View source for Orcuttia ← Orcuttia You do not have permission to edit this page, for the following reason: The action you have requested is limited to users in the group: Users. You can view and copy the source of this page. {{Treatment/ID |accepted_name=Orcuttia |accepted_authority=Vasey |publications= |basionyms= |synonyms= |hierarchy=Poaceae;Poaceae subfam. Chloridoideae;Poaceae tribe Orcuttieae;Orcuttia |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Poaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Poaceae subfam. Chloridoideae]]</div><div class="higher-taxon"><small>tribe</small>[[Poaceae tribe Orcuttieae]]</div><div class="higher-taxon"><small>genus</small>[[Orcuttia]]</div></div> |volume=Volume 25 |mention_page= |treatment_page=page 290 }}<!-- --><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>annual; viscid-aromatic, pilose, sometimes sparsely so, producing long, juvenile, floating basal leaves. <b>Culms</b> 3-35 cm, erect, ascending, or decumbent, sometimes becoming prostrate, not breaking apart at the nodes, usually branching only at the lower nodes. <b>Leaves</b> without ligules, sometimes with a "collar" line visible at the junction of the sheath and blade, especially when dry; blades flat or becoming involute in drying. <b>Inflorescences</b> terminal, clavate to capitate spikes, exserted at maturity, spikelets distichously arranged; disarticulation tardy, above the glumes and between the florets. <b>Spikelets</b> laterally compressed, with 4-40 florets. <b>Glumes</b> irregularly 2-5-toothed; lemmas deeply cleft and strongly 5-veined, veins terminating in prominent mucronate or awn-tipped teeth 1/3 - 1/2 or more as long as the lemma bodies, each tooth with an additional weaker vein on either side of a strong central vein, these extending about halfway to the base of the lemma; paleas well-developed, 2-veined; lodicules absent; anthers 3, white or pinkish, exserted on long, slender, ribbonlike filaments at anthesis; styles 2, apical, elongate, filiform, stigmatic for 1/3 – 1/2 of their length; stigmatic hairs short, often sparse. <b>Caryopses</b> slightly compressed laterally, oblong to elliptic; embryos 3/4 as long as to equaling the caryopses; epiblast absent, x = 10, probably.</span><!-- -->{{Treatment/Body |distribution=Calif. |discussion=<p><i>Orcuttia</i> is a genus of five species, all of which are restricted to vernal pools and similar habitats in California and northern Baja California, Mexico.</p> |tables= |references= }}<!-- --><div class="treatment-key"> ==Key== <div class="treatment-key-group"> {| class="wikitable fna-keytable" |-id=key-0-1 |1 |Lemma teeth unequal, the central tooth the longest. |[[#key-0-2| > 2]] |-id=key-0-2 |2 |Lemmas 6-7 mm long, the teeth terminating in awns at least 1 mm long; caryopses 2.3-2.5 mm long |[[Orcuttia viscida|Orcuttia viscida]] |-id=key-0-2 |2 |Lemmas 4-5 mm long, the teeth sharp-pointed or with awns to 0.5 mm long; caryopses 1.3-1.8 mm long. |[[#key-0-3| > 3]] |-id=key-0-3 |3 |Plants sparingly hairy; culms usually prostrate; spikes clavate |[[Orcuttia californica|Orcuttia californica]] |-id=key-0-3 |3 |Plants conspicuously hairy, grayish; culms erect or decumbent; spikes somewhat capitate |[[Orcuttia inaequalis|Orcuttia inaequalis]] |-id=key-0-1 |1 |Lemma teeth essentially equal in length. |[[#key-0-4| > 4]] |-id=key-0-4 |4 |Culms usually prostrate; caryopses 1.5-1.8 mm long |[[Orcuttia californica|Orcuttia californica]] |-id=key-0-4 |4 |Culms erect, ascending, or decumbent; caryopses 2-3 mm long. |[[#key-0-5| > 5]] |-id=key-0-5 |5 |Culms 1-2 mm thick, branching only at the lower nodes; spikes congested, crowded towards the top; leaf blades 3-5 mm wide |[[Orcuttia pilosa|Orcuttia pilosa]] |-id=key-0-5 |5 |Culms 0.5-1 mm thick, often branching from the upper nodes; spikes not congested, even towards the top; leaf blades 1.5-2 mm wide |[[Orcuttia tenuis|Orcuttia tenuis]] |} </div></div><!-- -->{{#Taxon: name=Orcuttia |author=John R. Reeder; |authority=Vasey |rank=genus |parent rank=tribe |synonyms= |basionyms= |family=Poaceae |distribution=Calif. |reference=None |publication title= |publication year= |special status= |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V25/V25_941.xml |subfamily=Poaceae subfam. Chloridoideae |tribe=Poaceae tribe Orcuttieae |genus=Orcuttia }}<!-- -->[[Category:Treatment]][[Category:Poaceae tribe Orcuttieae]] Templates used on this page: Template:Poaceae (view source) Template:Treatment/AuthorLink (view source) Template:Treatment/Body (view source) Template:Treatment/Body/Maps (view source) Template:Treatment/ID (view source) Return to Orcuttia.