MWP Quiz 55 (For User "Sigra")

Some fun for the hard working botanists and green fingered. A sort of posting Quiz and educative posts. N-Joi...

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MWP Quiz 55 (For User "Sigra")

Post by MWP admin » Mon Oct 20, 2008 7:49 pm

Lets see how this quiz goes... dedicated for our new user - 'Sigra'
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Post by Sigra » Mon Oct 20, 2008 10:18 pm

Ohh !

Never before a quiz was dedicate to me. Grazzi hafna Stephen.

Now, I shoulld think that’s some kind of a casuarina?
Is it?

Good night to everybody
Sigra

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Post by jackpot » Tue Oct 21, 2008 9:16 am

he he- Sigra seems to be a new expert!

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Post by MWP admin » Tue Oct 21, 2008 8:12 pm

Congratulations - a male specimen.

PS.
I still find difficulty to distinguish betwen C. equisetifolia and C. cunninghamiana.

Moreover, in San Antoon there is also a certain Casuarina stricta - a misidentification or synonym?
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Post by Sigra » Thu Oct 23, 2008 4:37 pm

MWP admin wrote: PS.
I still find difficulty to distinguish betwen C. equisetifolia and C. cunninghamiana.
Moreover, in San Antoon there is also a certain Casuarina stricta - a misidentification or synonym?

According to “Ornamental Plants of Malta”:

C. cunninghamiana is similar to C. equisetifolia but the cone-like fruits are shorter, globular, only about 1cm long (C. equisetifolia fruits 1.5-2cm)

Casuarina stricta (label in San Anton Gardens) in OPM it is Allocasuarina verticillata. The plant can be distinguished from the Casuarinas by the sharp beaks of the cone-like fruit and shiny black seeds.
---------------------------------------------

In general: To distinguish different species from the same gender - at least with trees (don’t know about other plants) you very often take the fruits.
Therefore, if a tree-specialist is asked to name a tree with many similar species the reply often is: “I’m very busy in the next time, and then I have ……. and therefore I will come sometime in autumn!”

Sigra

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Post by jackpot » Fri Oct 24, 2008 9:56 am

:D jackpot is very happy about the use of the "Ornamental Plants of Malta" :-D

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Post by MWP admin » Sat Oct 25, 2008 8:40 am

But what shall I do when it is a male tree like the one in the quiz ? !!!!!!
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Post by MWP admin » Sun Oct 26, 2008 10:50 am

...and regards the female trees I have a little excercise for Sigra, JP, RB and other based on the fruit.

Can you identify A,B,C from the image below against a metric scale (perhaps using OPM)?

According to my analysis:

A = 10.4 - 11.5 (1.1cm) globular
B (left) = 8.3 - 9.9 (1.6cm) cylidrical
C (left) = 5.4 - 7.0 (1.6cm) globular
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Post by MWP admin » Thu Oct 30, 2008 8:26 pm

Hello ?? Sigra ??
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Post by Sigra » Thu Oct 30, 2008 10:59 pm

Hi Stephen,

I do agree with your analysis.
But I can’t tell you more about it.

Sigra

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Post by MWP admin » Fri Oct 31, 2008 8:15 pm

So it seems you also confrm my first comment that I wrote :-
"I still have difficult to distinguish Causarina species" :lol:
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Post by MWP admin » Sat Nov 01, 2008 8:10 am

According the book Ornamental Plants of Malta

A: rounded fruit, 1cm long should be C. cunninghamiana

B: cylindrical fruit, 1.6cm = C. equisetifolia (unless the beaks are considered sharp and thereforo Casuarina verticillata)

C: rounded but still over 1.5cm = C. equisetifolia

Do you agree ?
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Post by Sigra » Sun Nov 02, 2008 4:44 pm

Iva, kollox sewwa.
This is the logical conclusion (the only trouble is that nature doesn’t always follow our logical conclusions) of your analysis and the OPM-description.
Additionally you could have a look at the seeds.
C. equisetifolia = brownish winged seeds
C. verticillata = shiny black seeds.

Sigra

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