Nymphaea caatingae
| Nymphaea caatingae | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Order: | Nymphaeales |
| Family: | Nymphaeaceae |
| Genus: | Nymphaea |
| Species: | N. caatingae
|
| Binomial name | |
| Nymphaea caatingae C.T.Lima & Giul.[1]
| |
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| |
| It is endemic to Northeast Brazil[1] | |
Nymphaea caatingae is a species of waterlily endemic to Northeast Brazil.[1]
Description[edit]
Vegetative characteristics[edit]
Nymphaea caatingae is an aquatic herb.[2] It has stoloniferous, subglobose tubers. The floating leaves are attached to the stem by glabrous, non-brittle, 2.3-8 mm wide,green to reddish petioles, which have two primary central air canals, as well as six smaller secondary ones.[3] The leaf blade is ovate, suborbicular to orbicular in shape and has flat and entire margins.[2] The apex of the leathery lamina is obtuse.[3]
Generative characteristics[edit]
Flowering occurs throughout the year.[3] The nocturnal flowers float on the water surface.[2] They have non-brittle, glabrous, brownish peduncles with six central primary air canals and twelve smaller secondary, peripheral ones.[3] There is an abrupt transition from the white petals to stamens and staminodia are absent.[2] The ellipsoid, ruminate, pilose seeds have trichomes arranged in interrupted, longitudinal lines.[2]
Reproduction[edit]
Vegetative reproduction[edit]
Proliferating pseudanthia are present,[2] which enable rapid vegetative reproduction under volatile environmental conditions.[4] Stolons are produced as well, but the proliferating pseudanthia are the main mode of vegetative propagation.[3]
Generative reproduction[edit]
The nocturnal, protogynous flowers last for two days. Autogamy does not occur. Fruit set has only been observed after cross pollination.[3]
Taxonomy[edit]
It was first described by C.T.Lima and Ana Maria Giulietti in 2021.[1]
Type specimen[edit]
The type specimen was collected by C.T. Lima on the 13th of December 2009 in the municipality Itaberaba on the road to Ipirá in the state of Bahia, Brazil.[3]
Placement within Nymphaea[edit]
It is placed in Nymphaea subgenus Hydrocallis. It is morphologically closest to Nymphaea vanildae.[3]
Etymology[edit]
The specific epithet caatingae refers to the Caatinga.[3]
Ecology[edit]
Habitat[edit]
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In the Caatinga, it grows in temporary ponds, and in stagnant water.[3] It is endemic to Brazil and occurs in the Caatinga, as well as the Atlantic rainforest.[2]
References[edit]
- ^ a b c d "Nymphaea caatingae C.T.Lima & Giul". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 8 December 2023.
- ^ a b c d e f g Pellegrini, M. O. O. & Jardim Botânico do Rio de Janeiro. (n.d.). Nymphaea caatingae C.T.Lima & Giul. Flora E Funga Do Brasil. Retrieved December 8, 2023, from https://floradobrasil.jbrj.gov.br/FB623375
- ^ a b c d e f g h i j de Lima, C. T., Machado, I. C., & Giulietti, A. M. (2021). "Nymphaeaceae of Brasil." Sitientibus série Ciências Biológicas, 21.
- ^ de Queiroz, L. P., Cardoso, D., Fernandes, M. F., & Moro, M. F. (2017). "Diversity and evolution of flowering plants of the Caatinga domain." Caatinga: the largest tropical dry forest region in South America, 23-63.