fish
inverts
plants
   a
   b
   c
   d
   e
   f
   g
   h
   i
   j
   l
   m
   n
   o
   p
   r
     Ranunculus
     Regnellidium
     Reussia
     Rhaphidophora
     Rhodobryum
     Rhynchospora
     Riccardia
     Riccia
     Ricciocarpus
     Riella
     Rondonanthus
     Rorippa
       aquatica
       dubia
     Rotala
     Ruppia
   s
   t
   u
   v
   w
   x
   z
misc