Stipellula nitens Roser & Hamasha

Stipellula nitens (Ball) Röser & Hamasha (Figure 65 (2)). Lemma dorsal surface: Characterised by rectangular to quadrangular long cells of (4–) 5–9(–11) × 10–12(–14) µm, smooth to undulated walls, 4–6 µm thick, linear distribution. Short cells: main Silica cells (8–)10–16(–18) × (9–)10– 14(–17) µm, circular to ovoid, frequently solitary, occasionally in pairs or threes with cork cells, between long cells, density 65–78(–82) silica cells/100 µm 2; Cork cells (2–)4–7(–8) × 12–18 µm, fusiform to reniform, sporadic, in all cases with a silica cell. Spines and hairs: Hooks not studied; Prickles not studied; Macro-hairs 500–1200(1450) µm long, circular to obovate base 21–34(–36) × 20–28(–30) µm, irregularly distributed across entire surface. Lemma apical surface: Characterised by similar long cell morphology, wall characteristics and distribution, length to 32 µm. Short cells: Silica cells equal in size, morphology and distribution, lower density of 41 silica cells/100 µm 2; Cork cells of equal size, morphology, distribution and density. Spines and hairs: Hooks circular to ovoid base 16–22(–26) × 14–20(–25) µm, sporadic, solitary, occasionally with a silica cell, low density <4 hooks/100 µm 2; Prickles obovate to circular base (17–)20–28(–31) × 18–26(–28) µm, and up to 35 µm long, irregularly distributed between long cells, solitary, density <2 prickles/100 µm 2; Macro-hairs equal in size, morphology and distribution, more frequent at distal part of lemma apex. Material studied: Morocco: Demnate, Marrakech, 2230 m.a.s.l., 10-VI-2021, M. Chamboleyron, ECWP n.n.; Tizi a’Tichka, 2270 m.a.s.l., 30-VI-2020, M. Chamboleyron, ECWP n.n.

Institutions

Publication Details

Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2025-05-06
DOI
https://doi.org/10.5281/zenodo.16727733
Primary Topic
Diatoms and Algae Research
Type
article
Field-Weighted Citation Impact
0.00
Controls
|||
ALL TIME
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
article

Stipellula nitens Roser & Hamasha

Zenodo (CERN European Organization for Nuclear Research)
Diatoms and Algae Research
article

Stipellula nitens Roser & Hamasha

article en

Abstract

Stipellula nitens (Ball) Röser & Hamasha (Figure 65 (2)). Lemma dorsal surface: Characterised by rectangular to quadrangular long cells of (4–) 5–9(–11) × 10–12(–14) µm, smooth to undulated walls, 4–6 µm thick, linear distribution. Short cells: main Silica cells (8–)10–16(–18) × (9–)10– 14(–17) µm, circular to ovoid, frequently solitary, occasionally in pairs or threes with cork cells, between long cells, density 65–78(–82) silica cells/100 µm 2; Cork cells (2–)4–7(–8) × 12–18 µm, fusiform to reniform, sporadic, in all cases with a silica cell. Spines and hairs: Hooks not studied; Prickles not studied; Macro-hairs 500–1200(1450) µm long, circular to obovate base 21–34(–36) × 20–28(–30) µm, irregularly distributed across entire surface. Lemma apical surface: Characterised by similar long cell morphology, wall characteristics and distribution, length to 32 µm. Short cells: Silica cells equal in size, morphology and distribution, lower density of 41 silica cells/100 µm 2; Cork cells of equal size, morphology, distribution and density. Spines and hairs: Hooks circular to ovoid base 16–22(–26) × 14–20(–25) µm, sporadic, solitary, occasionally with a silica cell, low density <4 hooks/100 µm 2; Prickles obovate to circular base (17–)20–28(–31) × 18–26(–28) µm, and up to 35 µm long, irregularly distributed between long cells, solitary, density <2 prickles/100 µm 2; Macro-hairs equal in size, morphology and distribution, more frequent at distal part of lemma apex. Material studied: Morocco: Demnate, Marrakech, 2230 m.a.s.l., 10-VI-2021, M. Chamboleyron, ECWP n.n.; Tizi a’Tichka, 2270 m.a.s.l., 30-VI-2020, M. Chamboleyron, ECWP n.n.

Zenodo (CERN European Organization for Nuclear Research)
Mohammed V University (MA), Government of Extremadura (ES)
Openalex Percentile: Top 62%
Diatoms and Algae Research
AI Navigator

Ask Laika to Summarize, Analyze, and Connect papers live on the map.

Summarize Papers & Methodologies

Extract key findings, datasets, and comparative methods across publications.

Benchmark Rankings & Visual Analytics

Rank top research institutions, authors, funders, topics, and journals by Field-Weighted Citation Impact (FWCI) and paper volume with instant charts.

Connect Distant Disciplines

Bridge topological clusters on the map to find hidden collaborative intersections.

Stipellula nitens Roser & Hamasha · Zenodo (CERN European Organization for Nuclear Research) (2025) | TGRS Research Map | TGRS