''Penaea'' is a genus of flowering plants in the family
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, 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 ...
''
Thunb.
*''
Penaea acutifolia
''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.
*''
Penaea candolleana
''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 ...
''
Stephens
*''
Penaea cneorum
''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 ...
''
Meerb.
*''
Penaea dahlgrenii
''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
*''
Penaea dubia
''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 ...
''
Stephens
*''
Penaea ericifolia
''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.) 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.
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Penaea formosa''
Thunb.
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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
''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 geneiophora''
Byng & Christenh.
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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.
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Penaea lanceolata''
(R.Dahlgren) Byng & Christenh.
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Penaea lateriflora
''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 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 and Genadendal
Genadendal ...
''
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
''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.
References
{{Taxonbar, from=Q9057986
Penaeaceae
Myrtales genera