Lagenandra

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Ordo: Alismatales

Familia: Araceae
Subfamilia: Aroideae
Tribus: Cryptocoryneae
Genus: Lagenandra
Species: L. bogneri – L. dewitii – L. erosa – L. gomezii – L. jacobsenii – L. keralensis – L. koenigii – L. lancifolia – L. meeboldii – L. nairii – L. ovata – L. praetermissa – L. thwaitesii – L. toxicaria – L. undulata
Source(s) of checklist:
Name

Lagenandra Dalzell, 1852
References

Dalzell, N.A., 1852. Hooker's J. Bot. Kew Gard. Misc. 4: 289

Links

Govaerts, R. et al. 2018. Lagenandra in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2018 Nov. 04. Reference page.
International Plant Names Index. 2018. Lagenandra. Published online. Accessed: Nov. 04 2018.
The Plant List 2013. Lagenandra in The Plant List Version 1.1. Published online. Accessed: 2018 Nov. 04.
Tropicos.org 2018. Lagenandra. Missouri Botanical Garden. Published online. Accessed: 04 Nov. 2018.

Vernacular names
eesti: Puguvõhk

Lagenandra is a genus of flowering plants in the family Araceae.[2] It is endemic to the Indian Subcontinent (Bangladesh, Sri Lanka, and India).[3][4] The genus is similar to Cryptocoryne, but can be distinguished from it by its involute vernation. Cryptocoryne on the other hand exhibit convolute vernation.[5]
Description

Helophytes, rarely rheophytes, with thick creeping rhizome; leaf blade simple, ovate to almost linear, fine venation transverse-reticulate; spathe tube with connate margins; spadix entirely enclosed in spathe tube; flowers unisexual, perigone absent. Differs from Cryptocoryne in having female flowers spirally arranged (pseudo-whorl in Lagenandra nairii, whorled in Lagenandra gomezii) and free; spathe tube "kettle" with connate margins (containing spadix) occupying entire spathe tube; spathe blade usually opening only slightly by a straight or twisted slit; berries free, opening from base; leaf ptyxis involute.[6]
Species

Accepted species are as follows.[3] A key to the species described before 1986 was provided by Crusio and de Graaf.[7]

Lagenandra bogneri de Wit - Sri Lanka
Lagenandra dewitii Crusio & de Graaf - Sri Lanka
Lagenandra erosa de Wit - Sri Lanka
Lagenandra gomezii (Schott) Bogner & Jacobsen - Bangladesh
Lagenandra jacobseni de Wit - Sri Lanka
Lagenandra keralensis Sivadasan & Jaleel - Kerala
Lagenandra koenigii (Schott) Thwaites - Sri Lanka
Lagenandra lancifolia (Schott) Thwaites - Sri Lanka
Lagenandra meeboldii (Engler) C.E.C. Fischer - southwestern India
Lagenandra nairii Ramamurthy & Rajan - southwestern India
Lagenandra ovata (L.) Thwaites - southwestern India, Sri Lanka
Lagenandra praetermissa de Wit & Nicolson - Sri Lanka
Lagenandra thwaitesii Engler - Sri Lanka
Lagenandra toxicaria Dalzell - southwestern India
Lagenandra undulata Sastry - Assam

References

Pohl in Das Pflanzenreich of Engler - "Das Pflanzenreich" Vol. 73-74 (1920)
de Wit, H.C.D. (1978). "Revisie van het genus Lagenandra Dalzell (Araceae)". Mededelingen Landbouwhogeschool Wageningen. 78 (13): 1–45.
Kew World Checklist of Selected Plant Families
Bastmeijer, Jan D. "Lagenandra gallery". Retrieved 2009-01-09.
Bown, Demi. Aroids: Plants of the Arum Family. Timber Press. ISBN 0-88192-485-7.
Simon J. Mayo, Josef Bogner, Peter C. Boyce: The Genera of Araceae. 1. published, Royal Botanic Gardens/ Kew Publishing, London 1997, ISBN 1-900347-22-9 (Full-text as PDF-file; Continental Printing, Belgium 1997).
Crusio W.E. and de Graaf A. (1986). "Lagenandra dewitii Crusio et de Graaf (Araceae), eine neue Art aus Sri Lanka". Aqua Planta. 11: 56–59.