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Monocotyledons / Monocotiledóneas
Ischaemum L.
EOL Text
Annuals or (in ours) perennials. Inflorescence terminal or axillary, of paired (occasionally single or digitate) racemes; racemes interlocked back to back, thereby simulating a single raceme, lacking homogamous pairs and usually exserted, but sometimes enclosed within, a spatheole; internodes and pedicels clavate to inflated, usually exposed on the back of the raceme as a U- or V-shaped segment. Sessile spikelet dorsally flattened; callus obtuse, inserted in the concave top of the internode; lower glume chartaceous to coriaceous, convex (concave in I. afrum), 2-keeled or rounded on the back, entire or 2-lobed; upper glume with or without an awn; lower floret male; upper lemma 2-fid with a glabrous awn from the sinus. Similar in appearance to Andropogon, Ischaemum may technically be separated by the male lower floret and the U-shaped appearance of the internode and pedicel.
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | Mark Hyde, Bart Wursten, Petra Ballings, Flora of Zimbabwe |
Source | http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=237 |
Barcode of Life Data Systems (BOLD) Stats
Specimen Records:31
Specimens with Sequences:30
Specimens with Barcodes:25
Species:9
Species With Barcodes:8
Public Records:18
Public Species:6
Public BINs:0
Ischaemum is a genus of plants in the grass family, widespread in tropical and semitropical regions in many countries.[4][5] Many species are known commonly as murainagrass.[6][7]
- Ischaemum afrum
- Ischaemum agastyamalayanum
- Ischaemum albovillosum
- Ischaemum amethystinum
- Ischaemum anthephoroides
- Ischaemum apricum
- Ischaemum arenosum
- Ischaemum aristatum
- Ischaemum aureum
- Ischaemum australe
- Ischaemum barbatum
- Ischaemum beccarii
- Ischaemum bolei
- Ischaemum bombaiense
- Ischaemum borii
- Ischaemum burmanicum
- Ischaemum byrone - Hilo murainagrass
- Ischaemum cannanorense
- Ischaemum celebicum
- Ischaemum ciliare - batiki bluegrass
- Ischaemum commutatum
- Ischaemum copeanum
- Ischaemum dalzellii
- Ischaemum decumbens
- Ischaemum digitatum
- Ischaemum diplopogon
- Ischaemum eberhardtii
- Ischaemum elimalayanum
- Ischaemum fieldingianum
- Ischaemum flumineum
- Ischaemum fluviatile
- Ischaemum fragile
- Ischaemum glaucescens
- Ischaemum guianense
- Ischaemum hansenii
- Ischaemum heterotrichum
- Ischaemum hubbardii
- Ischaemum huegelii
- Ischaemum impressum
- Ischaemum jayachandranii
- Ischaemum kingii
- Ischaemum koenigii
- Ischaemum koleostachys
- Ischaemum kumarakodiense
- Ischaemum lanatum
- Ischaemum latifolium
- Ischaemum lisboae
- Ischaemum longisetum
- Ischaemum magnum
- Ischaemum malabaricum
- Ischaemum merrillii
- Ischaemum minus
- Ischaemum molle
- Ischaemum murinum
- Ischaemum muticum - seashore centipede grass, drought grass
- Ischaemum nairii
- Ischaemum nativitatis - Christmas Island duck-beak
- Ischaemum pappinisseriense
- Ischaemum philippinense
- Ischaemum polystachyum
- Ischaemum pubescens
- Ischaemum pushpangadanii
- Ischaemum quilonense
- Ischaemum rangacharianum
- Ischaemum raui
- Ischaemum ritchiei
- Ischaemum roseotomentosum
- Ischaemum rugosum - ribbed murainagrass
- Ischaemum santapaui
- Ischaemum semisagittatum
- Ischaemum setaceum
- Ischaemum tenuifolium
- Ischaemum thomsonianum
- Ischaemum timorense - stalkleaf murainagrass, lucuntu grass
- Ischaemum travancorense
- Ischaemum triticeum
- Ischaemum tropicum
- Ischaemum tumidum
- Ischaemum veldkampii
- Ischaemum wayanadense
- Ischaemum yadavii[11]
- formerly included[3]
numerous species now regarded as better suited to other genera: Andropogon Andropterum Apocopis Arundinella Bothriochloa Coelorachis Crypsis Echinochloa Eremochloa Eulaliopsis Kerriochloa Lasiurus Manisuris Microstegium Phacelurus Pogonatherum Polytrias Rhytachne Rottboellia Sehima Stenotaphrum Thuarea Triplopogon Tripsacum Vossia
References[edit]
- ^ lectotype designated by Green, Prop. Brit. Bot.: 193. 1929
- ^ Tropicos, Ischaemum L
- ^ a b c Kew World Checklist of Selected Plant Families
- ^ Linnaeus, Carl von. 1753. Species Plantarum 2: 1049 in Latin
- ^ Catasus Guerra, L. 1997. Las gramíneas (Poaceae) de Cuba, I. Fontqueria 46: [i–ii], 1–259
- ^ Atlas of Living Australia, Ischaemum L.
- ^ Flora of China Vol. 22 Page 609 Ischaemum Linnaeus, Sp. Pl. 2: 1049. 1753
- ^ The Plant List search for Ischaemum
- ^ Pohl, R. W. & G. Davidse. 1994. 158. Ischaemum L. 6: 386–387. In G. Davidse, M. Sousa Sánchez & A.O. Chater (eds.) Flora Mesoamericana. Universidad Nacional Autónoma de México, México, D.F..
- ^ Bor, N. L. 1960. Grass. Burma, Ceylon, India & Pakistan i–767. Pergamon Press, Oxford
- ^ Gad, H. S. and M. K. Janarthanam. (2007). A new species of Ischaemum (Poaceae) from Goa, India. Kew Bulletin 62(3) 499-501.
Media related to Ischaemum at Wikimedia Commons Data related to Ischaemum at Wikispecies
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License | http://creativecommons.org/licenses/by-sa/3.0/ |
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Source | http://en.wikipedia.org/w/index.php?title=Ischaemum&oldid=645927296 |
Perennials, Terrestrial, not aquatic, Stems nodes swollen or brittle, Stems erect or ascending, Stems geniculate, decumbent, or lax, sometimes rooting at nodes, Stems terete, round in cross section, or polygonal, Stems branching above base or distally at nodes, Stem nodes bearded or hairy, Stem internodes solid or spongy, Stem internodes hollow, Stems with inflorescence le ss than 1 m tall, Stems, culms, or scapes exceeding basal leaves, Leaves mostly basal, below middle of stem, Leaves mostly cauline, Leaves conspicuously 2-ranked, distichous, Leaves sheathing at base, Leaf sheath mostly open, or loose, Leaf sheath smooth, glabrous, Leaf sheath and blade differentiated, Leaf blades linear, Leaf blades 2-10 mm wide, Leaf blades 1-2 cm wide, Leaf blades mostly flat, Leaf blades mostly glabrous, Ligule present, Ligule an unfringed eciliate membrane, Inflorescence terminal, Inflorescence a dense slender spike-like panicle or raceme, branches contracted, Inflorescence solitary, with 1 spike, fascicle, glomerule, head, or cluster per stem or culm, Inflorescence a panicle with narrowly racemose or spicate branches, Inflorescence a panicle with digitately arranged spicate branches, Inflorescence with 2-10 branches, Inflorescence branches 1-sided, Inflorescence branches paired or digitate at a single node, Inflorescence branches paired racemes, V-sh aped, Flowers bisexual, Flowers unisexual, Spikelets pedicellate, Spikelets sessile or subsessile, Spikelets dorsally compressed or terete, Spikelet less than 3 mm wide, Spikelets with 2 florets, Spikelets paired at rachis nodes, Spikelets in paired units, 1 sessile, 1 pedicellate, Pedicellate spikelet well developed, staminate, Spikelets bisexual, Spikelets disarticulating below the glumes, Spikelets secund, in rows on one side of rachis, Rachilla or pedicel glabrous, Glumes present, empty bracts, Glumes 2 clearly present, Glumes equal or subequal, Glumes equal to or longer than adjacent lemma, Glumes awned, awn 1-5 mm or longer, Lemmas thin, chartaceous, hyaline, cartilaginous, or membranous, Lemma 1 nerved, Lemma 3 nerved, Lemma 5-7 nerved, Lemma glabrous, Lemma apex dentate, 2-fid, Lemma distinctly awned, more than 2-3 mm, Lemma with 1 awn, Lemma awn 1-2 cm long, Lemma awn from sinus of bifid apex, Lemma awn once geniculate, bent once, Lemma margins thin, lying flat, Lem ma straight, Callus or base of lemma evidently hairy, Callus hairs shorter than lemma, Palea present, well developed, Palea membranous, hyaline, Palea about equal to lemma, Stamens 3, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | Compiled from several sources by Dr. David Bogler, Missouri Botanical Garden in collaboration with the USDA NRCS NPDC |
Source | http://plants.usda.gov/java/profile?symbol=ISCH |