View source for Lasiacis

{{Treatment/ID
|accepted_name=Lasiacis
|accepted_authority=(Griseb.) Hitchc.
|publications=
|basionyms=
|synonyms=
|hierarchy=Poaceae;Poaceae subfam. Panicoideae;Poaceae tribe Paniceae;Lasiacis
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Poaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Poaceae subfam. Panicoideae]]</div><div class="higher-taxon"><small>tribe</small>[[Poaceae tribe Paniceae]]</div><div class="higher-taxon"><small>genus</small>[[Lasiacis]]</div></div>
|volume=Volume 25
|mention_page=
|treatment_page=page 387
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>perennial (rarely annual); cespitose. <b>Culms</b> 0.5-8 m, weakly lignified, erect, arching, climbing, or decumbent, rooting at the nodes. <b>Sheaths</b> open; ligules membranous, sometimes ciliate; pseudopetioles sometimes present; blades linear to ovate, bases slightly to strongly asymmetric. <b>Inflorescences</b> open or contracted panicles, rachises usually visible, even distally, spikelets attached obliquely to the pedicels; disarticulation below the glumes. <b>Spikelets</b> subglobose to globose, with 2 florets. <b>Glumes</b> membranous, apices lanate pubescent, abruptly apiculate; lower glumes 1/3 – 2/3 as long as the spikelets, 5-13-veined, bases saccate, margins overlapping; upper glumes about as long as the upper florets, not saccate, 7-15-veined; lower florets sterile or staminate; lower lemmas membranous, apices lanate pubescent, abruptly apiculate; lower paleas present, sometimes reduced; upper florets stipitate, bisexual, appearing to be mucronate or acuminate; upper lemmas indurate, usually broadly elliptic to obovate, margins enclosing the edges of the paleas, apices obtuse, somewhat woolly pubescent, usually dark brown at maturity; upper paleas similar to the lemmas, but saccate below and gibbous above. <b>Caryopses</b> plano-convex, ovoid, or nearly orbicular; embryo about M as long as the caryopses; hila oblong to nearly round, x = 9.</span><!--

-->{{Treatment/Body
|distribution=Puerto Rico;Virgin Islands;Fla.
|discussion=<p>In <i>Lasiacis</i> the upper florets appear to be mucronate or acuminate. The mucro or acuminate apex is formed by the tuft of hairs at the apex of the upper floret.</p><!--
--><p><i>Lasiacis</i> is a neotropical genus of 16 species that extends from southern Florida to Peru and Argentina. Two species are native to the Flora region. The shiny black color of its mature florets and the oil-filled cells of the inner epidermes of the glumes and sterile lemmas distinguish <i>Lasiacis</i> from all other grasses. Birds are a common dispersal agent.</p>
|tables=
|references={{Treatment/Reference
|id=davidse1973a
|text=Davidse, G. and E. Morton. 1973. Bird-mediated fruit dispersal in the tropical grass genus Lasiacis (Gramineae: Paniceae). Biotropica 5:162-167.
}}{{Treatment/Reference
|id=davidse1978a
|text=Davidse, G. 1978. A systematic study of the genus Lasiacis (Gramineae: Paniceae). Ann. Missouri Bot. Gard. 65:1133-1254
}}
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Leaf blades linear-lanceolate to narrowly lanceolate, 3-16 cm long, 3-30 mm wide
|[[Lasiacis divaricata|Lasiacis divaricata]]
|-id=key-0-1
|1
|Leaf blades ovate to broadly lanceolate, 2-16 cm long, 8-56 mm wide
|[[Lasiacis ruscifolia|Lasiacis ruscifolia]]
|}
</div></div><!--

-->{{#Taxon:
name=Lasiacis
|author=Gerrit Davidse;
|authority=(Griseb.) Hitchc.
|rank=genus
|parent rank=tribe
|synonyms=
|basionyms=
|family=Poaceae
|distribution=Puerto Rico;Virgin Islands;Fla.
|reference=davidse1973a;davidse1978a
|publication title=
|publication year=
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V25/V25_1100.xml
|subfamily=Poaceae subfam. Panicoideae
|tribe=Poaceae tribe Paniceae
|genus=Lasiacis
}}<!--

-->[[Category:Treatment]][[Category:Poaceae tribe Paniceae]]