Overview
Interesting Facts
Common Names
Common Names in English:
Single-Sorus Spleenwort, Single-Sorus Fern, Singlesorus Spleenwort
Description
Family Aspleniaceae
Plants
terrestrial
, on rock, or rarely epiphytic. Stems erect
or nearly erect, rarely long-creeping, scaly
. Steles radially symmetric
or dorsiventral (with structurally distinct
abaxial
and adaxial
aspects
) dictyosteles. Leaves monomorphic
, rarely almost dimorphic
with fertile
leaves taller and more erect than sterile
ones. Petioles
with 1 vascular bundle X-shaped in cross
section
or with 2 vascular bundles
back to back and C-shaped. Blades
extremely diverse
, simple
to 4-pinnate, commonly with tiny glandular
hairs
and a few linear scales
, rarely with spreading
hairs. Veins free
to anastomosing. Sori borne on veins, ± lunate
to linear
. Indusia usually present, shape
conforming to sorus and originating along 1 side of sorus. Sporangia with stalk
of 1 row
of cells
, annulus vertical
, interrupted
by sporangial
stalk. Spores monolete; perispore
typically winged
, spiny
, reticulate
, or perforate
. Gametophytes surficial
, green, cordate.
Genera 1, species ca.
700 (1 genus, 28 species, and 3 nothospecies
in the flora
) : worldwide.
Members
of this family
can usually be identified by the combination
of clathrate stem scales and indusiate
linear sori. Supporting anatomic characteristics include the two vascular bundles in the petiole that unite
distally in the petiole to form an X-shaped petiolar
strand
, and the single row of cells in the sporangial stalk. The scales
consist of cells with dark, thick, radial
walls and clear, thin, tangential walls, giving the scales a clathrate (latticelike) appearance
reminiscent of lead
moldings between plates
of stained glass.
As construed here, Aspleniaceae comprise a single, huge, extremely diverse genus, Asplenium . A satisfactory taxonomic
division into subgenera
or satellite
genera has not been possible because of the absence of any significant gaps
. Various segregates
have been proposed (e.g.
, Camptosorus, Phyllitis, Ceterach, Pleurosorus ), but numerous
"intergeneric" hybrids occur.
The members of Asplenium are popular with plant evolutionists, field
naturalists, and fern gardeners, not only because of the interesting morphology of the plants but also because of their remarkable ability to form spectacular hybrids, often combining dramatically different leaf shapes. In North America, 23 diploid hybrids and allopolyploids have been recorded. At least two of these hybrid combinations occur as both sterile diploids and their fertile allotetraploid derivatives. Only those hybrids that are reproductively competent (through vigorous clone-forming by root
proliferations or apogamy, or rarely through sexual reproduction) are treated in the key
and fully described below.
Only about two-fifths of the reproductively competent species are believed to be cladistically divergent species; the other three-fifths are of hybrid origin
(allopolyploids) . For two of the allotetraploids, sterile diploids of the same parentage are also known. The most unusual allopolyploid phytogeographically is Asplenium adiantum-nigrum, the parents of which are known only in the Old World. These reticulate relationships are summarized in the reticulogram.
Polyploidy is widespread in Asplenium, and the chromosome numbers vary from 2 x
to 6 x . Two species, Asplenium trichomanes and A . heterochroum, occur in different levels of polyploidy---2 x and 4 x, and 4 x and 6 x, respectively. The highest chromosome number known for Asplenium in North America is 2 n = 216 (in A . trichomanes-dentatum and the hexaploid
form of A . heterochroum ) . The only three apogamous taxa are A . monanthes (3 x ), A . resiliens (3 x ), and A . × heteroresiliens (5 x ) .[1]
Genus Asplenium
Roots
fibrous
, not proliferous or proliferous and producing tiny plantlets
. Stems erect
, rarely long-creeping; scales
basally attached, clathrate. Petioles
not articulate
. Blades
1--4-pinnate, of diverse
size and shape
. Indusia present. x
= 36.
Species ca.
700 (28 species, 3 nothosp: worldwide.[2]
Physical Description
Species Asplenium monanthes
Roots not proliferous. Stems erect , unbranched; scales black with lighter margins , linear-lanceolate, 3--6 × 0.4--0.8 mm, margins entire. Leaves monomorphic . Petiole reddish brown throughout, lustrous , 1--12(--20) cm, 1/3--1/10 length of blade ; indument of black filiform scales. Blade linear, 1-pinnate throughout, 5--25(--40) × 1--2.5(--3) cm, thick, glabrous ; base gradually tapered; apex acute, not rooting . Rachis reddish brown throughout, lustrous, glabrous. Pinnae in 10--40 pairs, oblong to quadrangular , somewhat asymmetric ; medial pinnae 4--15 × 2--5 mm; base rounded to cuneate; margins crenulate or ± entire; apex obtuse . Veins free , obscure . Sori 1(--3) per pinna, only on basiscopic side. Spores 32 per sporangium. n = 2 n = 108 (apogamous). [source]
Habit: Forb/herb
Flowers: Flower Color: inconspicuous, none
Size/Age/Growth
Size: 12-18" tall.
Habitat
Rock; 50--1000 m [3].
Typically found at an altitude of 0 to 4,936 meters (0 to 16,194 feet).[4]
Biology
Reproduction
Duration: Perennial
Growth
Soil: Minimum pH: 6.6 • Maximum pH: 8.5
Sunlight: Sun Exposure: Light Shade.
Taxonomy
- Domain:
Eukaryota
(
)
- Whittaker & Margulis,1978
- eukaryotes
- Kingdom:
Plantae
(
)
- Haeckel, 1866
- Plants
- Subkingdom:
Viridaeplantae
(
)
- Cavalier-Smith, 1981
- Phylum:
Tracheophyta
(
)
- Sinnott, 1935 ex Cavalier-Smith, 1998
- Vascular Plants
- Subphylum:
Euphyllophytina
(
)
- Infraphylum:
Moniliformopses
(
)
- Kenrick & Crane, 1997, Nom. Nud.
- Class:
Polypodiopsida
(
)
- Cronquist et al.
- Order:
Polypodiales
(
)
- Link
- Family:
Aspleniaceae
(
)
- Newman
- Spleenwort Family
- Genus:
Asplenium
(
)
- C. Linnaeus, 1753
- Spleenwort [Greek splen, spleen; thought by Dioscorides to be useful for treating spleen diseases]
- Specific epithet:
monanthes
- L.
- Botanical name: - Asplenium monanthes L.
- Specific epithet:
monanthes
- L.
- Genus:
Asplenium
(
- Family:
Aspleniaceae
(
- Order:
Polypodiales
(
- Class:
Polypodiopsida
(
- Infraphylum:
Moniliformopses
(
- Subphylum:
Euphyllophytina
(
- Phylum:
Tracheophyta
(
- Subkingdom:
Viridaeplantae
(
- Kingdom:
Plantae
(
Notes
Publishing author : L. Publication : Mant. Pl. 130 1767 [15-31 Oct 1767]
Similar Species
Members of the genus Asplenium
ZipcodeZoo has pages for 165 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them:
A. abscissum (Abscised Spleenwort) · A. acuminatum (Taper-Tip Spleenwort) · A. adiantum-nigrum (Black Spleenwort) · A. adiantum-nigrum woronowii (Black Spleenwort) · A. adulterinum (Ladder Spleenwort) · A. aethiopicum (Egyptian Spleenwort) · A. alternifolium (Alternateleaf Spleenwort) · A. auriculatum (Tree-Trunk Spleenwort) · A. auritum (Auricled Spleenwort) · A. auritum Sw. var. auritum Sw. (Eared Spleenwort) · A. auritum Sw. var. bipinnatifidum Kunze (Eared Spleenwort) · A. auritum var. auritum (Eared Spleenwort) · A. auritum var. bipinnatifidum (Eared Spleenwort) · A. australasicum (Birds Nest Fern) · A. australasicum forma australasicum (Bird´s-Nest Fern) · A. australasicum f. robinsonii (Bird´s-Nest Fern) · A. biscaynianum (Biscayne Spleenwort) · A. boydstoniae (Boydston's Spleenwort) · A. bradleyi (Bradley's Spleenwort) · A. bulbiferum (Hen and Chickens Fern) · A. caudatum (Speenwort) · A. ceterach (Rusty-Back Fern) · A. cirrhatum (Chestnut Scale Spleenwort) · A. clermontiae (Clermont's Spleenwort) · A. contiguum (Forest Spleenwort) · A. contiguum Kaulf. var. contiguum Kaulf. (Forest Spleenwort) · A. contiguum Kaulf. var. hirtulum C.Chr. (Forest Spleenwort) · A. contiguum var. contiguum (Forest Spleenwort) · A. contiguum var. hirtulum (Forest Spleenwort) · A. corderoanum (Rio Abajo Spleenwort) · A. cristatum (Parsley Spleenwort) · A. cuneatum (Wedge-Leaf Spleenwort) · A. curtissii (Curtiss' Spleenwort) · A. dalhousiae (Countess Dalhousie's Spleenwort) · A. densum (Dense Spleenwort) · A. ebenoides (Dragon Tails Fern) · A. enatum (Queen Spleenwort) · A. esculentum (Vegetable Fern) · A. exiguum (Little Spleenwort) · A. feei (Fee's Spleenwort) · A. flabellifolium (Necklace Fern) · A. flabellulatum (Latin American Spleenwort) · A. flaccidum (Weeping Spleenwort) · A. flaccidum flaccidum (Weeping Spleenwort) · A. formosum (Showy Spleenwort) · A. goudeyi (Birds Nest Fern) · A. gravesii (Graves' Spleenwort) · A. haleakalense (Haleakala Spleenwort) · A. herb-wagneri (Herb's Spleenwort) · A. heterochroum (Bicolored Spleenwort) · A. heteroresiliens (Resilient Spleenwort) · A. hobdyi (Hobdy's Spleenwort) · A. horridum (Lacy Spleenwort) · A. inexpectatum (Spleenwort) · A. insiticium (Royal Spleenwort) · A. juglandifolium (Walnut Spleenwort) · A. kaulfussii (Kaulfuss Spleenwort) · A. kentuckiense (Kentucky Spleenwort) · A. laetum (Brownstem Spleenwort) · A. lobulatum (Piipiilau Manamana) · A. macraei (Macrae's Spleenwort) · A. monanthes (Single-Sorus Spleenwort) · A. montanum (Mountain Spleenwort) · A. morganii (Morgan's Spleenwort) · A. myriophyllum (Limestone Spleenwort) · A. neobrackenridgei (Neobrackenridge's Spleenwort) · A. nidus (Bird's Nest Fern) · A. nidus var. plicatum (Bird's Nest Fern) · A. nidus 'Antiquum' (Japanese Birds Nest) · A. nidus 'Osaka' (Osaka Bird's Nest Fern) · A. nidus 'Ruffled' (Ruffled Birds Nest Fern) · A. nodosum (Nodeless Danafern) · A. normale (Rainforest Spleenwort) · A. oblongifolium (Shining Spleenwort) · A. obtusatum (Shore Spleenwort) · A. obtusifolium (Bluntleaf Spleenwort) · A. ocoense (Rockledge Spleenwort) · A. palmeri (Palmer Spleenwort) · A. patens (Spreading Spleenwort) · A. pinnatifidum (Lobed Spleenwort) · A. platyneuron (Ebony Spleenwort) · A. platyneuron var. bacculum-rubrum (Ebony Spleenwort) · A. platyneuron var. platyneuron (Ebony Spleenwort) · A. platyneuron var. proliferum (Ebony Spleenwort) · A. plenum (Ruffled Spleenwort) · A. polyodon (Petako) · A. polyodon G.Forst. var. knudsenii (Hbd.) Morton (Knudsen's Birdnest Fern) · A. polyodon G.Forst. var. nitidulum (Skottsb.) Morton (Birdnest Fern) · A. polyodon G.Forst. var. sectum (Hbd.) Morton (Birdnest Fern) · A. polyodon G.Forst. var. subcaudatum (Skottsb.) Morton (Birdnest Fern) · A. polyodon var. knudsenii (Knudsen's Birdnest Fern) · A. polyodon var. nitidulum (Birdnest Fern) · A. polyodon var. sectum (Birdnest Fern) · A. polyodon var. subcaudatum (Birdnest Fern) · A. pseudoerectum (Antilles Spleenwort) · A. pteropus (West Indian Spleenwort) · A. pumilum (Dwarf Spleenwort) · A. radicans (Dullgreen Spleenwort) · A. resiliens (Black-Stem Spleenwort) · A. rhizophyllum (Walking Fern)
More Info
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Further Reading
- A floral and faunal inventory of the Réserve spéciale d'Anjanaharibe-Sud, Madagascar: with reference to elevational variation / Steven M. Goodman, editor. 90 1998 [Chicago, Ill.]: Field Museum of Natural History, c1998. url table 3-1 , p. 19, p. 35.
- Bulletin of the British Museum (Natural History). London: The Museum, 1951-1992. url p. 131, p. 142, p. 149.
- Bulletin of the Torrey Botanical Club. 40 1913 New York: Torrey Botanical Club, 1870-1996 url p. 210.
- Contributions from the United States National Herbarium 17 1913-1916 Washington, D.C.: Smithsonian Institution Press, 1890- url plate 1, p. 138, p. 14, p. 146, p. 149, p. 150, p. 151, p. 152, p. 153, p. 411, p. 586, p. XI.
- Contributions from the University of Michigan Herbarium. 9 1966 Ann Arbor: University Herbarium, University of Michigan, 1939- url p. 63, p. 85.
- Contributions to the flora of Venezuela / Julian A. Steyermark and collaborators. 28 1957 Chicago, Ill.: Chicago Natural History Museum, 1957. url p. 747.
- Dictionary of the common names of plants with list of foreign plants cultivated in the open / by Rudolf Marloth. Cape Town: Specialty Press of South Africa, 1917. url p. 27.
- Ferns and fern allies of Guatemala. Robert G. Stolze; the genus Elaphoglossum by: John T. Mickel; the genus Thelypteris by: Alan R. Smith. 6 1981 Chicago, Ill.: Field Museum of Natural History, 1981. url p. 63, p. 77.
- Minnesota botanical studies. Minneapolis, Geological and Natural History Survey of Minnesota. url p. 774.
- Problems of cytology and evolution in the Pteridophyta. Cambridge [Eng.]University Press, 1950. url p. 158, p. 183, p. 195, p. 300, p. 304, p. 311.
- Proceedings of the United States National Museum. Washington: Smithsonian Institution Press, [etc.] url p. 635.
- Pteridophyta of Peru. Rolla M. Tryon, Robert G. Stolze; with the collaboration of Blanca León. 32 1993 Chicago, Ill.: Field Museum of Natural History, 1993. url p. 16, p. 17, p. 48.
- The Philippine journal of science. 9 1914 Manila. url p. 42.
- The ethnobotany of Chinchero, an Andean community in southern Peru / Christine Franquemont. .. [et al.]. 24 1990 Chicago, Ill.: Field Museum of Natural History, c1990. url p. 119, p. 36.
- The flora of the Dutch West Indian islands St. Eustatius, Saba and St. Martin. Leyden, Brill, 1909. url p. 305, p. 4.
- Wissenschaftliche ergebnisse der Deutschen Zentral-Africa-Expedition, 1907-1908: unter Führung Adolf Friedrichs, herzogs zu Mecklenburg. Leipzig: Klinkhardt & Biermann, 1910- url p. 640.
- Gastony, G. J. 1986. Electrophoretic evidence for the origin of a fern species by unreduced spores. Amer. J. Bot. 73: 1563--1569.
- Kramer, K. U. and R. Viane. 1990. Aspleniaceae. In: K. Kubitzki et al., eds. 1990+. The Families and Genera of Vascular Plants. 1+ vol. Berlin etc. Vol. 1, pp. 52--56.
- Reichstein, T. 1981. Hybrids in European Aspleniaceae (Pteridophyta). Bot. Helv. 91: 89--139.
Notes
Contributors
- Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 10, 2012.
Data Sources
Accessed through GBIF Data Portal November 17, 2007:
- Bernice Pauahi Bishop Museum, Bishop Museum Natural History Specimen Data
- Comisión nacional para el conocimiento y uso de la biodiversidad, Herbario del Instituto de Ecología, A.C., México
- Herbarium of the University of Aarhus, The AAU Herbarium Database
- Instituto Nacional de Biodiversidad
- , Biodiversidad de Costa Rica
- Missouri Botanical Garden, Missouri Botanical Garden
- School of Life Sciences, Arizona State University, Arizona State University Vascular Plant Herbarium
- SysTax, Herbarium Universitat Ulm
- SysTax, SysTax
- USDA PLANTS, USDA PLANTS Database
Identifiers
- Biodiversity Heritage Library NamebankID: 2644554
- Catalogue of Life Accepted Name Code: ITS-17350
- Global Biodiversity Information Facility Taxonkey: 13728460
- Globally Unique Identifier: urn:lsid:ipni.org:names:17266700-1
- Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 17350
- International Plant Names Index (IPNI) ID: 17266700
- Natural Heritage Network Species Identifier: PPASP020T0
- U.S.D.A. Plant Symbol: ASMO
- Zipcode Zoo Species Identifier: 23380
Footnotes
- Wagner, Warren H. Jr., Robbin C. Moran, and Charles R. Werth "Aspleniaceae". in Flora of North America Vol. 2. Oxford University Press. Online at EFloras.org. [back]
- Warren H. Wagner Jr., Robbin C. Moran, Charles R. Werth "Asplenium". in Flora of North America Vol. 2. Oxford University Press. Online at EFloras.org. [back]
- "Asplenium monanthes". in Flora of North America Vol. 2. Oxford University Press. Online at EFloras.org. [back]
- Mean = 2,276.260 meters (7,468.045 feet), Standard Deviation = 1,380.690 based on 544 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
