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Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
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Perennial, small, fleshy, generally glabrous; caudex generally underground, unbranched; roots glabrous with bulblets or plantlets or not.
Leaf: generally 1 per caudex per yr, divided into 2 facing parts with a common stalk,(0)1 sterile and 1(2) fertile ( fertile occasionally aborted); sterile photosynthetic part (trophophore) separated from spore-bearing part (sporophore) at to well above ground level; trophophore simple to compound, veins free and forked or netted with included veinlets; sporophore simple to compound, or 0 in young plants.
Sporangia: dehiscent into 2 valves, ± 1 mm wide, thick-walled.
10 genera, 80–100 species: ± worldwide, generally rare or overlooked. [Hauk et al. 2003 Molec Phylogen Evol 28:131–151; Kato 1987 Gard Bull Straits Settlem 40:1–14] —Scientific Editors: Alan R. Smith, Bruce G. Baldwin, Thomas J. Rosatti.
Unabridged note: Distantly related to most (leptosporangiate) ferns. Haploid (gametophyte) generation underground. Both diploid and haploid generations obligately mycorrhizal. The family Psilotaceae (whisk ferns, 2 genera), sister to Ophioglossaceae, is represented in CA (SCo) by 1 (of 2 total) apparently introduced species, Psilotum nudum (L.) P. Beauv. Psilotum is easily distinguished by the dichotomously branching, almost leafless green stems, lack of roots, and large (2–3 mm) 3-lobed sporangia; sporangia are borne on the adaxial (upper) side of a minute (± 1 mm) forked leaf. Pantrop, subtrop (nearest native populations in AZ and in Sonora, Mex); expected in cultivation areas, especially at bases of old palms, possibly brought in on root masses as subterranean gametophytes. [Pryer et al. 2004 Amer J Bot 91:1582–1598]
Key to Ophioglossaceae
Roots smooth, pale, generally with bulblets or plantlets.Key to Ophioglossum
Leaf: trophophore simple, linear to lanceolate or cordate, not midribbed, entire, firm, herbaceous, tip rounded, acuminate, or often mucronate, veins netted with included free branched or unbranched veinlets; sporophore generally > sterile, unbranched, slender.
Sporangia: in 2 rows, sunken in a linear, long-stalked axis.
20–25 species: generally warm temperate, tropics. (Greek: snake's tongue, from extended sporophore of leaf) Incl highest chromosome numbers known in vascular plants.
Caudex < 20 mm, 4 mm wide.
Leaf: blade generally ± folded, thick, green, sporophore 1–2.5 × sterile.
Sporangia: 8–15 pairs; rows of sporangia 8–15 mm; sterile tip of fertile stalk 0.3–1 mm.
Uncommon but sometimes locally abundant, often overlooked. Grassy pastures, chaparral, vernal pool margins; 60–450 m. n&c Sierra Nevada Foothills, San Joaquin Valley, Central Coast, South Coast;
Previous taxon: Ophioglossum
Next taxon: Ophioglossum pusillum
Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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|Bioregions in which taxon occurs||Red area (if present) is the part of the bioregion lying between the upper and lower elevation limits of the taxon;|
markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
Chart based on elevation range in Manual and elevations and coordinates of CCH records.
Data provided by the participants of the Consortium of California Herbaria.
Note: About half of the CCH records include both elevation and coordinates.
|Map made in collaboration with Scott Loarie. Data provided by the participants of the Consortium of California Herbaria.
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