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Habitat of C. cordata var. cordata in a quiet park in the Narathiwat province in S. Thailand.
coll. SW s.n.
photo Wongso |
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C. cordata var. cordata is found in many jungle streams in Johore.
coll. CK 63
photo Kettner
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Submerged specimens of C. cordata var. cordata (dark patches) in a quickly flowing stream along a road in Johore, together with Eriocaulon longifolium.
coll. NJM 01-07
photo Jacobsen |
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An almost stagnant stream near the coast in Johore behind a parking place of a restaurant. C. cordata var. cordata (centre) grows loosely rooted in the mud.
coll. B 804
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Growing under the canopy of Sago palms in the Narathiwat province in S Thailand. You would sink to your knees in the mud.
coll. NJT 02-26
photo Jacobsen
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Uprooted plants from Narathiwat. Note the pale green lower side of the leaves.
coll. NJT 02-26
photo Jacobsen
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A quickly running stream al low water with C. cordata var. cordata sheltered behind a fallen tree.
coll. B 797
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Flowering plants in a muddy stream.
coll. NJ 78-57
photo Jacobsen
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You can grow them semi-emersed with the roots submersed in a loose beech tree mould ...
coll.NJM 01-07, cult. NJ
photo Jacobsen
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... and rise or sink the waterlevel as you like. It is a good practise to lay a pebble on the rhizome to fix it when you start.
coll. Scholler s.n., cult. B 1251
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Grown fully submersed in pure beech tree litter, the cordate leaves are almost flat with small dark markings.
coll. Mie 06-01, cult. B1152
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A cultivated plant in a leaf mold from the alder tree (Alnus). This works very well but the mould decomposes fast.
coll. Scholler s.n., cult. Jacobsen
photo Jacobsen
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Upper side of the leaves. Left: cultivated with clay in the beech tree litter substrate, right: with only beech tree litter.
coll. and cult. NJT 02-26
photo Jacobsen |
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Lower side of the leaves.The leaves have grown emerged out of the water.
coll. and cult. NJT 02-26
photo Jacobsen
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This plant is cultivated emersed in a pot with pure beech tree litter. This works for - say - half a year, after the soil is fully decomposed and the plant may collapse.
coll. Kleemann 02-10, cult B 923
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The pioneer Crypts grower in the USA, R.A. Gasser cultivated this plant around 1960. This setup is of course a showcase.
unknown origin, cult. Gasser T82
photo Gasser
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The bright yellow limb of the spathe of C. cordata var. cordata. There is no pronounced collar. Only with special lighting you can see that the limb is a bit more glossy than the collar zone / throat.
coll. & cult. NJM 01-07
photo Jacobsen
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Opened kettle of a fresh spathe of C. cordata var. cordata. The pollen tubes are closed (dark points), the stigma's are upright.
coll. Mie 06-01, cult B1152
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Opened kettle of a two / three days old spathe of C. cordata var. cordata. The pollen is extruded and the styles bent down.
coll. NJ78-57
photo Jacobsen
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An immature fruit of of C. cordata var. cordata. The female flowers are the only part of the spathe that will survive after a successful pollination.
coll. Bogner 1712
photo Bogner
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C. cordata var. cordata from Malacca was posthumous published in 1851 by William Griffith, who died in 1835. Realize that at that time only C. spiralis(1830), C. ciliata (1832) and C. retrospiralis (1841) were known. Read his article in the Document service.
drawing Griffith |
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H.N. Ridley, the first director of the Singapore Botanical Garden, made this drawing in 1929. This plant was also found Malacca, W. Malaysia.
courtesy Kew herbarium
unpublished drawing by H.N. Ridley
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Drawing of C. cordata var. cordata in de Wit 1960b, 1990. The small plant top left is from Johore (Corner s.n.) the other plant is from Pahang (Murdoch 213). The drawing is erroneously presented as var. grabowskii from Borneo.
drawing Ike Zewald |
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Distribution of C. cordata var. cordata in W.
Malaysia and southern Thailand. Much fieldwork had to be done to resolve the questions about
the different var's in C. cordata.
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