Palm-ID
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Trachycarpeae - Rhapidinae
Trachycarpeae - Rhapidinae J. Dransf. et al
certain
von Mohl's classification
:
Cocos-Type
;
Corypha-Type
shape of fibrous part in transverse section
:
Reniforma to Cordata - Complanata
cortex
:
developed
superficial protective layer (sub-epidermal)
:
permanent epidermis
;
suberization and sclerosis of the existing ground parenchyma
tangential elongation and anticlinal divisions of subcortical parenchyma cells
:
absent
fibrous bundles in central cylinder
:
present
;
absent
fibrous ventral cap
:
present (often only in the central part)
;
absent
little fibrous vascular bundles (bridges)
:
absent (poorly developed)
number of phloem strand
:
one strand throughout the central cylinder
;
one strand in the subcortical and transitional zones and two in the central zone of the central cylinder
radial elongation of the fibrous dorsal cap (in subcortical zone)
:
absent
radiating parenchyma
:
present
;
absent
ground parenchyma of the central cylinder
:
spheroid to slightly elongated (length / width < 3–4) cells (∅ < 150 µm) and compact [sometimes few and little lacunae in old stems
ground parenchyma sustained growth
:
absent (Type A)
phytoliths
:
globular echinate to granulate
number of wide metaxylem element per fibrous vascular bundle
:
mostly 3-4
tabular parenchyma
:
present
;
absent
end wall slope
:
slightly oblique
;
transverse
specialisation value
:
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
multicellular epidermal hair
:
absent
epidermal cells
:
elongated (tangentially elongate)
wide metaxylem element
:
present
fibrous dorsal cap centrifugal differentiation
:
absent
metaphloem sieve plate
:
compound
phytoliths distribution in central cylinder
:
all around the dorsal fibrous cap throughout the central cylinder
cortex
cortex
:
developed
multicellular epidermal hair
:
absent
epidermal cells
:
elongated (tangentially elongate)
central cylinder
fibrous bundles in central cylinder
:
present
;
absent
shape of fibrous part in transverse section
:
Reniforma to Cordata - Complanata
little fibrous vascular bundles (bridges)
:
absent (poorly developed)
radiating parenchyma
:
present
;
absent
tabular parenchyma
:
present
;
absent
ground parenchyma of the central cylinder
:
spheroid to slightly elongated (length / width < 3–4) cells (∅ < 150 µm) and compact [sometimes few and little lacunae in old stems
ground parenchyma sustained growth
:
absent (Type A)
superficial protective layer (sub-epidermal)
:
permanent epidermis
;
suberization and sclerosis of the existing ground parenchyma
von Mohl's classification
:
Cocos-Type
;
Corypha-Type
fibrous ventral cap
:
present (often only in the central part)
;
absent
number of wide metaxylem element per fibrous vascular bundle
:
mostly 3-4
number of phloem strand
:
one strand throughout the central cylinder
;
one strand in the subcortical and transitional zones and two in the central zone of the central cylinder
radial elongation of the fibrous dorsal cap (in subcortical zone)
:
absent
phytoliths
:
globular echinate to granulate
end wall slope
:
slightly oblique
;
transverse
specialisation value
:
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 dorsal cap 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 dorsal fibrous cap throughout the central cylinder
fibrous vascular bundle
shape of fibrous part in transverse section
:
Reniforma to Cordata - Complanata
fibrous ventral cap
:
present (often only in the central part)
;
absent
number of wide metaxylem element per fibrous vascular bundle
:
mostly 3-4
number of phloem strand
:
one strand throughout the central cylinder
;
one strand in the subcortical and transitional zones and two in the central zone of the central cylinder
radial elongation of the fibrous dorsal cap (in subcortical zone)
:
absent
tabular parenchyma
:
present
;
absent
end wall slope
:
slightly oblique
;
transverse
specialisation value
:
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 dorsal cap centrifugal differentiation
:
absent
radiating parenchyma
:
present
;
absent
ground parenchyma
ground parenchyma of the central cylinder
:
spheroid to slightly elongated (length / width < 3–4) cells (∅ < 150 µm) and compact [sometimes few and little lacunae in old stems
ground parenchyma sustained growth
:
absent (Type A)
superficial protective layer (sub-epidermal)
:
permanent epidermis
;
suberization and sclerosis of the existing ground parenchyma
tangential elongation and anticlinal divisions of subcortical parenchyma cells
:
absent
numerical
uncertain