View source for Jepsonia ← Jepsonia 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=Jepsonia |accepted_authority=Small |publications={{Treatment/Publication |title=Bull. Torrey Bot. Club |place=23: 18, plate 256. 1896 , }} |basionyms= |synonyms= |hierarchy=Saxifragaceae;Jepsonia |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Saxifragaceae]]</div><div class="higher-taxon"><small>genus</small>[[Jepsonia]]</div></div> |etymology=For Willis Linn Jepson, 1867–1946, California botanist |volume=Volume 8 |mention_page=page 43, 44, 46, 119, 120, 132 |treatment_page=page 118 }}<!-- --><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> (acaulescent, heterostylous), not rhizomatous, not stoloniferous; caudex branched or unbranched, ovoid or flat, cormlike, fleshy, without scales. <b>Flowering</b> stems (usually appearing in autumn or winter after basal leaves have withered), erect or ascending, leafless, 3–28 cm, stipitate-glandular, slightly viscid. <b>Leaves</b> in basal rosette and cauline; stipules present; petiole stipitate-glandular; blade ovate to suborbiculate or orbiculate-reniform, shallowly lobed, base cordate, ultimate margins crenate with callous-apiculate teeth, apex obtuse to rounded, surfaces hairy; venation palmate. <b>Inflorescences</b> cymose panicles, (origin of inflorescences not readily resolvable), 2–17-flowered, sometimes flowers solitary, bracteate, (simple or branched distally, glandular-viscid or glabrate). <b>Flowers</b> heterostylous; hypanthium free from ovary except at base, yellow-green to pinkish; sepals 5, yellow-green to pinkish; petals 5, white, veins prominently colored, (spatulate to elliptic, glabrous); nectary tissue not visible; stamens 10; filaments subulate, (alternate ones surpassing sepals); ovary superior, 2-locular, carpels connate to middle; placentation axile (appearing marginal); styles 2; stigmas 2. <b>Capsules</b> folliclelike, 2-beaked. <b>Seeds</b> brownish, irregular in outline with pinched, curved base, reticulate with longitudinal wings or ridges. <b>x</b> = 7.</span><!-- -->{{Treatment/Body |distribution=Calif.;nw Mexico. |discussion=<p>Species 3 (3 in the flora).</p><!-- --><p><i>Jepsonia</i> is characterized by heterostylous flowers that are produced in the autumn after summer drought; some flowers have long styles and short stamens; others have short styles and long stamens. The floral differences associated with heterostyly within populations in this genus are part of an incompatibility mechanism that prevents self-fertilization. Leaves appear after flowering and persist through the winter if moisture is available. Rarely, leaves and flowers are present simultaneously. All three species of <i>Jepsonia</i> also produce a secondary taproot each year. This structure begins to grow after seasonal rains and shrivels before flowering begins. It apparently acts as a contractile root. The three species in this genus are narrow allopatric endemics.</p> |tables= |references={{Treatment/Reference |id=ornduff1969a |text=Ornduff, R. 1969b. Ecology, morphology, and systematics of Jepsonia (Saxifragaceae). Brittonia 21: 286–298. }}{{Treatment/Reference |id=soltis1984b |text=Soltis, D. E. 1984c. Karyotypes and relationships of species of Jepsonia (Saxifragaceae). Syst. Bot. 9: 137–141. }} }}<!-- --><div class="treatment-key"> ==Key== <div class="treatment-key-group"> {| class="wikitable fna-keytable" |-id=key-0-1 |1 |Caudices unbranched, ovoid to spheric; leaves 1(-3); inflorescences 1-5(-10)-flowered; hypanthia 2+ times sepals; sw California, n Baja California. |[[Jepsonia parryi|Jepsonia parryi]] |-id=key-0-1 |1 |Caudices branched, ovoid or flat; leaves 2-3; inflorescences (3-)4-17(-25)-flowered; hypanthia ± equaling or to 1.5 times sepals; Sierra Nevada foothills or Channel Islands |[[#key-0-2| > 2]] |-id=key-0-2 |2 |Peduncles pink or reddish, branched near middle; petals withering; pollen bluish or cream; seeds light brown. |[[Jepsonia heterandra|Jepsonia heterandra]] |-id=key-0-2 |2 |Peduncles greenish or olive, branched distally; petals persistent; pollen yellowish; seeds dark brown. |[[Jepsonia malvifolia|Jepsonia malvifolia]] |} </div></div><!-- -->{{#Taxon: name=Jepsonia |author=Debra K. Trock |authority=Small |rank=genus |parent rank=family |synonyms= |basionyms= |family=Saxifragaceae |illustrator=Yevonn Wilson-Ramsey |illustration copyright=Flora of North America Association |distribution=Calif.;nw Mexico. |reference=ornduff1969a;soltis1984b |publication title=Bull. Torrey Bot. Club |publication year= |special status= |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V8/V8_234.xml |genus=Jepsonia }}<!-- -->[[Category:Treatment]][[Category:Saxifragaceae]] Templates used on this page: Template:Saxifragaceae (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) Template:Treatment/Reference (view source) Return to Jepsonia.