Cryosophileae - Zombia
Cryosophileae J. Dransf. et al.
Cryosophileae J. Dransf. et al.
Cryosophileae J. Dransf. et al.
Cryosophileae J. Dransf. et al.
Cryosophileae J. Dransf. et al.
Cryosophileae J. Dransf. et al.
Cryosophileae J. Dransf. et al.
Cryosophileae J. Dransf. et al.
Cryosophileae J. Dransf. et al.
Cryosophileae J. Dransf. et al.
Cryosophileae J. Dransf. et al.
Cryosophileae J. Dransf. et al.
Cryosophileae J. Dransf. et al.
Cryosophileae J. Dransf. et al.
Cryosophileae J. Dransf. et al.
Cryosophileae J. Dransf. et al.
Cryosophileae J. Dransf. et al.
Cryosophileae J. Dransf. et al.
Cryosophileae J. Dransf. et al.
informative descriptor
- general stem pattern (ex-von Mohl's classification) : Cocos-Type
- shape of fibrous part in transverse section : Vaginata
- cortex : developed
- superficial protective layer (sub-epidermal) : suberization and sclerosis of the existing ground parenchyma
- tangential elongation and anticlinal divisions of subcortical parenchyma cells : absent
- fibrous bundles in central cylinder : absent
- fibrous part adjacent to the xylem : present (often only in the central zone)
- little fibrous vascular bundles (bridges) : present (well developed)
- number of phloem strand : one strand throughout the central cylinder
- radial elongation of the fibrous part (in subcortical zone) : absent
- radiating parenchyma : present
- ground parenchyma of the central cylinder : cells slightly elongated (length / width < 3–4), lobed with a random (rhombohedral) shape (maximal length < 200 µm) and irregular meshwork (lacunae < 200 µm)
- ground parenchyma sustained growth : absent (Type A) ; present (Type B)
- phytoliths : globular echinate to granulate
- number of wide metaxylem element per fibrous vascular bundle : mostly 3-4 ; more than 4
- tabular parenchyma : present
- end wall slope : oblique ; slightly oblique
- specialisation value : 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 ; [5] mixture of multiples perforation plates (as in #4) and simple perforation plates
- wide metaxylem element : present
- fibrous part centrifugal differentiation : absent
- metaphloem sieve plate : compound
- phytoliths distribution in central cylinder : all around the fibrous part adjacent to the phloem throughout the central cylinder
- identification within "subfamily" or "tribe" : in all palm family ; subfamily Coryphoideae ; tribe Cryosophileae ; without Arecoideae
cortex
central cylinder
- fibrous bundles in central cylinder : absent
- shape of fibrous part in transverse section : Vaginata
- little fibrous vascular bundles (bridges) : present (well developed)
- radiating parenchyma : present
- tabular parenchyma : present
- paravascular parenchyma : poorly developed or one layer of circumvascular cells
- ground parenchyma of the central cylinder : cells slightly elongated (length / width < 3–4), lobed with a random (rhombohedral) shape (maximal length < 200 µm) and irregular meshwork (lacunae < 200 µm)
- ground parenchyma sustained growth : absent (Type A) ; present (Type B)
- superficial protective layer (sub-epidermal) : suberization and sclerosis of the existing ground parenchyma
- general stem pattern (ex-von Mohl's classification) : Cocos-Type
- median sinus : rounded
- fibrous part adjacent to the xylem : present (often only in the central zone)
- number of wide metaxylem element per fibrous vascular bundle : mostly 3-4 ; more than 4
- number of phloem strand : one strand throughout the central cylinder
- radial elongation of the fibrous part (in subcortical zone) : absent
- phytoliths : globular echinate to granulate
- Tomlinson's end wall type : moderately specialized
- end wall slope : oblique ; slightly oblique
- range of slope index (min_m_max) : 3 – 3,76 – 4,33
- specialisation value : 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 ; [5] mixture of multiples perforation plates (as in #4) and simple perforation plates
- fibrous part centrifugal differentiation : absent
- wide metaxylem element : present
- tangential elongation and anticlinal divisions of subcortical parenchyma cells : absent
- metaphloem sieve plate : compound
- phytoliths distribution in central cylinder : all around the fibrous part adjacent to the phloem throughout the central cylinder
fibrous vascular bundle
- shape of fibrous part in transverse section : Vaginata
- fibrous part adjacent to the xylem : present (often only in the central zone)
- number of wide metaxylem element per fibrous vascular bundle : mostly 3-4 ; more than 4
- number of phloem strand : one strand throughout the central cylinder
- radial elongation of the fibrous part (in subcortical zone) : absent
- paravascular parenchyma : poorly developed or one layer of circumvascular cells
- median sinus : rounded
- tabular parenchyma : present
- Tomlinson's end wall type : moderately specialized
- end wall slope : oblique ; slightly oblique
- range of slope index (min_m_max) : 3 – 3,76 – 4,33
- specialisation value : 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 ; [5] mixture of multiples perforation plates (as in #4) and simple perforation plates
- metaphloem sieve plate : compound
- wide metaxylem element : present
- fibrous part centrifugal differentiation : absent
- radiating parenchyma : present
ground parenchyma
- ground parenchyma of the central cylinder : cells slightly elongated (length / width < 3–4), lobed with a random (rhombohedral) shape (maximal length < 200 µm) and irregular meshwork (lacunae < 200 µm)
- ground parenchyma sustained growth : absent (Type A) ; present (Type B)
- superficial protective layer (sub-epidermal) : suberization and sclerosis of the existing ground parenchyma
- tangential elongation and anticlinal divisions of subcortical parenchyma cells : absent