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''Penaea'' is a genus of flowering plants in the family
Penaeaceae The Penaeaceae are a family of evergreen, leathery-leaved shrubs and small trees, native to South Africa. The family has 29 species in 9 genera.Stevens, P. F. (2001 onwards)Penaeaceae.
, found in southern South Africa. They have an unusual type of
embryo sac In seed plants, the ovule is the structure that gives rise to and contains the female reproductive cells. It consists of three parts: the ''integument'', forming its outer layer, the ''nucellus'' (or remnant of the megasporangium), and the fe ...
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 ''Penaea'' is a genus of flowering plants in the family Penaeaceae The Penaeaceae are a family of evergreen, leathery-leaved shrubs and small trees, native to South Africa. The family has 29 species in 9 genera.Stevens, P. F. (2001 onwards)Pen ...
'' Thunb. *'' Penaea acutifolia'' A.Juss. *'' Penaea candolleana'' Stephens *'' Penaea cneorum'' Meerb. *'' Penaea dahlgrenii'' Rourke *'' Penaea dubia'' Stephens *'' Penaea ericifolia'' (A.Juss.) Gilg *''
Penaea ericoides ''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 ...
'' (A.Juss.) Endl. *'' Penaea formosa'' Thunb. *''
Penaea fruticulosa ''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 ...
'' L.f. *'' Penaea fucata'' L. *'' Penaea geneiophora'' Byng & Christenh. *''
Penaea gigantea ''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 ...
'' (R.Dahlgren) Byng & Christenh. *'' Penaea lanceolata'' (R.Dahlgren) Byng & Christenh. *'' Penaea lateriflora'' L.f. *''
Penaea micrantha ''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 ...
'' (R.Dahlgren) Byng & Christenh. *''
Penaea microphylla ''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 ...
'' (Rourke) Byng & Christenh. *''
Penaea mucronata ''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 ...
'' L. *''
Penaea mundii ''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 ...
'' (Sond.) Byng & Christenh. *''
Penaea petraea ''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 ...
'' (W.F.Barker) Byng & Christenh. *''
Penaea retzioides ''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 ...
'' (Sond.) Byng & Christenh. *''
Penaea rupestris ''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 ...
'' (Sond.) Byng & Christenh. *''
Penaea ruscifolia ''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 ...
'' (R.Dahlgren) Byng & Christenh. *''
Penaea sarcocolla ''Penaea sarcocolla'' is a species of shrub in the genus Penaea. It is endemic to the Western Cape, along the coast up to Cape Agulhas and extending inland to Franschhoek, Hottentots Holland Mountains, Villiersdorp Villiersdorp is a town of app ...
'' L. *''
Penaea speciosa ''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 ...
'' (Sond.) Byng & Christenh. *'' Penaea sulcata'' (R.Dahlgren) Byng & Christenh.


References

{{Taxonbar, from=Q9057986 Penaeaceae Myrtales genera