View source for Perityle ← Perityle 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=Perityle |accepted_authority=Bentham |publications={{Treatment/Publication |title=Bot. Voy. Sulphur, |place=23, plate 15. 1844 |year=1844 }} |common_names=Rock daisy |basionyms= |synonyms= |hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Peritylinae;Perityle |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Heliantheae]]</div><div class="higher-taxon"><small>subtribe</small>[[Asteraceae (tribe Heliantheae) subtribe Peritylinae]]</div><div class="higher-taxon"><small>genus</small>[[Perityle]]</div></div> |etymology=Greek peri, around, and tyle, a callus, alluding to calloused cypselae margins |volume=Volume 21 |mention_page=page 333, 334 |treatment_page=page 317 }}<!-- --><span class="statement" id="st-d0_s0" data-properties="whole-organism duration;whole-organism duration;whole_organism atypical some measurement;whole_organism some measurement;whole_organism growth form;whole_organism growth form"><b>Annuals,</b> perennials, subshrubs, or shrubs, 2–45 (–75) cm (glabrous or hairy, often glanddotted).</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation"><b>Stems </b>erect to pendent.</span> <span class="statement" id="st-d0_s2" data-properties="leaf position"><b>Leaves </b>mostly cauline;</span> <span class="statement" id="st-d0_s3" data-properties="">often proximally opposite, distally alternate;</span> <span class="statement" id="st-d0_s4" data-properties="leaf arrangement;leaf arrangement;leaf architecture;leaf architecture">petiolate or sessile;</span> <span class="statement" id="st-d0_s5" data-properties="blade shape;ultimate margin shape;ultimate margin shape;ultimate margin shape;ultimate margin shape;ultimate margin shape">blades usually 3-lobed, ultimate margins entire, toothed, or lobed.</span> <span class="statement" id="st-d0_s6" data-properties="head architecture;head architecture;head arrangement;head arrangement;array architecture"><b>Heads </b>radiate or discoid, borne singly or in corymbiform arrays.</span> <span class="statement" id="st-d0_s7" data-properties="involucre shape;involucre shape;involucre shape;involucre diameter"><b>Involucres </b>campanulate, cylindric, funnelform, or hemispheric, 3–15 mm diam.</span> <span class="statement" id="st-d0_s8" data-properties="phyllary duration;phyllary quantity;series atypical quantity;series atypical quantity;series quantity"><b>Phyllaries </b>persistent, 5–28 in (1–) 2 (–3) series (distinct, linear to ovate, equal or subequal, flat or keeled, glabrous or hairy, apices obtuse, acute, or attenuate).</span> <span class="statement" id="st-d0_s9" data-properties="receptacle shape;receptacle shape;receptacle relief;receptacle architecture"><b>Receptacles </b>flat or convex, pitted, epaleate.</span> <span class="statement" id="st-d0_s10" data-properties="ray-floret presence;ray-floret atypical quantity;ray-floret quantity;ray-floret architecture;ray-floret reproduction"><b>Ray-</b>florets 0, or (1–) 3–18, pistillate, fertile;</span> <span class="statement" id="st-d0_s11" data-properties="corolla coloration;corolla coloration;corolla coloration;corolla coloration;corolla coloration">corollas cream, yellow, or white (showy or rudimentary).</span> <span class="statement" id="st-d0_s12" data-properties="disc-floret quantity;disc-floret reproduction;disc-floret reproduction"><b>Disc-</b>florets 5–200, bisexual, fertile;</span> <span class="statement" id="st-d0_s13" data-properties="corolla coloration;corolla coloration;corolla coloration;corolla coloration;corolla coloration;tube height or length or size;throat variability;throat shape;throat shape;lobe quantity;lobe shape">corollas cream, yellow, or white, tubes shorter than or nearly equal to cylindric, funnelform, or campanulate throats, lobes 4, ± deltate (acute; stamens 4; style-branches flattened, linear, usually tapering to fine, minutely hairy tips).</span> <span class="statement" id="st-d0_s14" data-properties="cypsela shape;cypsela shape"><b>Cypselae </b>(black) flattened to subcylindric, linear to oblanceolate or obovate (margins ± calloused and glabrous, hairy, or ciliate, faces usually hairy, sometimes glabrous);</span> <span class="statement" id="st-d0_s15" data-properties="crown texture;scale texture;scale coloration">pappi 0, or persistent or falling, of 1–35 bristles plus callous crowns or hyaline scales.</span> <span class="statement" id="st-d0_s16" data-properties="pappus presence;x chromosome quantity;x chromosome quantity">x = 17, 19.</span><!-- -->{{Treatment/Body |distribution=United States;Mexico;South America |discussion=<p>Species 66 (35 in the flora).</p><!-- --><p>Most species of Perityle are rock-dwelling subshrubs exhibiting geographic speciation; most are found in the eroded mountain and basin region of the southwestern United States.</p> |tables= |references= }}<!-- --><div class="treatment-key"> ==Key== <div class="treatment-key-group"> {| class="wikitable fna-keytable" |-id=key-0-1 |1 |Pappi (disc florets) usually each of 8–35 unequal, antrorsely barbellulate bristles 0.5–3.5 mm (in P. vitreomontana all but 2–3 may be reduced to vestigial nubs); New Mexico, Texas |[[Perityle sect. Pappothrix|Perityle sect. Pappothrix]] |-id=key-0-1 |1 |Pappi (disc florets) 0, or of 1–2(–6) bristles, sometimes plus callous crowns or scales; Arizona, California, Nevada, New Mexico, Texas, and Utah |[[#key-0-2| > 2]] |-id=key-0-2 |2 |Pappi (disc florets) 0, or of 1–2(–3) unequal to subequal, ± barbellate bristles 0.5–4(–6) mm plus hyaline, laciniate scales; margins of cypselae usually densely ciliate |[[Perityle sect. Perityle|Perityle sect. Perityle]] |-id=key-0-2 |2 |Pappi (disc florets) 0, or of 1–2(–6) equal or subequal, antrorsely barbellulate or subplumose bristles 0.5–4.6 mm plus callous crowns or hyaline scales; margins of cypselae usually sparsely short-hairy |[[Perityle sect. Laphamia|Perityle sect. Laphamia]] |} </div></div><!-- -->{{#Taxon: name=Perityle |author=Sharon C. Yarborough;A. Michael Powell |authority=Bentham |rank=genus |parent rank=subtribe |synonyms= |basionyms= |family=Asteraceae |illustrator=Bee F. Gunn |illustration copyright=Flora of North America Association |distribution=United States;Mexico;South America |reference=None |publication title=Bot. Voy. Sulphur, |publication year=1844 |special status= |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21_784.xml |tribe=Asteraceae tribe Heliantheae |subtribe=Asteraceae (tribe Heliantheae) subtribe Peritylinae |genus=Perityle |array architecture=corymbiform |blade shape=3-lobed |corolla coloration=white;yellow;white;yellow;cream;white;yellow;white;yellow;cream |crown texture=callous |cypsela shape=flattened;subcylindric linear |disc-floret quantity=5;200 |disc-floret reproduction=fertile;bisexual |head architecture=discoid;radiate |head arrangement=in corymbiform arrays;singly |involucre diameter=3mm;15mm |involucre shape=hemispheric;cylindric;campanulate |leaf architecture=sessile;petiolate |leaf arrangement=alternate;opposite |leaf position=cauline |lobe quantity=4 |lobe shape=deltate |pappus presence=absent |phyllary duration=persistent |phyllary quantity=5;28 |ray-floret architecture=pistillate |ray-floret atypical quantity=1;3 |ray-floret presence=absent |ray-floret quantity=3;18 |ray-floret reproduction=fertile |receptacle architecture=epaleate |receptacle relief=pitted |receptacle shape=convex;flat |scale coloration=hyaline |scale texture=callous |series atypical quantity=2;3 |series quantity=2 |stem orientation=erect;pendent |throat shape=campanulate;cylindric |throat variability=equal |tube height or length or size=shorter |ultimate margin shape=lobed;toothed;lobed;toothed;entire |whole-organism duration=perennial;annual |whole_organism atypical some measurement=45cm;75cm |whole_organism growth form=shrub;subshrub |whole_organism some measurement=2cm;45cm |x chromosome quantity=19;17 }}<!-- -->[[Category:Treatment]][[Category:Asteraceae (tribe Heliantheae) subtribe Peritylinae]] Templates used on this page: Template:Asteraceae (view source) Template:Treatment/AuthorLink (view source) Template:Treatment/Body (view source) Template:Treatment/Body/Maps (view source) Template:Treatment/ID (view source) Template:Treatment/Publication (view source) Return to Perityle.