Friday, 23 February 2018

Handedness in winged seeds

Winged seeds of Swietenia macrophylla (on the right) and Sterculia (possibly foetida) on the left.

Both species seem to show both left handed and right handed spiralling while coming down, which is reflected in their structure too. The spiral would possibly reflect in the symmetry of the other floral parts too. 

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in good faith, krishna mb.
making free time is culture!

Wednesday, 14 February 2018

The decline of shorebirds in Bangalore




-
in good faith, krishna mb.
making free time is culture!

The decline of shorebirds in Bangalore



-
in good faith, krishna mb.
making free time is culture!

Fresh water inundation tolerant trees

Many of the riverbank species have been used successfully for afforesting foreshores subject to inundation. So riverbank species has been listed with the hope that with further trials, more species could be found useful for the purpose. The ability of species which essentially grow in such habitats in the wet forest ares, to grow in dry conditions has to be investigated.

Saplings used for foreshore afforestation should be sufficiently tall so that they are not completely submerged in standing water. Planting on raised mounds would also be helpful. If cuttings are used, they should be large sized as in for example, Salix.

Acacia nilotica
Ailanthus altissima
Anthocephalus cadamba
Bambusa species
Barringtonia acutangula
Casuarina glauca
Casuarina equisetifolia
Eucalyptus camaldulensis
Eucalyptus microtheca
Eucalyptus robusta
Ficus benjamina
Ficus glomerata
Hibiscus tiliaceus
Lagerstroemia speciosa
Mangifera indica
Melaleuca quinquenervia
Myristica canerica
Myristica magnifica
Pithecellobium dulce
Pongamia pinnata
Populus euphratica
Psidium guajava
Salix tetrasperma
Sesbania sesban
Syzygium cuminii
Tamarix species
Terminalia arjuna

Aegiceros corniculatum
Bridelia retusa
Bridelia zeylanicum
Cerbera manghas
Dolichandrone spathacea
Erythrina indica
Exocaria gallocha
Hopea glabra
Hopea parviflora
Kirganelia reticulata
Lophopetalum wightianum
Madhuca wightianum
Mlastoma species
Nauclea missionis
Stephygne parviflora
Threspesia populnea
Trewia nudiflora
Trewia polycarpa
Vitex negundo
Vitex leucoxylon
Vitex pubescence
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in good faith, krishna mb.
making free time is culture!