Tuesday, April 26, 2016

Vitex vestita: A Rare Glimpse in the Shadow of Giants in MacRitchie Forest

While Vitex pinnata is a familiar tree found almost everywhere in Singapore, and even lend its vernacular name to Jalan Leban (off Thomson Road), her little sister Vitex vestita is exceptionally rare, occurring primarily in the shadow of our Dipterocarp giants in MacRitchie forest.
Here is a rare glimpse for you! : )




Beautiful MacRitchie Forest


Leaflets dancing with the occasional sunbeam


Inflorescences


Zygomorphic flower

Fruits turning from green to yellow to red

Hairs on the underside of leaflets


Smooth scaly bark

Monday, April 18, 2016

Helicia petiolatus: A Rare Gem in MacRitchie Forest

A Day with Helicia petiolatus


Darkness robs the canopy of its depth
And the sharp edge gleans a silhouette
With telling tails of tales
That shines a light on suggested eons
Marching past the continental drift
Moved me to this spot
Afoot
A point of Biogeography
A wink through window chink
so fast changed O Protea




Understorey view


Tantalizing tail of tales


Anthesis defined


A young inflorescence at last! Proteaceae!


Leaves turning a yellow clue.


Long leaf stalks - petioles - with swollen ends.


Smooth lenticellated bark.


Leaves dead but telling... turning silvery brown above but dark brown below.

Sunday, March 27, 2016

Alseodaphne nigrescens in MacRitchie Forest: Extinct No More

Needless to say, the more we are out there ground truthing, the more likely we are of discovering and learning new things. One unforgettable 'Aha' moment of mine in MacRitchie forest - a long-thought extinct species - Alseodaphne nigrescens - rediscovered 2014.


Leaves drying jet-black. Peduncle swollen and red, deceivingly fruit-like. There are a few trees in MacRtichie forest.








Wednesday, March 16, 2016

A Spectacular Display of Fruits at MacRitchie Rain Forest

Come every June, there is a rhapsody in the air singing regeneration! May they grow and prosper!



Baccaurea griffithii - a rare sight!






Baccaurea racemosa - cauliflorous display of fruits

Baccaurea racemosa - blue jacketed seeds

Dacryotes laxa

Dacryotes laxa - ramiflorous display of hanging fruits

Garcinia nervosa - ramiflorous display of fruits

Garcinia forbesii

Horsfieldia superba - ramiflorous display of fruits

Horsfieldia superba

Dysoxylum cauliflorum - cauliflorous display of fruits

Xylopia malayana - fruit flips inside-out by self-action to expose seeds
Xylopia malayana - obscure green fruits ready to flip!

Thursday, March 10, 2016

Ryparosa scortechinii: Philosophically at MacRitchie Forest

This species was once regarded as being survived by only 2 remnant trees in the 6-hectare Rain Forest in Singapore Botanic Garden. However, I found a few small to large trees in MacRitchie over the years.


It was quite unfortunate then that not long ago I found one of 'my tree, my old friend' knocked down by a  neighbouring giant. 'A Ryparosa scortechinii killed by a Calophyllum teysmannii', I mused morbidly. The question about reality felled on me at that moment. Only I knew... probably... if a tree falls in a forest and no one is around to hear it, does it make a sound?


Now you know. Here's the fruits and photos of my tree, my old friend... it's real.










Wednesday, March 9, 2016

Ailanthus integrifolia: Born to Fly

Presently found in MacRitchie forest, Ailanthus integrifolia is one of the rarest native emergent trees in Singapore today. It has a smooth bole that appears brilliant white from afar. Also impressive are its large winged fruits. Related to Tongkat Ali in the family Simaroubaceae.




 

Monday, March 7, 2016

Cyathea trichodesma: a new record found in MacRitchie wetland

A relatively recent 2009 discovery by Dr Benito Tan et al - Cyathea trichodesma - a tree fern species of freshwater habitat found in the stream valleys of Macritchie wetland.