Lagenandra | |
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Lagenandra ovata (left) and Lagenandra koenigii (right) [1] | |
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Lagenandra toxicaria, in Kerala, South India. | |
Scientific classification
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Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Alismatales |
Family: | Araceae |
Subfamily: | Aroideae |
Tribe: | Cryptocoryneae |
Genus: |
Lagenandra Dalzell |
Lagenandra is a genus of aquatic (to semi-aquatic) flowering plants in the aroid family, Araceae, [2] endemic to the Indian Subcontinent ( Bangladesh, India and Sri Lanka). [3] [4] The genus has gradually become more known through the aquascaping and aquarium hobby, in which several related Araceae genera are already highly prized and grown on a large scale (notably Anubias, Bucephalandra and Cryptocoryne); Lagenandra, however, is still relatively rare in cultivation or private collections.
The genus is visually-similar to (and, in places, sympatric with) the Cryptocoryne, but is distinguishable for its involute vernation ( leaf growth); comparatively, Cryptocoryne tends to exhibit convolute vernation. [5]
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]
Accepted species are as follows. [3] A key to the species described before 1986 was provided by Crusio and de Graaf. [7]
Lagenandra | |
---|---|
![]() | |
Lagenandra ovata (left) and Lagenandra koenigii (right) [1] | |
| |
Lagenandra toxicaria, in Kerala, South India. | |
Scientific classification
![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Alismatales |
Family: | Araceae |
Subfamily: | Aroideae |
Tribe: | Cryptocoryneae |
Genus: |
Lagenandra Dalzell |
Lagenandra is a genus of aquatic (to semi-aquatic) flowering plants in the aroid family, Araceae, [2] endemic to the Indian Subcontinent ( Bangladesh, India and Sri Lanka). [3] [4] The genus has gradually become more known through the aquascaping and aquarium hobby, in which several related Araceae genera are already highly prized and grown on a large scale (notably Anubias, Bucephalandra and Cryptocoryne); Lagenandra, however, is still relatively rare in cultivation or private collections.
The genus is visually-similar to (and, in places, sympatric with) the Cryptocoryne, but is distinguishable for its involute vernation ( leaf growth); comparatively, Cryptocoryne tends to exhibit convolute vernation. [5]
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]
Accepted species are as follows. [3] A key to the species described before 1986 was provided by Crusio and de Graaf. [7]