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Published In: Species Plantarum 2: 992. 1753. (1 May 1753) (Sp. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
General/Distribution: The genus contains 45 cosmopolitan species. Two species occur a Pakistan.
Comment/Acknowledgements: Hasanain & Rahman (Pl.Kar. & Sind 31.1957) reported Myriophyllum intermedium Linn. from Sind, but no specimens are cited. According to C.B.Clarke in Hook.f., Fl.Brit.Ind.2:433.1878, the distribution of the species is in Malay, Australia, New Zealand and S. America; its occurence in Sind is unlikely and the record needs to be confirmed.

 

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Aquatic, submerged and floating perennials. Leaves in whorls of 3-6, pectinate or pinnate. Flowers unisexual or hermaphrodite, axillary, alternate or verticillate in usually emergent spikes. Calyx campanulate; lobes 4, triangular. Petals 4, usually scaphoid or absent. Male flower: stamens 6-8. Female flower: ovary 1-4-locular; stigmas plumose or papillose. Fruit schizocarpic, splitting into one-seeded mericarps.
 

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1 Bracts 1.5-3 mm long, upper entire, lower pinnatifid or with a cleft margin. Petals reddish in male flower, minute in female. Leaves in whorls of 4 Myriophyllum spicatum
+ Bracts 10-25 mm long, pectinate. Petals greenish-yellow in male flower, absent in female. Leaves in whorls of (4-) 5 Myriophyllum verticillatum
 
 
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