|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, submersed aquatic; overwintering on bottom as detached, dense shoot tips (winter buds); roots 0; monoecious; water-pollinated. Stem: flexible with water currents, internodes clustered near tip. Leaf: whorled, generally compound, forked; segments linear, toothed; stipules 0; petiole 1–2 mm, translucent. Inflorescence: reduced axillary cymes generally near shoot tips, ± sessile, 1–several per node, generally staminate below, pistillate above, or sometimes mixed at a node; flowers 1–3 per cyme but appearing to be 1 subtended by calyx-like whorl of 8–15 bracts, bracts linear, leaf-like, fused at base, toothed at tip, persistent in fruit. Flower: unisexual; perianth 0; staminate round-topped, stamens 3–50, spirally arranged, anthers ± sessile, exserted from bracts, pollen shed underwater; pistillate of 1 simple, ovoid pistil, ovary superior, chamber 1; placenta pendulous; style elongate, spine-like, with decurrent groove; stigma pocket-like, at style base; ovule 1. Fruit: achene, tubercled or not, spines 0 or elongate, basal, facial, marginal or stylar; lateral margin winged or not.
1 genus, 6 species: ± worldwide. [Les 1997 FNANM 3:81–84] —Scientific Editor: Thomas J. Rosatti.
Previous taxon: Anemopsis californica
Next taxon: Ceratophyllum
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Nov 27 2014
Citation for this treatment: [Author of taxon treatment] 2013. Ceratophyllaceae, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=94, accessed on Nov 27 2014
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.