identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
B9270575E4052C1DFF2327084BC6FE19.text	B9270575E4052C1DFF2327084BC6FE19.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Fragilaria pinnata var. subcapitata Frenguelli 1930	<div><p>Fragilaria pinnata var. subcapitata Frenguelli 1930. Revista Chilena de Historia Natural, Vol. 34, p. 199, figs 35, 4. Here Figs 1 –11.</p> <p>Original description:— “ Difiere de todas las demás variedades de esta especie por sus contornos valvares estrechamente lanceolados, con extremos subcapitados, siendo ligada al tipo por formas de transición. Largo mm. 0,019 a 0,030, ancho mm. 0,006; estrías robustas, 7½ a 8 en mm. 0,01.” Freely translated as: It differs from the rest of the varieties by its narrowly lanceolate valve outline, with subcapitate apices, linked to the type through transitional forms. Length 19–30 µm, width 6 µm; striae robust, 7.5–8.0 in 10 µm (measurements converted from mm to µm by us).</p> <p>Expanded description:— Valves heavily silicified, narrowly lanceolate with rostrate to subcapitate apices, more protracted in larger specimens, slightly heteropolar (Figs 2–7). Sternum narrow, linear to lanceolate, sunken with respect to virgae in external view (Figs 8–9). Striae uniseriate, parallel at valve center to slightly radial near apices, with typical ‘punch-hole’ appearance, continuous onto valve mantle (Figs 10 –11). Striae at the same level as sternum in external view. Slit-like areolae, apically elongated, decreasing in size towards sternum and valve mantle (Figs 8 –11). Volae hardly visible in external view, growing from internal part of vimines. Virgae somewhat wider than striae and elevated above sternum and striae (Figs 9, 11). Spines located on virgae, solid, and base occupies 2/3 of virgae width; body cylindrical with tips flattened and forked (Figs 10 –11, arrowheads). Spines present at valve poles. Apical pore fields present at both poles, modest, formed of few round pores (Fig. 11, arrow).</p> <p>Morphometric data: Length 16.0–21.5 µm; width 3.5–4.0 µm; length:width 4.8–5.2; 10–12 striae in 10 µm; 60–70 areolae in 10 µm.</p> <p>Type:— CHILE, Antofagasta Province, Calama: Calama Looser, diatomite. Frenguelli Collection, unknown date, (Lectotype designated here S/ N Slide N °4! England finder L/46 = Fig. 2).</p> </div>	https://treatment.plazi.org/id/B9270575E4052C1DFF2327084BC6FE19	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Vouilloud, Amelia A.;Guerrero, José M.;Morales, Eduardo A.	Vouilloud, Amelia A., Guerrero, José M., Morales, Eduardo A. (2022): Fragilaria pinnata var. subcapitata Frenguelli, typification and current taxonomic status. Phytotaxa 566 (1): 133-139, DOI: 10.11646/phytotaxa.566.1.8, URL: http://dx.doi.org/10.11646/phytotaxa.566.1.8
