Apoclada
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| Genus: | Apoclada |
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Apoclada is a genus of bamboo (tribe Bambuseae of the family Poaceae), comprising one species found in the forests of southeastern Brazil. The genus was for many years thought to contain four species (Apoclada cannavieira, A. arenicola, A. diversa & A. simplex)[1] Upon further examination and fieldwork at the collection locality, the single piece of material at the US National Herbarium from which A. diversa had been described, was found to be merely a deformed stem of A. simplex[2] .[3] Later, with revised concepts of morphological interpretation in the bamboos and strong molecular evidence[4] it became clear that the two species formerly known as A. arenicola, and A. cannavieira which are endemic to the cerrado of central Brazil are actually unrelated to A. simplex and are correctly placed in their own genus Filgueirasia.[5]
The stems of this bamboo grow to more than 13 m tall although half that is more common. Like all bamboos, the upright stems (also called culms) grow from horizontal underground stems called rhizomes. In A. simplex these rhizomes can be more than 40 cm long, thus although this species is technically a clumping type of bamboo, groves of it often appear much like those of the Asian running bamboos because of the long distance between culms. The culms are light to dark green or sometimes reddish, and about 1.9–4 cm in diameter with internodes every 7–38 cm. The foliage leaf blades are long and thin, 1.3–16.4 cm long and 2–7 mm wide.
See also
References
- ^ McClure, F. 1973. Genera of Bamboos Native to the New World(Gramineae: Bambusoideae). Smithsonian Contributions to Botany 9: 1–148.
- ^ Guala, G.F. 1992. All About Apoclada (Poaceae: Bambusoideae) a monograph of the genus. Thesis presented to the Graduate School of the University of Florida.
- ^ Guala, G.F. 1995 A cladistic analysis and revision of the genus Apoclada (Poaceae:Bambusoideae). Systematic Botany 20(3): 207–223
- ^ Guala, G.F., D. Bogler, J. Sadle and J. Francisco Ortega 2000. Molecular Evidence for polyphyly in the genus Apoclada (Poaceae: Bambusoideae). Bamboo Science and Culture 14:(1): 15–20.
- ^ Guala, G.F. 2003. A new genus of bamboos from the cerrados of Brazil. Bamboo Science and Culture 17(1): 1–3
External links
- Guala, G.F. 2003. A new genus of bamboos from the cerrados of Brazil. Bamboo Science and Culture 17(1): 1-3.
- Guala, G.F., D. Bogler, J. Sadle and J. Francisco Ortega 2000. Molecular Evidence for polyphyly in the genus Apoclada (Poaceae: Bambusoideae). Bamboo Science and Culture 14:(1): 15-20.
- A photo of Apoclada simplex near Cacador, Brazil.
- A photo of the upper (adaxial) leaf surface of Apoclada simplex taken with a scanning electron microscope.
