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http://jbsd.in 486 ISSN: 2229-3469 (Print)
Bioscience Discovery, 8(3): 486-487, July - 2017
© RUT Printer and Publisher
Print & Online, Open Access, Research Journal Available on http://jbsd.in
ISSN: 2229-3469 (Print); ISSN: 2231-024X (Online)
Short Communication
Rivina humilis var. bracteata D. Maity et al. (Phytolaccaceae),
A new distributional record for (Maharashtra) India
Umakant B Deshmukh and O S Rathor*
Higher Learning And Research Centre and P.G. Department of Botany,
Janata Mahavidyalaya, Chandrapur . 442401(Maharashtra). *Ex. Principal and Reader in Botany N.E.S. Science College, Nanded. 431604 (Maharashtra).
Article Info
Abstract
Received: 22-05-2017,
Revised: 26-06-2017,
Accepted: 29-06-2017
During ethnobotanical survey an interesting plant of family Phytolaccaeae was
collected from Chandrapur District of Maharshtra. After critical observation it
was identified as Rivina humilis L. var. bracteata . It is reported as a new
distributional plant record for Maharashtra. A detailed description with
description, photograph, notes on occurrence and distribution of this taxon are
provided for easy identification.
Keywords:
Phytolaccaeae , Rivina
humilis L. var. bracteata ,
new record , Maharshtra.
INTRODUCTION
Linnaeus in 1753, recognized genus Rivina
and since then several species have been recognized
by various workers, giving special emphasis to
morphological plasticity in vegetative as well as
reproductive characters. The genus Rivina is named
after A.Q. Rivinus, Professor of Botany and
Medicine at Leipzig 1691-1725 (Ghosh and Sikdar,
1983).
Rivina humilis L. belongs to the family
Phytolaccaceae is a native of tropical America and
is now widespread throughout in tropics and
subtropics (Dequan, 2003; Tseng et al., 2008;
Mabberley, 2008). In many countries this species is
often cultivated in gardens as the juicy pericarp is
used in cosmetics (Walter, 1909). Rivina is
monotypic genus and treated with a single species,
R. humilis (Dequan, 2003; Mabberley, 2008 ).
Recently Rivina humilis var. bracteata
reported as new variety from Kolkata, West Bengal
of India (Mandal et al., 2014). An occurrence of
Rivina humilis var. bracteata from Chandrapur
District of Maharshtra shows an extended
distribution and new record to the flora of
Maharshtra.
Taxonomic Treatment
Rivina humilis L. var. bracteata D. Maity, Sonia
Mitra, Manasi Mandal et Maiti,. Rheedea Vol.
24(2).pp 99-104, 2014.
Description
Erect or decumbent, sparingly branched,
glabrescent herb to 75 cm high; leaves ovate or
rarely ovate-elliptic, base often oblique, petiolate,
exstipulate; inflorescence terminal or axillary
raceme; flowers white, often flushed with pink
along sepal margin, pedicellate, bracteate; bracts
broadly oblanceolate, 1–1.5 × 0.4–0.5 mm, abruptly
contracted towards middle or above middle into a
long subulate to narrowly triangular, acuminate
apical lobe or often tridentate with two small lateral
lobes; lateral lobes triangular, 0.1–0.2 × 0.1– 0.2
mm; mid-lobe subulate or narrowly triangular–
acuminate, c. 0.5 × 0.1 mm; minutely hairy, often
persistent in ripe fruits; sepals 4, obovate or ovate
elliptic, 2–3 × 0.9–2.5 mm, sparsely hairy on outer
surface, white, often flushed with pink along
margin, persistent, becoming green; stamens 4,
dimorphic, two smaller; filaments persistent,
becoming green, often acrescent; anthers with
unequal lobes, basifixed, often persistent in
http://biosciencediscovery.com 487 ISSN: 2231-024X (Online)
Deshmukh and Rathor
ripe fruits; ovary globose, often with fine reticulate striations; style subterminal; fruits globose, succulent,
red or scarlet; seeds black, sparsely hairy or glabrous, shiny with granular surface (Photo plate.1)
Fig. 1. Rivina humilis var. bracteata. A.Habit of plant. B. Flowering Branch. C. Mid-
lobe of the bracts is often curled at the base of Flower D. Bract E.Seed
Flowering and Fruiting: More or less throughout
year. (Mostly in Aug.- Mar.).
Habitat: Ornamental .
Note: Rivina humilis L. var. bracteata similar to R.
humilis L. var. humilis, but bracts broadly
oblanceolate, abruptly narrowed from middle or
above middle into a long subulate to narrowly
triangular, acuminate apical lobe (often tridentate
near middle). Distribution:,Earlier only known
from Type locality Kolkata, India. Now collected
from Chandrapur city, ,Maharshtra by Umakant
Deshmukh 15 March 2016 ( GPS Location. GPS
Location. N190 58.341
' E079
016.947
') Herbarium
specimen deposited at P.G.Department of of Botany
JMV, Chandrapur (Voucher No.210) .
Flowering and Fruiting: More or less throughout
year. (Mostly in Aug.- Mar.).
Habitat: Ornamental
Acknowledgement
The authors are thankful to Dr. Debabrata
Maity Professor,Taxonomy and Biosystematics
Laboratory, Department of Botany, University of
Calcutta Department for confirming the identity of
the specimen and his help and encouragement. The
authors are also grateful to Dr. Ahok S. Jiwatode,
Secretary, Chanda Shikshan Prasarak Mandal ,
Chandrapur. Dr. M. Subhash, Principal and Dr. Y.
B Gedam Head, Department of Botany, Janata
Mahavidyalay, Chandrapur for providing laboratory
facilities.
REFERENCES
Dequan L, 2003. Phytolaccaceae. In: Zhengyi, W.
and Raven, P. H. (eds.), Flora of China. Vol.5.
Chinese Academy of Science, Beizing. pp. 435-
436.
Ghosh RB and Sikdar JK, 1983. A revision of the
Indian Phytolaccaceae (sensu lato), J. Econ. Tax.
Bot., 4: 153-163.
Linnaeus C, 1753. Species Plantarum. Ed.1.
Laurentius Salvius. Sweden. pp. 121-122.
Mabberley DJ, 2008. Mabberley’s Plant Book – a
portable dictionary of flowering plants and thei
uses. Cambridge University Press, Cambridge.
Mandal Manasi, Sonia Mitra, GG Maiti and D
Maity, 2014.. A new variety of Rivina humilis and
the status of R. bengalensis (Phytolaccaceae).
Rheedea 24(2):99-104.
Moquin, 1849. Phytolaccaceae. In: De Candolle, A.
(Ed.), Prodromus Systematis Naturalis Regni
Vegetabilis. Vol. 13(2). Paris, Sumptibus Victoris
Masson. pp. 2-40
Tseng YH, Wang CC and YT Chen, 2008. Rivina
humilis L. (Phytolaccaceae), A newly naturalized
plant in Taiwan. Taiwania 53(4): 417-419.
Walter H, 1909. Phytolaccaceae. In: Engler, A.
(Ed.), Das Pflanzenreich. Vol. 39 [IV.83], Leipzig.
pp. 1-154.
How to Cite this Article:
Umakant B Deshmukh and O S Rathor, 2017. Rivina humilis var. bracteata D. Maity et al.
(Phytolaccaceae), A new distributional record for (Maharashtra) India. Bioscience Discovery, 8(3):486-487.
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