G. Don (Araceae). Bangladesh Journal of Botany 40(1): 53–56.

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