Killi
curve
Aponogetons of Australia

Aponogeton bullosus

Aponogeton bullosus

Extrmely rare Australian Aponogeton.


Aponogeton

Aponogeton cuneatus

Thought previously to be a form of elongatus, which is differs from only in minor petal morphology.

"A. cuneatus is superficially similar to A. elongatus, but a conspicuous difference exists in the shape of the outer flower segments, with A. cuneatus having wedge-shaped tepals and A. elongatus having spatula-shaped tepals."
(Jacobs et al. 2006; DEWHA 2008)


Aponogeton kimberleyensis

Aponogeton elongatus

Fairly cosmopolitan in the Indo-Pacific area this Aponogeton is also found in Australia.


Aponogeton euyspermus

Aponogeton euryspermus

Another Australian Aponogeton.


Aponogeton kimberleyensis

Aponogeton hexatepalus

Australian Aponogeton.


Aponogeton kimberleyensis

Aponogeton kimberleyensis


Aponogeton lancesmithii

Aponogeton lancesmithii

Australian Aponogeton.


Aponogeton proliferus

Aponogeton proliferus

Rare, unknown location, apparantly prolific livebeating Aponogeton found only in a few streams in north and west Australia. Would make a stunning aquarium plant.


Aponogeton queenslandicus

Aponogeton queenslandicus

An Aponogeton from - you guessed it: Queensland Australia.


Aponogeton torfus

Aponogeton torfus

Newly described in 2005. Good aquarium plant. Available only in Australia and so far nor exported. As of this writing (2007) efforts are underway for exportation of Australian Aponogetons, but the wheels of the guvmint move (very) slowly.


Aponogeton vanbruggeni

Aponogeton vanbruggenii

Van Bruggen's Aponogeton


Key to the Australian Aponogeton species.

Per S.W. L. Jacobs Telopea 11(2): 2006
(note: distachys has been introduced to Australia as included here to make it a practical field guide.
1.Proliferous offshoots formed at tip of peduncle; plants rarely flowering1. A. proliferus
1* Proliferous offshoots not formed on plants; plants regularly flowering 2
2. Inflorescence branched with two spikes3
2* Inflorescence unbranched with one spike 5
3. Flowers white (rarely pink); tepals 1, with 13 or more veins2. A. distachyos
3* Flowers yellow, yellow-green, or green; tepals 26, 1-veined4
4. Tepals 6; seeds (2.6)5.16.2(7.0) mm long; leaves all floating 3. A. hexatepalus
4* Tepals 2; seeds 2.13.2 mm long; leaves all submersed4. A. lancesmithii
5. Leaves all submersed, slightly to strongly bullate6
5* Leaves submersed and/or floating, not bullate7
6. Spathe persistent, to 2.5 cm long; inflorescence to 5.5 cm long; peduncle about same diameter as inflorescence rachis5. A. bullosus
6* Spathe caducous, to 1.5 cm long; inflorescence to 34 cm long; peduncle much broader than inflorescence rachis4. A. lancesmithii
7. Plants mainly producing floating leaves; floating blades mostly cordate at base; seeds with obvious double testa6. A. queenslandicus
7* Plants mainly producing submersed leaves or submersed and floating leaves; floating blades mostly obtuse, some cuneate or truncate at base; seeds with a single testa or, if double, the second seed coat closely adhering and difficult to detect8
8. Submersed leaves narrow, 0.93 mm wide; seeds 0.71.4 mm long7. A. kimberleyensis
8* Submersed leaves broad, 560 mm wide; seeds 1.24.9 mm long9
9. Fruit oval and thick-coated; seed coat closely adhering to embryo and difficult to detect, or tightly-fitting and very thin; floating leaves rarely formed10. A. elongatus
9* Fruit elliptic and papery; seeds with a loose outer coat, easily separated from embryo; floating leaves commonly formed 10
10. Seeds broadly elliptic, nearly oval, (1.1)1.52.8 mm wide8. A. euryspermus
10* Seeds narrowly elliptic, 0.71.6 mm wide9. A. vanbruggenii








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