Penaea


Penaea is a genus of flowering plants in the family Penaeaceae, found in southern South Africa. They have an unusual type of embryo sac development; after two rounds of mitosis, four nuclei are formed at each pole, leading to a mature embryo sac containing four polar groups each with three cells. When found in other taxa, these embryo sacs are termed Penaea-type.

Species

Currently accepted species include:
  • Penaea acuta Thunb.
  • Penaea acutifolia A.Juss.
  • Penaea candolleana Stephens
  • Penaea cneorum Meerb.
  • Penaea dahlgrenii Rourke
  • Penaea dubia Stephens
  • Penaea ericifolia Gilg
  • Penaea ericoides Endl.
  • Penaea formosa Thunb.
  • Penaea fruticulosa L.f.
  • Penaea fucata L.
  • Penaea geneiophora Byng & Christenh.
  • Penaea gigantea Byng & Christenh.
  • Penaea lanceolata Byng & Christenh.
  • Penaea lateriflora L.f.
  • Penaea micrantha Byng & Christenh.
  • Penaea microphylla Byng & Christenh.
  • Penaea mucronata L.
  • Penaea mundii Byng & Christenh.
  • Penaea petraea Byng & Christenh.
  • Penaea retzioides Byng & Christenh.
  • Penaea rupestris Byng & Christenh.
  • Penaea ruscifolia Byng & Christenh.
  • Penaea sarcocolla L.
  • Penaea speciosa Byng & Christenh.
  • Penaea sulcata Byng & Christenh.