The various stages in a hydrosere are well studied in ponds, pools or lakes. The various stages of hydrosere are: (i) Phytoplankton stage, eg, Some blue-green algae, green algae (Volvox), diatoms and bacteria, etc. (ii) Rooted submerged stage, eg Hydrilla, Vallisneria, etc. (iii) Floating stage, eg, Nelumbo, Nymphaea, etc. Some free floating species are Pistia, Azolla, Lemna, etc. (iv) Red-swamp stage, eg, Species of Scirpus, Typha, etc. (v) Sedge-meadow stage, eg, Species of Cyperaceae and Gramineae. (vi) Woodland stage, eg, Lantana, Salix, Populus, etc. (vii) Forest stage, eg, Tropical rain forests, mixed forests of Almus, Acer, Quercus (oak), tropical deciduous forests.
The correct sequence of plants in a hydrosere is
NEET UG 2009 — Botany Ecosystem
2009mcqmedium
The correct sequence of plants in a hydrosere is
Official previous-year question
Held on 30 Apr 2009 · Verified 9 Jul 2026.
Options
- A
Oak → Lantana → Scirpus → Pistia → Hydrilla → Volvox
- B
Volvax → Hydrilla → Pistia → Scirpus → Lantana → Oak
- C
Pistia → Volvox → Scirpus → Hydrilla → Oak → Lantana
- D
Oak → Lantana → Volvox → Hydrilla → Pistia → Scirpus
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