black spots on Java Fern? - Page 2
Tropical Fish

Tropical Fish Keeping - Aquarium fish care and resources » Freshwater Fish and Aquariums » Beginner Freshwater Aquarium » Beginner Planted Aquarium » black spots on Java Fern?

black spots on Java Fern?

This is a discussion on black spots on Java Fern? within the Beginner Planted Aquarium forums, part of the Beginner Freshwater Aquarium category; --> Great! I could use some more java fern!...

Reply
LinkBack Thread Tools vBmenu Seperating Image Search this Thread vBmenu Seperating Image
black spots on Java Fern?
Old 03-01-2012, 05:56 PM   #11
 
thekoimaiden's Avatar
 
Great! I could use some more java fern!
thekoimaiden is offline   Reply With Quote
Old 03-01-2012, 06:45 PM   #12
 
Byron's Avatar
 
This will add my concurrence with what's been said. The blackish "spots" on the underside of leaves of Microsorum pteropus are sori (the plural of the singular sorus), and a sorus is a cluster of sporangia which are the structures containing spores. They are irregular though mostly round, rarely oblong, and about 2mm in size. They lack indusia in this species; indusia is the plural of indusium, and this is the tissue that covers the sorus in some species.

And this is a true fern, as detailed in the profile.
Byron is offline   Reply With Quote
Old 03-02-2012, 05:42 AM   #13
 
Chesh's Avatar
 
So now I know. . . and thank you! NOW I WANT to know this:

Why don't BOTH of my plants, or ALL of the leaves on this one plant have these??!
Chesh is offline   Reply With Quote
Old 03-02-2012, 10:26 AM   #14
 
Byron's Avatar
 
Quote:
Originally Posted by Chesherca View Post
So now I know. . . and thank you! NOW I WANT to know this:

Why don't BOTH of my plants, or ALL of the leaves on this one plant have these??!
I mentioned they are irregular, though in the context of my last post that could easily be taken as referring to their shape; should have been clearer.

They are irregular on the leaf undersides, meaning they will be present in varying numbers depending upon the plant. If you look at the photos included in our profile, you will see a few on some of the leaves.
Byron is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Java Moss and Java Fern iamntbatman Beginner Planted Aquarium 6 02-02-2012 11:35 PM
Can I attatch Java moss or Java fern to a plastic rock formation? Chopstick Chick Beginner Planted Aquarium 4 11-03-2010 07:21 PM
Java Fern? n1zjd Beginner Planted Aquarium 9 01-31-2010 10:24 PM
Java fern... Mating Slinkys Beginner Planted Aquarium 6 10-15-2007 05:17 AM
Java Fern bf2king Beginner Planted Aquarium 6 08-31-2007 01:05 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search



All times are GMT -5. The time now is 09:37 PM.