@article {118,
	title = {Isoetes microvela (Isoetaceae), a new quillwort from the coastal plain of the southeastern United States},
	journal = {Rhodora},
	volume = {100},
	year = {1998},
	note = {Cited By (since 1996):7Export Date: 11 November 2013Source: Scopus},
	month = {1998///},
	pages = {261 - 275},
	abstract = {Isoetes microvela, sp. nov., is described from cytologically confirmed hexaploid populations from the coastal plain of North Carolina. At least one population grows over thinly-buried calcareous bedrock, a rare condition on the predominantly acidic southeastern coastal plain. It is a large quillwort of periodically inundated and scoured stream banks and shallow water. It is characterized by a densely short-crested to reticulate-tuberculate megaspore ornamentation pattern intermediate in appearance between that of I. appalachiana and I. hyemalis, an exceptionally small velum covering {\textpm} 10\% of the heavily brown-streaked sporangium, and by obscurely tuberculate microspores. A key to the Isoetes of the southeastern coastal plain is presented. Isoetes microvela is suspected to represent an allopolyploid derived from the doubling of a sterile triploid hybrid, most likely I. {\texttimes}bruntonii (= I. engelmannii {\texttimes} I. hyemalis) or I. appalachiana {\texttimes} I. engelmannii. Isoetes microvela is a rare species, presently known from only two populations.},
	keywords = {Coastal plain endemic, Isoetaceae, Isoetes microvela, North Carolina, Pteridophyte},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0013638592\&partnerID=40\&md5=a11db8019e87e506ac5ab36185a8c4de},
	author = {Brunton, D.F. and Britton, D.M.}
}
@article {119,
	title = {Fungal associations in the roots of three species of Isoetes L.},
	journal = {Aquatic Botany},
	volume = {61},
	year = {1998},
	note = {Cited By (since 1996):3Export Date: 11 November 2013Source: Scopus},
	month = {1998///},
	pages = {33 - 37},
	abstract = {A fungal association has been described in the roots of three species of lsoetes which flourish during the rainy season in Rajasthan (India). The mycelium is septate, branched and forms bunches of intracellular hyphae in cortical cells of young roots. The association is symbiotic and is not influenced by habitat, i.e. while the host plant is aquatic, amphibious or terrestrial. This is the first report of a fungal association with the roots of the taxon Isoetes.},
	keywords = {Association, Fungi, Isoetes, Roots},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0032078046\&partnerID=40\&md5=889c7296fb92f9ff06715d43eac6d16b},
	author = {Sharma, B.D.}
}
@article {120,
	title = {Sulfate reduction in lake sediments inhabited by the isoetid macrophytes Littorelia uniflora and isoetes lacustris},
	journal = {Aquatic Botany},
	volume = {60},
	year = {1998},
	note = {Cited By (since 1996):22Export Date: 11 November 2013Source: Scopus},
	month = {1998///},
	pages = {307 - 324},
	abstract = {Sulfur cycling was examined in sediments inhabited with the isoetids Littorella uniflora and Isoetes lacustris in the oligotrophic soft-water Lake Kalgaard, Denmark. Based on short-term tracer incubations sulfate reduction was measured along a transect from the shore (0.6 m) to profundal sediments (4.6 m). The sulfate reduction rates were low (0.008-0.8 mmol m-2 d-1) in the sandy shallow sediments with low organic content (\&lt; 1.3 mmol C g-1 sed DW) and high redox potentials (\&gt; 100 mV), whereas sulfate reduction was higher at the deeper sites (2.7-4.6 mmol m-2 d-1) with high organic content (max. 11.5 mmol C g-1 sed DW) and lower redox potentials (\&lt; 100 mV). High concentrations of dissolved organic carbon (DOC) were found in the low particulate organic sediments (up to 18.4 mM), and most of the DOC pool consisted of acetate (40-77\%). Reoxidation of sulfides due to root oxygen release was probably important at all sites and a positive efflux of sulfate across the sediment-water interface was measured, attaining rates (up to 4.8 mmol m-2 d-1) similar to the sulfate reduction rates. Reoxidation of sulfides was also manifested by high fraction (\&gt; 80\%) of reduced sulfides being accumulated as elemental sulfur or pyrite (chromium reducible sulfur, CRS). The largest pools of CRS were found in high organic sediment with vertical distributions resembling those of the sulfate reduction rates. The overall effect of isoetid growth on sulfur cycling in the rhizosphere is a suppression of sulfate reduction in low organic sediments and the governing of sulfide reoxictation in sediments with higher organic content.},
	keywords = {Dissolved organic carbon, Freshwater, Submerged macrophytes, Sulfate reduction, Sulfur pools},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0032051759\&partnerID=40\&md5=cedb9f2713f49909e7234473be0de561},
	author = {Holmer, M. and Jensen, H.S. and Christensen, K.K. and Wigand, C. and Andersen, F.O.}
}
@article {115,
	title = {Studies on Annalepis from Middle Triassic along the Yangtze river and its bearing on the origin of Iso{\"e}tes},
	journal = {Acta Botanica Sinica},
	volume = {40},
	year = {1998},
	note = {Cited By (since 1996):6Export Date: 11 November 2013Source: Scopus},
	month = {1998///},
	pages = {768 - 774},
	abstract = {Specimens of Annalepis have been found from the Middle Triassic Series in the Yangtze River valley and described, including a new species. Annalepis is similar to the living plant, Iso{\"e}tes , in many aspects, such as the herb with a corm, more or less clustering sporophylls, presence of a ligule, monolete suture microspores of Aratrisporites -type and trilete megaspores, etc. The similarities of features between the two plants indicate their close affinities and that A . brevicystis might be the ancestry of Iso{\"e}tes . Since there is a ligule on the sporophyll of Pleuromeia, the Pleuromeiaceae represented by Pleuromeia could be allied to the Iso{\"e}taceae, and both families should belong to Iso{\"e}tales. Iso{\"e}tales represents a distinct evolutionary sequence and is inferred as being evolved probably from Palaeozoic Sigillaria . In Mesozoic age, two evolutionary lines are proposed: one as a line from Pleuromeia to Nathorstiana in relation to wood-monopolar rhizophore; the other as a line from Annalenis to Iso{\"e}tes related to herb-bipolar corm. Annalepis appeared almost simultaneously in the Yangtze River valley in early Middle Triassic, but the distribution of Annalepis was concentrated from east to west during middle-late Middle Triassic, in relation to the marine regression which occurred cyclically from east to west on the Yangtze Platform during that time.},
	keywords = {Annalepis, Evolution, Isoetes, Middle Triassic, Origin, Yangtze river valley},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0032414084\&partnerID=40\&md5=b6306b3189c6672809b1bab17e2dd168},
	author = {Meng, F.-S.}
}
@article {116,
	title = {Fungal Associations with Isoetes Species},
	journal = {American Fern Journal},
	volume = {88},
	year = {1998},
	note = {Cited By (since 1996):5Export Date: 11 November 2013Source: Scopus},
	month = {1998///},
	pages = {138 - 142},
	abstract = {The fungal associations present in the roots and corms of four species of Isoetes found in Rajasthan, India, are described. Fungal fruiting bodies and chlamydospores are assigned to the mycorrhizal genus Glomus, and the septate branched intracellular mycelium is assigned to the genus Rhizoctonia of the Deuteromycotina.},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0008039063\&partnerID=40\&md5=1128f92d04a506b68b8c2e7085428343},
	author = {Sharma, B.D.}
}
@article {117,
	title = {Anatomy of scales and phyllopodia of Isoetes of Rajasthan},
	journal = {Phytomorphology: An International Journal of Plant Morphology},
	volume = {48},
	year = {1998},
	note = {Export Date: 11 November 2013Source: Scopus},
	month = {1998///},
	pages = {269 - 272},
	abstract = {Anatomy of scales and phyllopodia of the four species of Isoetes found in Rajasthan was studied. The shapes triangular to bonnet and sizes of scales and phyllopodia vary with species; 3-12 mm {\texttimes} 2-9 mm in size, parenchymatous and have intermingled roots, sporangia, spores, fungal hyphae and fruiting bodies.},
	keywords = {Anatomy, Isoetes, Phyllopodia, Rajasthan, Scales},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-1542573923\&partnerID=40\&md5=d37103324e9fa9109d8eeb159846560c},
	author = {Sharma, B.D.}
}
