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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 ( annual), submersed marine aquatic, rhizomed, glabrous; monoecious or dioecious.
Stem: flat, leafy, creeping or short with wide, thick base.
Leaf: alternate, 2-ranked or tufted, < 2 m; sheath open or closed; blade linear, ribbon-like, tip entire to notched; stipules 0.
Inflorescence: axillary or terminal spike, of limited distribution on plant, ± flat, enclosed by membranous, leaf-like bract in flower, also in fruit or not; flowers many, 2-rowed on 1 side of axis, each embedded in axis, enclosed by translucent, scale-like bract or not; peduncle not elongating.
Staminate flower: perianth 0; stamen 1, anther generally sessile, 2-chambered; pollen thread-like, < 2 mm.
Pistillate flower: perianth 0; ovary 1, chamber 1, ovule 1, style 1, stigmas 2.
Fruit: ± achene.
3 genera, ± 18 species: seacoasts, worldwide; some species, especially Zostera marina, source of food for marine animals, some aboriginal humans. [Haynes 2000 FNANM 22:90–94] —Scientific Editor: Thomas J. Rosatti.
Key to Zosteraceae
Key to Zostera
Stem: < 3 m.
Leaf: 0.5–1.5(2) m, (0.5)1–18.5 mm wide.
Inflorescence: enclosed by subtending, membranous, sheath-like leaf base; staminate, pistillate flowers alternate.
Pistillate flower: ovary tapered to short style.
12 species: marine waters worldwide. (Greek: from ribbon-like leaves) [Coyer et al. 2008 Ann Bot 101:73–87; Dean et al. 2008 Madroño 55:93–112] Important food source for marine animals, some aboriginal humans; Zostera asiatica Miki reported for CA (Coyer et al., Dean et al.), possibly naturalized, but may not be distinct from Zostera marina.
Unabridged references: [Kato, Y. [et al. 2003], Aioi, K., Omori, Y., Takahata, N., & Satta, Y. 2003. Phylogenetic analyses of Zostera species based on rbcL and matK sequences: Implications for the origin and diversification of seagrasses in Japanese waters. Genes Genet. Syst. 78: 329–342; Les, D. H., Moody, M. L., Jacobs, S. W. L., & Bayer, R. J. 2001. Systematics and taxonomy of Australian seagrasses (family Zosteraceae). P. 123, in Botany 2001: Plants and People, Abstracts. [Albuquerque.]; Nomme & Harrison 1991 Canad J Bot 69:1984–1990; Phillips & Echeverria 1990 Pacific Sci 44:130–134]
Previous taxon: Phyllospadix torreyi
Next taxon: Zostera japonica
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||Red area (if present) is the part of the bioregion lying between the upper and lower elevation limits of the taxon;|
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.
|Map made in collaboration with Scott Loarie. Data provided by the participants of the Consortium of California Herbaria.
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