Ovo je kljuc pomocu kojeg moze da se identifikuju vrste biljaka iz roda Echinodorus. Ovaj kljuc je baziran na radu Dr. Karel Rataj i smatra se trenutno vazecim kljucem. Napomenuo sam da je Dr. Karel Rataj objavio novu sistematiku ovog roda ali dok se to ne usvoji ovo i dalje vazi.
U novoj sistematici je dodato jos vrsta i nekoliko podvrsta na osnovu nekih detalja. Drugim recima pojedine sadasnje vrste su podeljene na neke nove vrste.
Da sada ne citiram kompletno izlaganje dodacu samo nekoliko vaznih stvari za odredjivanje vrste.
Biljka mora da je zasadjena u vodi i da se dopusti da izadje i van vode, da razvije cvet i plod. Bez toga je ponekada nemoguce da se odredi vrsta.
Jedna te ista vrsta moze da pokaze razlicite karaktere u zavisnosti od uslova, recimo temperature ili dubine akvarijuma. Iz tog razloga se i zahteva da se biljka gaji kako je gore navedeno i kada procveta onda pokazuje standardne karakteristike i SAMO U TOM SLUCAJU je moguca identifikacija.
Eto to bi bilo u vezi te identifikacije pa se nadam da cemo sada malo drugacije da gledamo a ujedno i procenjujemo o kojoj se vrsti biljke radi pogotovo kada vidimo neku sliku.
Srecna identifikacija biljaka
U novoj sistematici je dodato jos vrsta i nekoliko podvrsta na osnovu nekih detalja. Drugim recima pojedine sadasnje vrste su podeljene na neke nove vrste.
Da sada ne citiram kompletno izlaganje dodacu samo nekoliko vaznih stvari za odredjivanje vrste.
Biljka mora da je zasadjena u vodi i da se dopusti da izadje i van vode, da razvije cvet i plod. Bez toga je ponekada nemoguce da se odredi vrsta.
Jedna te ista vrsta moze da pokaze razlicite karaktere u zavisnosti od uslova, recimo temperature ili dubine akvarijuma. Iz tog razloga se i zahteva da se biljka gaji kako je gore navedeno i kada procveta onda pokazuje standardne karakteristike i SAMO U TOM SLUCAJU je moguca identifikacija.
Eto to bi bilo u vezi te identifikacije pa se nadam da cemo sada malo drugacije da gledamo a ujedno i procenjujemo o kojoj se vrsti biljke radi pogotovo kada vidimo neku sliku.
Srecna identifikacija biljaka
Code:
Key to Echinodorus Species
1a Leaves ribbon-like, several times longer than wide, but not more
than 20 mm Wide; flowers with 6 to 9 stamens, propagated by root runners .... 2
1b Leaves not ribbon-like, blades wider than 20 mm, the flowers with more
than 9 stamens.............................................................. 5
2a Submersed leaves lanceolate, generally wider than 15 mm, 5 to 10 times
longer than wide ............................................ E. quadricostatus
2b Submersed leaves narrower than 15 mm, usually 10 to 30 times longer
than wide ....................................................................3
3a Leaves usually only 25 to 50 mm long, not more than 75 mm long .....E. tenellus
3b Leaves more than 5 cm long ...................................................4
4a Leaves 5 to 15 cm long, about 10 mm wide .........................E. latifolius
4b Leaves 20 to 40 cm long, not more than 10 mm wide .............E. angustifolius
5a Plants develop only submersed leaves and do not grow out above the surface of
the water; leaf blades much longer than wide, lateral veins connected with midrib
some inches above the blade base .............................................6
5b The plant develops, in a good light, floating or emergent leaves, as well as
submersed leaves; blades not more than twice as long as wide; all main veins
directed towards the blade base ..............................................12
6a Leaf margin undulate, blade apex blunt or rounded ............................9
6b Leaf margin flat, blade tapered ...............................................7
7a Leaves not more than 3 or 4 times longer than wide, base sometimes cordately
incised or truncate ...............................................E. parviflorus
7b Leaves at least 6 times longer than wide, the base tapering to the petiole,
blades arched, recurved, not more than 30 mm wide .............................8
8a Blades arch-like recurved, max. 30 mm wide....................... E. amazonicus
8b Blades not curved, 30 to 50 mm wide ..................................E. bleheri
9a Leaves green .................................................................10
9b Leaves reddish, red-brown to black-brown ....................................11
10a Leaves light green, dull; usually narrower in the lower third, widening towards
the apex ..............................................................E. maior
10b Leaves dark olive-green, very glossy; regularly tapering towards base
and apex, widest in the middle ....................................E. horemanii
lla Leaf blades 40 to 50 mm wide; young leaves bright red, older leaves dark
brown-green ........................................................ E. osiris
l1b Leaf blades not more than 30 mm wide; young leaves red-black, older leaves
red-brown .....................................................E. uruguayensis
12a Submersed leaves may take many shapes (multiform), some ribbon-like, others
narrowly to broadly lanceolate or cordate to rounded; floating, emersed leaves
ovate, cordately incised .......................................... E. berteroi
12b Submersed leaves uniform ..................................................13
13a Leaf blade heart-shaped, pointed at the apex ................................14
13b Leaf blade not pointed, blunt at the apex ...................................15
14a Leaf blades at an obtuse angle to the petiole, almost hori
zontal .......................................................... E. horizontals
14b Leaf blades not at an angle to the petiole but continue in the same direction
as the petiole .......................................................E. opacus
15a Blades ovate, tapering to the petiole, 2 or 3 times longer than wide,
eventually tapering to the apex as well as to the base .....................16
15b Blades cordate, lobate at the base, usually only a little longer than wide ..17
16a Blades 15 to 30 cm long, usually broadly oval .................E. argentinensis
16b Blades not more than 10 cm long, lanceolate, often spotted
red-brown ........................................................E. pellucidus
17a Leaf margins not undulate, leaves nearly rounded ................E. longiscapus
17b Leaf margins undulate, leaves cordate with blunt apex ......................18
18a No pellucid markings on the leaf blades (there being two species,
distinguishable only in the emersed form) ....................................19
18b Discernible, long pellucid lines in the blades of emersed as
submersed leaves ..................................................E. cordijolius
19a Blades of emersed plants cordate to triangular, with short points;
achenes with a large number of glandules
(i.e., visible organs of secretion) ...............................E. macrophyllus
19b Blades of emersed plants ovate, incised at the apex;
achenes with 3 glandules ...............................................E. scaber
