|University of California, Berkeley|
|Directory News Site Map Home|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
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 |
Perennial herb to small tree or vine. Stem: < 3 m, generally erect; bark generally peeling as thin sheets or narrow strips. Leaf: generally simple, opposite, deciduous or not, ± hairy; stipules 0; blade ± round to narrowly elliptic, entire or toothed. Inflorescence: cyme, raceme, panicle, or flower 1, terminal or axillary, generally bracted. Flower: bisexual, radial, flowers on inflorescence margins occasionally sterile and enlarged; sepals 4–10, free or fused at base, spreading or erect; petals 4–7, free, ± round to narrowly elliptic; stamens 8–12 in 2 whorls or many and clustered, filament base linear or wide and flat; pistil 1, ovary superior to inferior, chambers 2–8, ovules 1–2 or many per chamber, placentas axile or parietal, styles 1–8, free or fused at base. Fruit: capsule, loculicidal or septicidal; styles persistent or not. Seed: generally many, small to minute, oblong to fusiform, winged or not.
18 genera, ± 250 species: generally temperate, subtropical northern hemisphere; some cultivated for ornamental (Carpenteria, Hydrangea, Philadelphus). [Hufford et al. 2001 Int J Plant Sci 162:835–846] Philadelphaceae in TJM (1993). —Scientific Editors: Douglas H. Goldman, Bruce G. Baldwin.
Unabridged references: [Hufford 1997 Int J Plant Sci 158:652–672; Soltis et al. 1995 Amer J Bot 82:504–514]
Key to Hydrangeaceae
Shrub < 2 m; herbage generally densely hairy. Stem: bark gray to ± red-brown, peeling as narrow strips. Leaf: deciduous, widely ovate to ± round, pinnately veined, margin toothed, sparsely hairy to ± glabrous above, canescent below. Inflorescence: terminal, flowers 1 or in cymes. Flower: sepals 4 or 5, lanceolate to narrowly ovate; petals 4 or 5, obovate or oblanceolate; stamens 10, alternating long and short, filament base wide and flat; chambers 3–5, 1 in fruit, placentas parietal, ovules many, styles 3–5, free, stigma terminal. Fruit: conic to ovoid, septicidal, styles persistent, spreading in fruit. Seed: many, with net-like ridges.
2 species: southwestern United States, northern Mexico. (Edwin P. James, naturalist, 1797–1861) [Holmgren & Holmgren 1989 Brittonia 41:335–350]
Previous taxon: Fendlerella utahensis
Next taxon: Jamesia americana var. rosea
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Mar 1 2015
Citation for this treatment: [Author of taxon treatment] 2013. Jamesia, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=9630, accessed on Mar 1 2015
Copyright © 2014 Regents of the University of California
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.
| 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.
READ ABOUT YELLOW FLAGS
View elevation by latitude chart
| Data provided by the participants of the Consortium of California Herbaria.
View all CCH records