I don't work in ecology, but my first thought is that I would not expect any relationship whatsoever between diversity and biomass. Biomass simply means the combined mass of all life on the planet. If that mass consists of one extremely fat goat the size of the moon, or several trillion different organisms doesn't make a difference, mass is mass.
Now, it ...
I think that your talking either about the CONNECTIVE that separates two lobes of the anther making it DITHECOUS or your talking about the LONGITUDINAL GROOVE that I think separates the two theca making it DITHECOUS. Thats all I understand.
Neoteny (/niˈɒtəni/), also called juvenilization, is the delaying or slowing of the physiological (or somatic) development of an organism, typically an animal. Neoteny is found in modern humans. In progenesis (also called paedogenesis), sexual development is accelerated.
Both neoteny and progenesis result in paedomorphism (or paedomorphosis), ...
The prefix para- means beside; adjacent to.
Parasite (from Etymonline):
"a hanger-on, a toady, person who lives on others,"...from Greek
parasitos "one who lives at another's expense, person who eats at the
table of another," especially one who frequents the tables of the
rich and earns his welcome by flattery, from noun use of an adjective