| 词条 | Melica brasiliana |
| 释义 |
|image = |genus = Melica |species = brasiliana |authority = Ard. }}Melica brasiliana, is a grass species in the Poaceae family that is endemic to Brazil and southern South America.[1] DescriptionThe species is perennial with elongated rhizomes. Its culms are {{convert|30|–|60|cm}} long. Culm-internodes scaberulous with leaf-sheaths are tubular with one of their length being closed. They are also erect and connate. Its eciliate membrane is {{convert|2|–|8|mm}} long with leaf-blades being lanceolate, stiff, and are {{convert|3|–|17|mm}} long and {{convert|3.5|-|9|mm}} wide. They also have scabrous margins with apex. The panicle branches are oblong, scaberulous, and are {{convert|8|–|22|cm}} long by {{convert|2|cm}} wide. Its spikelets are obovate, pendulous, solitary and are {{convert|11|–|17|mm}} long. Fertile spikelets have hairy, pubescent, curved and filiformed pedicels. Florets are diminished with callus being pubescent as well. The species have a smooth rachilla.[1] Its lemma have ribbed lateral veins, {{convert|0.7|–|1.2|mm}} long hairs and have acute apex. It also has a pilose and scaberulous surface. Fertile lemma is chartaceous, elliptic and is {{convert|7|–|10|mm}} long. Sterile floret is {{convert|4|mm}} long and is also barren, cuneate, and is clumped. Lower glumes are obovate and are {{convert|11|-|17|mm}} long while the upper glumes are lanceolate and are {{convert|8.5|–|13|mm}} long. Both the lower and upper glumes are keelless and chartaceous, but have different apexes. The upper glume apex is obtuse while the lower glumes is acute. They also have purple coloured hyaline margins. Palea have ciliolate keels. Flowers are fleshy, oblong, truncate, are growing together and are {{convert|0.4|mm}} long. Flowers' 3 anthers are {{convert|2|mm}} long with 2 lodicules. Fruits are dark brown in colour, ellipsoid, have an additional pericarp and are {{convert|3|-|3.5|mm}} long with linear hilum.[1] References1. ^1 2 {{cite web|url= http://www.kew.org/data/grasses-db/www/imp06131.htm |author1=W.D. Clayton |author2=M. Vorontsova |author3=K.T. Harman |author4=H. Williamson |title=Melica brasiliana |publisher=GrassBase|work=The Board of Trustees, Royal Botanic Gardens|location=Kew|date=November 16, 2012|accessdate= June 2, 2013}} {{Taxonbar|from=Q13932607}} 2 : Melica|Endemic flora of Brazil |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。