Ceroxyloideae
Ceroxyloideae Drude
(except Phytelephas Ruiz & Pav.)
Ceroxyloideae Drude (except Phytelephas)
Ceroxyloideae Drude (except Phytelephas)
Ceroxyloideae Drude (except Phytelephas)
Ceroxyloideae Drude (except Phytelephas)
Ceroxyloideae Drude (except Phytelephas)
Ceroxyloideae Drude (except Phytelephas)
Ceroxyloideae Drude (except Phytelephas)
Ceroxyloideae Drude (except Phytelephas)
Ceroxyloideae Drude (except Phytelephas)
Ceroxyloideae Drude (except Phytelephas)
Ceroxyloideae Drude (except Phytelephas)
certain
- von Mohl's classification : Mauritia-Type
- shape of fibrous part in transverse section : Reniforma to Cordata - Complanata
- cortex : very thin
- superficial protective layer (sub-epidermal) : permanent epidermis ; developed etagen meristem (alignment of more than 10 cells)
- tangential elongation and anticlinal divisions of subcortical parenchyma cells : present ; absent
- fibrous bundles in central cylinder : absent
- fibrous ventral cap : absent
- little fibrous vascular bundles (bridges) : absent (poorly developed)
- number of phloem strand : one strand throughout the central cylinder
- radial elongation of the fibrous dorsal cap (in subcortical zone) : absent
- radiating parenchyma : absent
- ground parenchyma of the central cylinder : huge cells (∅ > 150 µm) [potential few and irregular lacunae] ; appendicular parenchyma connecting fvb
- ground parenchyma sustained growth : present (Type B)
- phytoliths : globular echinate to granulate
- number of wide metaxylem element per fibrous vascular bundle : mostly 2 (3-4) ; 1 in the the subcortical zone and the zone of transition AND 2 in the central zone
- tabular parenchyma : absent
- end wall slope : extremely oblique ; very oblique ; oblique ; slightly oblique
- specialisation value : 1 to ≤ 2 vessel-parenchyma pits">[2] multiple perforation plates with "narrow" perforations that span >1 to ≤ 2 vessel-parenchyma pits ; 2 to ≤ 5 vessel-parenchyma pits">[3] multiple perforation plates with "medium size" perforations that span >2 to ≤ 5 vessel-parenchyma pits ; 5 vessel-parenchyma pits, or with ≤ 3 bars">[4] multiple perforation plates with "wide" perforations that span >5 vessel-parenchyma pits, or with ≤ 3 bars
- multicellular epidermal hair : absent
- epidermal cells : erect (radially elongate)
- wide metaxylem element : present
- fibrous dorsal cap centrifugal differentiation : present
- metaphloem sieve plate : compound
- phytoliths distribution in central cylinder : largely restricted to the fvb of the subcortical zone in contact with the cortex
cortex
- cortex : very thin
- multicellular epidermal hair : absent
- epidermal cells : erect (radially elongate)
central cylinder
- fibrous bundles in central cylinder : absent
- shape of fibrous part in transverse section : Reniforma to Cordata - Complanata
- little fibrous vascular bundles (bridges) : absent (poorly developed)
- radiating parenchyma : absent
- tabular parenchyma : absent
- ground parenchyma of the central cylinder : huge cells (∅ > 150 µm) [potential few and irregular lacunae] ; appendicular parenchyma connecting fvb
- ground parenchyma sustained growth : present (Type B)
- superficial protective layer (sub-epidermal) : permanent epidermis ; developed etagen meristem (alignment of more than 10 cells)
- von Mohl's classification : Mauritia-Type
- fibrous ventral cap : absent
- number of wide metaxylem element per fibrous vascular bundle : mostly 2 (3-4) ; 1 in the the subcortical zone and the zone of transition AND 2 in the central zone
- number of phloem strand : one strand throughout the central cylinder
- radial elongation of the fibrous dorsal cap (in subcortical zone) : absent
- phytoliths : globular echinate to granulate
- end wall slope : extremely oblique ; very oblique ; oblique ; slightly oblique
- specialisation value : 1 to ≤ 2 vessel-parenchyma pits">[2] multiple perforation plates with "narrow" perforations that span >1 to ≤ 2 vessel-parenchyma pits ; 2 to ≤ 5 vessel-parenchyma pits">[3] multiple perforation plates with "medium size" perforations that span >2 to ≤ 5 vessel-parenchyma pits ; 5 vessel-parenchyma pits, or with ≤ 3 bars">[4] multiple perforation plates with "wide" perforations that span >5 vessel-parenchyma pits, or with ≤ 3 bars
- fibrous dorsal cap centrifugal differentiation : present
- wide metaxylem element : present
- tangential elongation and anticlinal divisions of subcortical parenchyma cells : present ; absent
- metaphloem sieve plate : compound
- phytoliths distribution in central cylinder : largely restricted to the fvb of the subcortical zone in contact with the cortex
fibrous vascular bundle
- shape of fibrous part in transverse section : Reniforma to Cordata - Complanata
- fibrous ventral cap : absent
- number of wide metaxylem element per fibrous vascular bundle : mostly 2 (3-4) ; 1 in the the subcortical zone and the zone of transition AND 2 in the central zone
- number of phloem strand : one strand throughout the central cylinder
- radial elongation of the fibrous dorsal cap (in subcortical zone) : absent
- tabular parenchyma : absent
- end wall slope : extremely oblique ; very oblique ; oblique ; slightly oblique
- specialisation value : 1 to ≤ 2 vessel-parenchyma pits">[2] multiple perforation plates with "narrow" perforations that span >1 to ≤ 2 vessel-parenchyma pits ; 2 to ≤ 5 vessel-parenchyma pits">[3] multiple perforation plates with "medium size" perforations that span >2 to ≤ 5 vessel-parenchyma pits ; 5 vessel-parenchyma pits, or with ≤ 3 bars">[4] multiple perforation plates with "wide" perforations that span >5 vessel-parenchyma pits, or with ≤ 3 bars
- metaphloem sieve plate : compound
- wide metaxylem element : present
- fibrous dorsal cap centrifugal differentiation : present
- radiating parenchyma : absent
ground parenchyma
- ground parenchyma of the central cylinder : huge cells (∅ > 150 µm) [potential few and irregular lacunae] ; appendicular parenchyma connecting fvb
- ground parenchyma sustained growth : present (Type B)
- superficial protective layer (sub-epidermal) : permanent epidermis ; developed etagen meristem (alignment of more than 10 cells)
- tangential elongation and anticlinal divisions of subcortical parenchyma cells : present ; absent