Spikemoss

Spikemoss

Taxobox
name = Spikemoss



image_width = 240px
regnum = Plantae
divisio = Lycopodiophyta
classis = Selaginellopsida
ordo = Selaginellales
familia = Selaginellaceae
genus = "Selaginella"
subdivision_ranks = Species
subdivision = See text.

Spikemoss refers to any plant of the genus "Selaginella" in the family Selaginellaceae. Many workers still place the Selaginellales in the class Lycopsida (modern nomenclature: Lycopodiopsida). This group of plants is included in what, for convenience, is called "fern allies".

The spikemosses are creeping or ascendant plants with simple, scale-like leaves on branching stems from which roots also arise. The plants are heterosporous (megaspores and microspores), and have structures called ligules, scale-like outgrowths near the base of the upper surface of each microphyll and sporophyll.

Unusually for the lycopods, each microphyll contains a branching vascular trace.

There are about 700 species of "Selaginella", showing a wide range of characters; the genus is overdue for a revision which might include subdivision into several genera. Better-known spikemosses include:

*"Selaginella apoda" -- Meadow Spikemoss (eastern North America)
*"Selaginella braunii" -- Arbor-vitae Fern (China)
*"Selaginella bryopteris" -- Sanjeevani (India)
*"Selaginella canaliculata" -- Clubmoss (southeast Asia, Moluccas)
*"Selaginella densa" -- Lesser Spikemoss (western North America)
*"Selaginella eclipes" -- Hidden Spikemoss (eastern North America)
*"Selaginella kraussiana" -- Krauss's Spikemoss (Africa, Azores)
*"Selaginella lepidophylla" -- "resurrection plant", "dinosaur plant" North America
*"Selaginella moellendorffii" -- Whole genome sequence released. See the [http://wiki.genomics.purdue.edu/index.php/Selaginella "Selaginella" Wiki] administered by the Purdue Genomics Database facility, or browse the genome at the US Department of Energy's [http://genome.jgi-psf.org/Selmo1/Selmo1.home.html Joint Genome Institute] site.
*"Selaginella rupestris" -- Rock Spikemoss or Festoon Pine (eastern North America)
*"Selaginella selaginoides" -- Lesser Clubmoss (north temperate Europe, Asia and North America)
*"Selaginella uncinata" -- Peacock Fern
*"Selaginella willdenovii" -- Electric Fern

Many species of "Selaginella" are desert plants known as "resurrection plants", because they curl up in a tight, brown or reddish ball during dry times, and uncurl and turn green in the presence of moisture. Other species are tropical forest plants that appear at first glance to be ferns.


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Look at other dictionaries:

  • spikemoss — noun any of numerous fern allies of the genus Selaginella • Syn: ↑spike moss, ↑little club moss • Hypernyms: ↑club moss, ↑club moss, ↑lycopod • Hyponyms: ↑ …   Useful english dictionary

  • basket spikemoss — noun spikemoss forming dense mats; eastern North America • Syn: ↑meadow spikemoss, ↑Selaginella apoda • Hypernyms: ↑spikemoss, ↑spike moss, ↑little club moss …   Useful english dictionary

  • meadow spikemoss — noun spikemoss forming dense mats; eastern North America • Syn: ↑basket spikemoss, ↑Selaginella apoda • Hypernyms: ↑spikemoss, ↑spike moss, ↑little club moss …   Useful english dictionary

  • rock spikemoss — noun tufted spikemoss forming loose spreading mats; eastern North America • Syn: ↑dwarf lycopod, ↑Selaginella rupestris • Hypernyms: ↑spikemoss, ↑spike moss, ↑little club moss …   Useful english dictionary

  • List of Canadian plants by family S — Main page: List of Canadian plants by familyFamilies: 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 Salicaceae * Populus angustifolia narrowleaf cottonwood * Populus balsamifera balsam poplar * Populus… …   Wikipedia

  • Selaginella selaginoides — About 1600 metres above sea level, Rax, Austria Scientific classification Kingdom …   Wikipedia

  • little club moss — noun any of numerous fern allies of the genus Selaginella • Syn: ↑spikemoss, ↑spike moss • Hypernyms: ↑club moss, ↑club moss, ↑lycopod • Hyponyms: ↑meado …   Useful english dictionary

  • Selaginella apoda — noun spikemoss forming dense mats; eastern North America • Syn: ↑meadow spikemoss, ↑basket spikemoss • Hypernyms: ↑spikemoss, ↑spike moss, ↑little club moss …   Useful english dictionary

  • spike moss — noun any of numerous fern allies of the genus Selaginella • Syn: ↑spikemoss, ↑little club moss • Hypernyms: ↑club moss, ↑club moss, ↑lycopod • Hyponyms: ↑ …   Useful english dictionary

  • Selaginella eclipes — ID 77184 Symbol Key SEEC Common Name hidden spikemoss Family Selaginellaceae Category Lycopod Division Lycopodiophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AR, CT, IA, IL, IN, KY, MI, MO, NY, OH, OK, WI Growth Habit… …   USDA Plant Characteristics

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