Jepson Herbarium
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Indexes to all accepted names and synonyms: | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |

Annual, perennial herb, glabrous to glandular-hairy.
Leaf: simple, ± basal, petioled or not; stipules 0.
Inflorescence: scapose umbel.
Flower: bisexual, radial; parts generally in 4s or 5s; calyx deeply lobed, often persistent; corolla lobes spreading to reflexed; stamens epipetalous, opposite corolla lobes; ovary superior, 1-chambered, placenta free-central, style 1, stigma head-like.
Fruit: capsule, 2–6-valved or circumscissile.
Seed: small, few to many.
± 9 genera, 600 species: n hemisphere; several ornamental (Dodecatheon, Primula). [Martins et al. 2003 Plant Syst Evol 237:75–85] Based on molecular evidence, non-rosette terrestrial members of Primulaceae as treated in TJM (1993) moved to Myrsinaceae, and Samolus to Theophrastaceae. —Scientific Editor: Thomas J. Rosatti.
Unabridged references: [Källersjö et al. 2000 Amer J Bot 87:1325–1341; Lens et al. 2005 Syst Bot 30:163–183; Martins et al. 2003 Plant Syst Evol 237:75–85; Oberprieler & Hellwig 2003 Plant Syst Evol 237: 75–85; Stähl & Anderberg, in Kubitzki et al. 2004 Fam Generally Vasc Plant 6: 266–281]
Unabridged note: Recent molecular work has redefined Ericales. As delineated by the Angiosperm Phylogeny Group (see http://www.mobot.org/MOBOT/research/APweb/), non-rosette, terrestrial members of Primulaceae s.l. have been removed from that grouping and inserted in Myrsinaceae. Myrsinaceae, then, is characterized by synapomorphies of dark dots or streaks on stems, leaves, or flowers, short corolla tubes, seeds immersed in the placenta, and – for woody members – wood lacking rays or with only multiseriate rays. Primulaceae, Myrsinaceae, Theophrastaceae, and Maesaceae (a new segregate of tropical trees), now constitute a closely related, monophyletic clade.

Key to Primulaceae

Annual, perennial herb, generally < 12 cm.
Inflorescence: umbel subtended by involucre.
Flower: parts in 5s; calyx tube scarious, lobes acute; corolla salverform, tube narrowed at top, lobe tips obcordate or notched; filaments ± 0 or short, anthers free, oblong, included; ovary superior, spheric, style short.
Fruit: 5-valved, spheric.
± 100 species: n temperate, arctic, especially Asia. (Greek: uncertain sea-plant) [Schneeweiss et al. 2004 Syst Biol 53:856–876]
Unabridged references: [Robbins 1944 Amer Midl Naturalist 32:137–163; Schneeweiss et al. 2004 Syst Biol 53(6):856–876]

Annual, weak perennial herb, 1–6 cm, hairy.
Leaf: 5–20 mm, lance- linear, tapered to petiole, entire to finely dentate.
Inflorescence: peduncles (1)several; involucre bracts 1.7–3 mm, generally < 0.5 mm wide, lance- linear to lanceolate; pedicel 0.5–5 cm.
Flower: calyx (2.5)3–4 mm, glabrous or puberulent at base, tube > lobes, scarious between ridges, lobes widely lanceolate to triangular, generally ± red, tips acute to obtuse; corolla >= calyx, white.
Dry, rocky sites; 2700–3600 m. c&s High Sierra Nevada, San Bernardino Mountains, East of Sierra Nevada;

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Next taxon: Dodecatheon

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].

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Bioregions in which taxon occurs	Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
Chart based on elevation range in Manual and elevations and coordinates of CCH records. Data provided by the participants of the Consortium of California Herbaria. Note: About half of the CCH records include both elevation and coordinates.	Data provided by the participants of the Consortium of California Herbaria. View all CCH records   CCH collections by month Duplicates counted once; synonyms included. Species do not include records of infraspecific taxa. Blue line denotes Manual flowering time.