Studies on Morphology and Affinity of the Parkeriaceae I. Morphological Observations of Ceratopteris thalictroides

Pal, Niranjan; Pal, Sunanda

doi:10.1086/336183

Cited by 13 publications

(11 citation statements)

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“…Besides those characters, the number of annulus cells of sporangia also may be a useful diagnostic for the groups, because one-way layout ANOVA followed by Scheffé's test showed that it differed significantly among them. There is no fine difference in the characteristics of scales and spores among the groups, which are almost the same as reported by Pal and Pal (1962) and Dettmann and Clifford (1991), respectively.…”

Section: Cryptic Species In Fernssupporting

confidence: 87%

Cryptic species in the fern Ceratopteris thalictroides (Parkeriaceae). III. Referential diagnostic characters of three cryptic species

Masuyama

2008

J Plant Res

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Three cryptic species of Ceratopteris thalictroides, named the south type, the north type and the third type, were examined for their morphological characteristics, using sporophytes cultivated under common conditions. The discriminant analysis for leaf characters followed by one-way layout ANOVA or Kruskal-Wallis test for selected combinations of characters revealed that the following characters may be effective for identifying the three types: the relative lengths of stipe to blade and to pinna, the degree of dissection, the segment densities on rachis and pinna rachis, and the elongation degree of ultimate segments. The number of annulus cells on sporangia also proved to be a possible distinguishing character. As morphological data were obtained from a limited number of cultivated sporophytes, they are regarded as not definitive, but only referential diagnostic characters of the types and should be utilized not solely, but collectively, to avoid identification errors of the types. An identification trial using herbarium specimens proved these diagnostic characters to be useful to a considerable degree.

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Section: Cryptic Species In Fernssupporting

confidence: 87%

Cryptic species in the fern Ceratopteris thalictroides (Parkeriaceae). III. Referential diagnostic characters of three cryptic species

Masuyama

2008

J Plant Res

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“…The sterile fronds of C. thalictroides (L.) Brongn. were reported by Pal and Pal (1962) to have 52 and 64 stomata/mm 2 on their upper and lower surfaces respectively; these data may have been from aerial leaves. Details of stomatal structure are shown by Ford (1902) and Pal and Pal (1962) for C. thalictroides; those of C. pteridoides are similar.…”

Section: Cryptogamic Plantsmentioning

confidence: 78%

Anatomical observations on floating leaves

Kaul

1976

Aquatic Botany

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An examination of 24 genera of aquatic plants having floating leaves and leaf-like thalli has been made. Functional stomata occur on the adaxial sides of floating leaves of angiosperms and some ferns, and in some floating leaves there are stomata on the abaxial surface as well. Most floating leaves have prominently chambered mesophyll, and in some instances the chambers are locally enlarged and form buoys.

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“…Äî÷åðíèå îñîáè, âîçíèêøèå èç âûâîäêîâûõ ïî÷åê íà ïëàâàþùèõ ìàòåðèíñêèõ ðàñòåíèÿõ, ÿâëÿþòñÿ èçíà÷àëüíî ïëàâàþùèìè. Èññëåäîâàíèÿ N. Pal è S. Pal [1962] ïîêàçàëè, ÷òî îñîáè Ceratopteris, ðàñòóùèå íà ïî÷âå, âñåãäà èìåëè ìåíüøèå ðàçìåðû, íåaeåëè ïëàâàþùèå.…”

Section: ïàïîðîòíèêè-ãèäðîôèòûunclassified

Adaptive Strategies of Homosporous Helophytic and Hydrophytic Ferns

2015

SEJ

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Íà îñíîâå èññëåäîâàíèÿ ïàïîðîòíèêîâ ãåëîôèòîâ è ãèäðîôèòîâ, à òàêaeå ñ ó÷åòîì ëèòåðàòóðíûõ äàííûõ âûÿâëåíû àäàïòèâíûå ñòðàòåãèè èõ ñïîðîôèòîâ. Ïðîâåäåí êîìïëåêñíûé àíàëèç ôîòîñèíòåòè-÷åñêîãî àïïàðàòà ðàñòåíèé íà ðàçíûõ óðîâíÿõ åãî îðãàíèçàöèè: à) âàèé; á) êëåòîê ìåçîôèëëà; â) ïëàñòèäíîãî àïïàðàòà. Ñðåäè ýòèõ âèäîâ øåë îòáîð ðàñòåíèé, õàðàêòåðèçóþùèõñÿ ðàçíîîáðàçíûìè áèîìîðôàìè, àêòèâíûì âåãåòàòèâíûì ðàçìíîaeåíèåì è óñêîðåííûì ïðîõîaeäåíèåì îíòîãåíåòè÷åñêèõ ôàç, ïðè ýòîì âîçíèêàëè ñòðóêòóðû, ñïîñîáñòâóþùèå àýðàöèè, ïîääåðaeàíèþ îïòèìàëüíîãî âîäíîãî áàëàíñà è ýôôåêòèâíîãî ôîòîñèíòåçà.

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Studies on Morphology and Affinity of the Parkeriaceae I. Morphological Observations of Ceratopteris thalictroides

Cited by 13 publications

References 1 publication

Cryptic species in the fern Ceratopteris thalictroides (Parkeriaceae). III. Referential diagnostic characters of three cryptic species

Cryptic species in the fern Ceratopteris thalictroides (Parkeriaceae). III. Referential diagnostic characters of three cryptic species

Anatomical observations on floating leaves

Adaptive Strategies of Homosporous Helophytic and Hydrophytic Ferns

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