| 词条 | Melica porteri |
| 释义 |
|image= |genus=Melica |species=porteri |authority=Scribn. }}Melica porteri, known as Porter's melicgrass, is a species of grass that grows in the United States and Mexico. In the US it is found in Arizona, Colorado, Kansas, New Mexico, Texas, Utah,[1] and Iowa.[2][3] DescriptionThe species is perennial and caespitose, which is clumped as well. It have short rhizomes with slender culms that are {{convert|50|–|100|cm}} long. The species' leaf-sheaths are tubular, scaberulous and smooth with one of their length being closed. It eciliate membrane is {{convert|3|–|7|mm}} long and have a glabrous surface that is also pubescent. Just like eciliate membrane, the surface of leaf-sheaths is glabrous as well. It leaf-blades are {{convert|2|–|5|mm}} wide and have either smooth or scaberulous surface.[3] The panicle itself is nodding, open and linear, and is {{convert|13|–|25|cm}} long. The main panicle branches are appressed while spikelets are deflexed and solitary. The spikelets are made out of 4–5 fertile florets which are oblong and {{convert|8|–|15|mm}} long. Fertile spikelets are pediceled, the pedicels of which are filiform. Florets are diminished at the apex[3] and are bisexual.[4] Its lemma have rugulose surface and obtuse apex while fertile lemma is being coriaceous, elliptic, keelless, and is {{convert|6|–|8|mm}} long. Both the lower and upper glumes are oblong, keelless, scarious, and are {{convert|4|–|8|mm}} long. Their size is different; Lower glume is {{convert|2.7|–|4|mm}} long while the upper one is {{convert|3|–|4.5|mm}} long. Palea have ciliolated keels and is 2-veined. Flowers are fleshy, oblong, truncate, have 2 lodicules, and grow together. They have 3 anthers which are {{convert|2|mm}} long which have fruits that are caryopsis, {{convert|2|-|3|mm}} long and have an additional pericarp with linear hilum.[3] EcologyMelica porteri can be found growing on rocky slopes, in open woods, and often near streams.[4]References1. ^{{cite web|url=http://plants.usda.gov/java/profile?symbol=MEPO|title=Melica porteri Scribn. Porter's melicgrass|publisher=PLANTS Profile|work=USDA|accessdate=June 9, 2013}} 2. ^{{cite web|url=http://www.wildflower.org/plants/result.php?id_plant=MEPO|title=Melica porteri |publisher=Wildflower.org|accessdate=June 9, 2013}} 3. ^1 2 3 {{cite web|url=http://www.kew.org/data/grasses-db/www/imp06197.htm|author1=W.D. Clayton |author2=M. Vorontsova |author3=K.T. Harman |author4=H. Williamson |title=Melica porteri|publisher=GrassBase|work=The Board of Trustees, Royal Botanic Gardens|location=Kew|date=November 12, 2012|accessdate=June 9, 2013}} 4. ^1 {{cite journal|author=Barkworth, M.E.|year=2007|title=Melica|publisher=Oxford University Press|work=Flora of North America North of Mexico|volume=24|pages=88–102|place=New York & Oxford}} Further reading
2 : Melica|Endemic flora of the United States |
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