Family: Poaceae
Iseilema
Citation:
Andersson, Nova Acta Soc. Sci. Upsal. ser. 3, 2:250 (1856).
Synonymy: Not Applicable Common name: Flinders-grasses.
Description:
Tufted annuals; leaf blades flat or folded; ligule membranous.
Inflorescence leafy, consisting of groups of apparent spikelets (racemes) subtended by a spathe, 1 or more of such groups subtended by a common spathe, the whole forming a leafy panicle; spikelets of 2 kinds, pedicellate and male or sterile, or very shortly pedicellate and bisexual, arranged in groups of 4 sterile with 1 fertile; sterile spikelets dorsally compressed, with 1 or 2 subequal glumes; fertile spikelets often very shortly pedicellate, with no callus, usually dorsally compressed, first glume flattened, 2-keeled, 3-5-nerved between the keels, 2-toothed, second glume boat-shaped, as long as the first, 3-nerved, first lemma smaller, flat, hyaline, the second (fertile) lemma consisting of a short linear hyaline 1-nerved base ending in a slender bent awn; articulation below sterile spikelets, the whole cluster falling together.
Distribution:
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About 20 species from Indonesia and Australia.
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Biology:
No text
Key to Species:
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1. Sheaths of floral leaves herbaceous, compressed, the 4 involucral spikelets with 2 well developed glumes each |
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2. Racemes slightly exserted from the sheaths; awn 15-18 mm long |
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I. eremaeum 1. |
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2. Racemes quite exserted from the sheaths; awn 12-13 mm long |
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I. vaginiflorum 3. |
Author:
Not yet available
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