font settings and languages

Font Size: Large | Normal | Small
Font Face: Verdana | Geneva | Georgia
Languages:

Pteris vittata

(Chinese Brake)

Overview

[ Back to top ]

Interesting Facts

[ Back to top ]
 

Common Names

[ Back to top ]

Common Names in English:

Chinese Brake, Chinese Ladder Brake, Ladder Brake, Ladder Brake Fern

Description

[ Back to top ]

Family Pteridaceae

Genera ca. 40, species ca. 1000 (13 genera, 90 sp: worldwide.

Considerable disagreement exists concerning the circumscription and proper name of this family . The taxa comprising the Pteridaceae in this treatment were assigned to the Sinopteridaceae and Pteridaceae by D. B . Lellinger (1985) and were included in five families by R. E. G. Pichi-Sermolli (1977). The broad concept followed here is similar (except for the exclusion of Ceratopteris ) to that espoused by R. M. Tryon and A. F. Tryon (1982), who applied the name Pteridaceae to the group. Until very recently, the newer name Adiantaceae was more commonly used.

As represented in North America, Pteridaceae comprise three major evolutionary lines (the adiantoids, the pteroids, and the cheilanthoids). Characteristics holding the family together include abaxial (usually submarginal ) sori that lack indusia or are protected by a reflexed or revolute leaf margin , spores that are usually globose-tetrahedral and trilete, and chromosome base numbers of 30 or 29 (rarely 27). The xeric-adapted members of the family (particularly the cheilanthoids) have undergone extensive parallel and convergent evolution, and they have frustrated attempts to produce a natural generic classification based on macromorphologic characteristics alone. Although some workers have aggregated species into a few large genera (e.g. , J. T. Mickel 1979b), most tend to recognize smaller segregate genera based on a combination of morphologic, chromosomal, and biochemical data. The latter approach seems to provide a more useful, evolutionarily informative classification and is the one adopted here. Aspidotis and Notholaena are maintained here as distinct from Cheilanthes, and three recently described genera ( Argyrochosma, Astrolepis, and Pentagramma ) have been incorporated into the treatment. The reasons for these changes in generic circumscription are discussed under the individual genera.[1]

Genus Pteris

Plants terrestrial or on rock. Stems erect or creeping , branched; scales pale brown to black, concolored, elongate , margins entire. Leaves monomorphic , clustered or closely spaced, 1--20 dm. Petiole straw-colored, green, brownish red to purple black, longitudinally ridged , 2--3-grooved adaxially, scaly at base , glabrous or scaly distally, with 1 (less often 2 or more) vascular bundle. Blade oblong to lanceolate to deltate, 1--4-pinnate, herbaceous to leathery, abaxially and adaxially glabrous or sometimes pubescent or scaly, adaxially dull, not striate ; rachis straight. Ultimate segments of blade sessile to short-stalked, linear to oblong-lanceolate, 1.5--8 mm wide; base truncate or narrowed to stalk , stalk when present green, not lustrous ; margins plane or reflexed to form false indusia. Veins in leaves conspicuous , free (except in sori) and forking well above base of segment, or highly anastomosing. False indusia pale, scarious , covering sori. Sporangia intramarginal , sori usually continuous except at pinna or segment apex and sinuses, paraphyses present. Spores brown, trilete, tetrahedral , rugate and/or tuberculate , usually with prominent equatorial flange . x = 29.

Species ca. 300 (5 species and 1 h: worldwide, warm and tropical regions .[2]

Physical Description

Species Pteris vittata

Stems stout, short-creeping, densely scaly ; scales pale brown. Leaves clustered, 1--10 dm. Petiole green to pale brown, 1--30 cm, densely scaly; scales dense proximally, extending to and along rachis. Blade oblanceolate , 1-pinnate, (15--) 25--50(--80) × (6--) 13--25 cm; rachis not winged . Pinnae numerous , separated proximally, closely spaced to barely overlapping distally, not remaining green through winter, not decurrent on rachis, not articulate to rachis, linear-lanceolate to linear-attenuate, simple , 2--18 cm × 4--9 mm; base asymmetrically cordate to widened or truncate ; margins serrulate , prominently so near apex; apex acuminate, attenuate, or acute; scales of rachis grading into uniseriate hairs on abaxial costae, or hairs absent on abaxial costae; proximal pinnae not divided or lobed . Veins free , forked . Sori narrow, blade tissue exposed abaxially. 2 n = 116. [source]

Pteris vittata varies exceedingly in size, density of scales on the rachis, presence or absence of hairs on the abaxial costae, and overall color and aspect of the leaf. As a result, it may occasionally bear a resemblance to forms of P. × delchampsii W. H. Wagner & Nauman, the hybrid between P. bahamensis and P. vittata. [source]

Habit: Forb/herb

Size/Age/Growth

Size: 36-48" tall.

Habitat

Roadsides and other disturbed habitats ; coastal plain ; 0--50 m (Ref. 103057).

Biology

[ Back to top ]

Reproduction

Duration: Perennial

Growth

Culture: Space 36-48" apart.

Sunlight: Sun Exposure: Sun to Partial Shade.

Temperature: Cold Hardiness: 8a, 8b, 9a, 9b, 10a, 10b, 11. (map)

Taxonomy

[ Back to top ]

Synonyms

Pycnodoria vittata (Linnaeus) Small

Notes

Name Status: Accepted Name .

Last scrutiny: 15-Mar-2000

Similar Species

[ Back to top ]

Members of the genus Pteris

ZipcodeZoo has pages for 42 species, subspecies, varieties, forms, and cultivars in this genus:

P. altissima (Tall Brake) · P. arborea (Tree Brake) · P. argyraea (Silver Brake) · P. atropurpurea (Purple-Stem Cliff-Brake) · P. bahamensis (Bahama Brake) · P. biaurita (Thinleaf Brake) · P. cretica (Brake) · P. cretica var. albolineata (Albolineata Table Fern) · P. cretica var. americana (Cretan Brake) · P. cretica var. cretica (Cretan Brake) · P. cretica var. nervosa (Cretan Brake) · P. cretica 'Mayi' (Birds Foot Fern) · P. cretica 'Parkeri' (Birds Foot Fern) · P. deflexa (Thickleaf Brake) · P. delchampsii (Delchamps' Brake) · P. dentata (Toothed Brake) · P. denticulata (Toothed Brake) · P. ensiformis (Slender Brake) · P. ensiformis var. evergemiensis (Silver Lace Fern) · P. ensiformis 'Victoriae' (Victoria Brake Fern) · P. excelsa (Waimakanui) · P. grandifolia (Elephantleaf Brake) · P. hillebrandii (Hillebrand's Brake) · P. incisa (Batwing Fern) · P. irregularis (Zigzag Brake) · P. lendigera (Nit-Bearing Lip Fern) · P. lineata (Shoestring Fern) · P. longifolia (Long-Leaf Brake) · P. lydgatei (Lidgate's Brake) · P. multifida (Spider Brake) · P. mutilata (Asian Brake) · P. nipponica (Fern) · P. plumula (Striped Brake) · P. pungens (Sharp Brake) · P. quadriaurita 'Tricolor' (Pteris) · P. ternifolia (Trans-Pecos Cliffbrake) · P. thalictroides (Watersprite) · P. tremula (Australian Brake) · P. tripartita (Giant Brake) · P. vittata (Chinese Brake) · P. × delchampsii (Delchamps' Brake) · P. x hillebrandii (Hillebrand's Brake)

More Info

[ Back to top ]

Further Reading

[ Back to top ]

Notes

[ Back to top ]

Contributors

Data Sources

Accessed through GBIF Data Portal November 15, 2007:

Identifiers

Footnotes

  1. Michael D. Windham "Pteridaceae". in Flora of North America Vol. 2. Oxford University Press. Online at EFloras.org. [back]
  2. Clifton E. Nauman "Pteris". in Flora of North America Vol. 2. Oxford University Press. Online at EFloras.org. [back]
Last Revised: 7/15/2012