Ophioglossaceae Martinov
  • Tekhno-Bot. Slovar. 438. 1820. (27 Mar 1820)


This taxon is accepted by World Flora Online consortium
Notes: More details could be found in The Plant List v.1.1. Originally in The Plant List v.1.0

General Description

Plants perennial, mostly terrestrial, rarely epiphytic, usually small and fleshy, lacking sclerenchyma. Roots lacking root hairs, unbranched or with a few narrow lateral branches [rarely dichotomously branched], fibrous or fleshy, sometimes producing vegetative buds. Rhizome mostly erect, less often horizontal, rarely branched, eustelic, glabrous or hairy. Fronds 1 to few per plant, monomorphic, vernation nodding (not circinate), erect or folded, stipe base dilated, clasping, forming open or fused sheath surrounding successive leaf buds; buds glabrous or with long, uniseriate hairs; common stipe usually dividing into sterile, laminate, photosynthetic portion (trophophore) and fertile, spore-bearing portion (sporophore); sterile lamina ternately or pinnately compound to simple, rarely absent, glabrous or with scattered, long, uniseriate hairs, especially on stipe and rachis; veins anastomosing or free, pinnate, or palmate. Sporophores 1 per frond [rarely more], spikelike or pinnately branched; sporangia exposed or embedded, sometimes clustered on very short lateral branches, wall 2 cells thick, annulus absent; spores many (> 1000) per sporangium, globose-tetrahedral, trilete, thick-walled, surface rugate, tuberculate, baculate (with projecting rods usually higher than wide), sometimes joined in delicate network, mostly with ± warty surface. Gametophytes subterranean, usually fleshy, mycorrhizal, non-photosynthetic, orbicular or linear. x = 30, (44), 45, (46), 94.

Four(-nine) genera and ca. 80 species: nearly worldwide; three genera and 22 species (two endemic) in China.

Ching Ren-chang, Fu Shu-hsia, Wang Chu-hao & Shing Gung-hsia. 1959. Ophioglossaceae, Botrychiaceae, and Helminthostachyaceae. In: Ching Ren-chang, ed., Fl. Reipubl. Popularis Sin. 2: 6-26, 329-330.

Morphology

"Terrestrial, rarely epiphytic (none in W.Africa) herbs"

"Leaves few or solitary, simple (Ophioglossum) or decompound (Botrychium) with a sterile foliaceous segment and fertile non–foliaceous dorsal segment, arising from a common stipe; fertile segments simple, linear (Ophioglossum), or compound"

  Bibliography

  • 1
  • 2 Tekhno-Bot. Slovar. 438. 1820. (27 Mar 1820)

 Information From

Plants Of the World Online Portal
https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
http://www.plantsoftheworldonline.org/terms-and-conditions
  • A
Flora Of China @ efloras.org
http://www.efloras.org/flora_page.aspx?flora_id=2
'Flora of China @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=2 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  • B All Rights Reserved
Ophioglossaceae
World Flora Online Data. 2017.
  • C CC0 1.0 Universal (CC0 1.0).
World Flora Online consortium
http://about.worldfloraonline.org/
World Flora Online Data. 2017.
  • D CC0 1.0 Universal (CC0 1.0).