| 词条 | Melica arzivencoi |
| 释义 |
|image = |genus = Melica |species = arzivencoi |authority = Valls & Barcellos }}Melica arzivencoi is a grass species in the Poaceae family that is endemic to Brazil where it can be found in Rio Grande do Sul.[1] It was described by Valls and Barcellos in 1973.[2] DescriptionThe species is bisexual, cespitose, perennial and is rhizomatous. The culms are {{convert|90|cm}} long and about {{convert|0.6|mm}} thick. They are also erect, decumbent, and scabrous at the same time. Leaf-sheaths are closed and are both glabrous and scabrous. The leaf-blades on the other hand are acute and are {{convert|2|-|11|cm}} long and {{convert|1.5|-|4|mm}} wide. They are also flat, linear and have an adaxial bottom which is hispid and tipped. Panicles are erect, narrow and dense. They can either be {{convert|6|-|10|mm}} long or {{convert|7|-|8|mm}}. Branches are {{convert|3|cm}} long and are erect with villous pedicels which are curved as well. Spikelets are {{convert|3.5|-|4|mm}} in length but could exceed up to {{convert|4.7|mm}}. When young, they are bright violet in colour, and carry 1-2 bisexual florets by maturity. The glumes are acute, glabrous, hyaline, membranous, and lanceolated at the same time at are have 3-5 veines. Lemma is lanceolated as well and is {{convert|3|-|3.5|mm}} long. Fruits are about {{convert|1.5|mm}} long are {{convert|0.6|mm}} in diameter and obovoid as well.[1] EcologyIt grows in grassy, woody landscapes, and on rocks at elevations of {{convert|2770|m}}. In some cases they require moisture that should be at {{convert|900|-|1000|m}}. Flowers bloom from December to February.[1] References1. ^1 2 {{cite book|author=Longhi-Wagner, H.M.|author2=V. Bittrich|author3=M. das Graças Lapa Wnderley|author4=G.J. Shepherd|last-author-amp=yes|title=Melica arzivencoi|year=2001|publisher= Editora Hucitec|work=Flora fanerigâmica de estado de São Paulo|place=São Paulo, Brazil|volume=1}} {{Taxonbar|from=Q13423979}}2. ^{{cite web|url=http://plants.jstor.org/specimen/lp001524|title=Isotype of Melica arzivencoi Valls, 1973 & Barcellos, 1973 [family POACEAE]|publisher=JSTOR Globan Plants|accessdate=May 26, 2013}} 3 : Melica|Plants described in 1973|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。