@article {79,
	title = {Isoetes fluitans sp. nov.: The identity of Spanish plants of {\textquoteright}I. longissimum{\textquoteright}},
	journal = {Botanical Journal of the Linnean Society},
	volume = {146},
	year = {2004},
	note = {Cited By (since 1996):3Export Date: 11 November 2013Source: Scopus},
	month = {2004///},
	pages = {231 - 236},
	abstract = {Recent revision of North African specimens of Isoetes velata A. Braun and the closely related taxon l. longissimum Bory, together with Spanish material conventionally designated I. longissimum, suggests that the Spanish specimens constitute a new species, I. fluitans. This is described and illustrated. The North African taxon I. longissimum is probably not specifically distinct from I. velata. {\textcopyright} 2004 The Linnean Society of London.},
	keywords = {aquatic plant, Endemism, Iberian peninsula, Isoetaceae, taxonomy, Threatened plant},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-6344262161\&partnerID=40\&md5=621cece2b24256d4cab656a85119d395},
	author = {Romero, M.I. and Amigo, J. and Ramil, P.}
}
@article {24,
	title = {In situ O 2 dynamics in submerged Isoetes australis: Varied leaf gas permeability influences underwater photosynthesis and internal O 2},
	journal = {Journal of Experimental Botany},
	volume = {62},
	year = {2011},
	note = {Cited By (since 1996):6Export Date: 11 November 2013Source: Scopus},
	month = {2011///},
	pages = {4691 - 4700},
	abstract = {A unique type of vernal pool are those formed on granite outcrops, as the substrate prevents percolation so that water accumulates in depressions when precipitation exceeds evaporation. The O 2 dynamics of small, shallow vernal pools with dense populations of Isoetes australis were studied in situ, and the potential importance of the achlorophyllous leaf bases to underwater net photosynthesis (PN) and radial O 2 loss to sediments is highlighted. O 2 microelectrodes were used in situ to monitor pO 2 in leaves, shallow sediments, and water in four vernal pools. The role of the achlorophyllous leaf bases in gas exchange was evaluated in laboratory studies of underwater PN, loss of tissue water, radial O 2 loss, and light microscopy. Tissue and sediment pO 2 showed large diurnal amplitudes and internal O 2 was more similar to sediment pO 2 than water pO 2. In early afternoon, sediment pO 2 was often higher than tissue pO 2 and although sediment O 2 declined substantially during the night, it did not become anoxic. The achlorophyllous leaf bases were 34\% of the surface area of the shoots, and enhanced by 2.5-fold rates of underwater PN by the green portions, presumably by increasing the surface area for CO 2 entry. In addition, these leaf bases would contribute to loss of O 2 to the surrounding sediments. Numerous species of isoetids, seagrasses, and rosette-forming wetland plants have a large proportion of the leaf buried in sediments and this study indicates that the white achlorophyllous leaf bases may act as an important area of entry for CO 2, or exit for O 2, with the surrounding sediment. {\textcopyright} 2011 The Author(s).},
	keywords = {Aerenchyma, aquatic plant, CAM, malate, photorespiration, sediment O 2, submergence tolerance, tissue O 2, underwater photosynthesis, vernal rock pools, wetland plants},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-80052891489\&partnerID=40\&md5=2632d744a43a2ba980f6aec51cf382b6},
	author = {Pedersen, O. and Pulido, C. and Rich, S.M. and Colmer, T.D.}
}
