Comparative spikelet morphology of Oryza schlechteri pilger and related species of Leersia and Oryza (Poaceae) uri icon

abstract

  • Oryza schlechteri has only recently been rediscovered in Papua New Guinea. This species is quite distinct from other Oryza species but resembles closely related genus Leersia in its small panicle and profusely spreading habit. On the basis of spikelet morphology that has previously been used to distinguish Leersia and Oryza species, O. schlechteri was compared with O. brachyantha. O. longiglumis, O. sativa, L. perrieri, L. tisseranti, and L. hexandra to clarify its generic position. Results corroborate that the presence of a sterile lemma and a striated spikelet epidermal (abaxial) surface lacking siliceous triads in O. schlechteri allies this species with other Oryza species rather than with Leersia.

publication date

  • 1993
  • 1993
  • 1993