Stauroneis lewisii Bahls 2012
- Dataset
- Five new species of Stauroneis (Bacillariophyta, Stauroneidaceae) from the northern Rocky Mountains, USA
- Rank
- SPECIES
- Published in
- Bahls, Loren (2012): Five new species of Stauroneis (Bacillariophyta, Stauroneidaceae) from the northern Rocky Mountains, USA. Phytotaxa 67 (1): 1-8, DOI: 10.11646/phytotaxa.67.1.1, URL: http://biotaxa.org/Phytotaxa/article/view/phytotaxa.67.1.1
Classification
- kingdom
- Chromista
- phylum
- Bacillariophyta
- class
- Bacillariophyceae
- order
- Naviculales
- family
- Stauroneidaceae
- genus
- Stauroneis
- species
- Stauroneis lewisii
etymology
Etymology: — This species is named after Meriwether Lewis (1774 – 1809), an early 19 th Century Montana explorer (Danisi 2009). Observations: — Stauroneis lewisii was reported by Bahls (2010: 121) as S. pseudoschimanskii Van de Vijver & Lange-Bertalot (2004: 57), which has elliptic-lanceolate valves with short, broadly subrostrate apices. Besides the type locality, Stauroneis lewisii has been collected from two other small lakes in southwestern Montana: Fred Burr Lake, Selway-Bitterroot Wilderness, Ravalli County, 46.3291 o N, 114.4163 o W; and Bloody Dick Pond # 6, Beaverhead County, 45.1119 o N, 113.4447 o W.
materials_examined
Type: — USA. Montana: Blodgett Lake, Selway-Bitterroot Wilderness, Ravalli County, 46.2505 o N, 114.4544 o W, 2072 m elevation, collected from rocks and sediment by U. S. Forest Service personnel on 10 September 1991. MDC sample 110901; holotype slide MDC P 3 - 4 - 1, Figs 5 – 6. Valves narrow lanceolate to linear-lanceolate with gradually attenuated subrostrate apices. Moderately deep pseudoseptum occupies each apex (Fig. 6). Valve length 25 – 38 µm; valve width 6.1 - 7.9 µm. Raphe filiform, nearly straight with somewhat inflated proximal ends. Distal raphe ends hooked in same direction. Axial area linear c. 3 x wider than raphe, widening somewhat near central area. Central stauros broad, shaped like a bow tie. Striae strongly radiate throughout, 22 – 26 in 10 µm. Areolae in striae 24 - 26 in 10 µm.
Name
- Homonyms
- Stauroneis lewisii Bahls 2012