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Figure 6 from: Ruiz-Domínguez C, Vovides AP, Sosa V (2019) Systematic relevance of pollen morphology in tribe Hylocereeae (Cactaceae). PhytoKeys 128: 121-140. https://doi.org/10.3897/phytokeys.128.35842
Figure 6 Principal Component Analysis graph. A Scatterplot displaying projections in a multidimensional space of the pollen grain characters: Apocolpium (A), Mesocolpium (M), Equatorial diameter in polar view (EDP) Exine length (EL), Polar Area Index (PAI), Equatorial diameter (ED), Polar axis (PA), Shape class (PE), Spinule length (SL), Spinule base (SB), Perforation diameter (PD). PC1 explains 44% of the variance and PC2 explains 18.4% of the variance B Sorting of the 27 species of tribe Hylocereeae, in relation to the morphometric variables of pollen grains.
Figure 3 from: Ruiz-Domínguez C, Vovides AP, Sosa V (2019) Systematic relevance of pollen morphology in tribe Hylocereeae (Cactaceae). PhytoKeys 128: 121-140. https://doi.org/10.3897/phytokeys.128.35842
Figure 3 Pollen grains of tribe Hylocereeae (Scanning Electron Microscope photographs). Left polar view, right equatorial view AAcanthocereus tetragonus (C. Ruiz et al. 576) BDisocactus ackermanii (R. Torres et al. 309) CEpiphyllum oxypetalum (C. Ruiz et al. 640) DSelenicereus costaricensis (C. Ruiz et al. 555) ES. escuintlensis (C. Ruiz et al. 635) FS. guatemalensis (M. Véliz et al. 20227) GS. minutiflorus (C. Ruiz et al. 627) HS. ocamponis (M. Cházaro 7334) IS. polyrhizus (C. Ruiz et al. 566) JS. sp. (C. Ruiz et al. 608).
Figure 4 from: Ruiz-Domínguez C, Vovides AP, Sosa V (2019) Systematic relevance of pollen morphology in tribe Hylocereeae (Cactaceae). PhytoKeys 128: 121-140. https://doi.org/10.3897/phytokeys.128.35842
Figure 4 Pollen grains of tribe Hylocereeae (Scanning Electron Microscope photographs). A–D: Left polar view, right equatorial view AS. undatus (C. Ruiz et al. 560) BWeberocereus tunilla (C.K. Horich BGA 58344) CS. setaceus (H. Bravo et al. 2755). D–J: left polar view, left details of spinules and perforations DS. megalanthus (C. Ruiz et al. 563) ES. stenopterus (C.K. Horich s.n.) FS. triangularis (C. Gómez-Hinostrosa 2110) GKimnachia ramulosa (L. Velásquez et al. 4884) HPseudorhipsalis amazonica (E. Gudiño 145) IS. alliodorus (A. Ruiz Velazco et al. 86) JS. glaber (C.K. Horich BGA 57239).
Figures 1- 2 from: Bukhtiyarova LN (2019) The genus Eunotia Ehrenb. (Bacillariophyta) in the Cheremsky Nature Reserve, Ukrainian Polissya, and refined terminology relevant to the raphe system morphology. PhytoKeys 128: 1-31. https://doi.org/10.3897/phytokeys.128.35566
Figures 1- 2 - Location of the studied area 1 The Cheremsky Nature Reserve on the map of Ukraine, indicated by red dot 2 map-scheme of the Cheremsky Nature Reserve.
Figure 1 from: Ruiz-Domínguez C, Vovides AP, Sosa V (2019) Systematic relevance of pollen morphology in tribe Hylocereeae (Cactaceae). PhytoKeys 128: 121-140. https://doi.org/10.3897/phytokeys.128.35842
Figure 1 Morphological variation in tribe Hylocereeae. AAporocactus martianus (Photo S. Avendaño) BDisocacus ackermannii (Photo C. Ruiz) CKimnachia ramulosa subsp. ramulosa (From Flora de Nicaragua, O.M. Montiel) DSelenicereus atropilosus (From Hunt 2006) EEpiphyllum hookeri (Photo C. Ruiz) FPseudorhipsalis amazonica (From Mobot - Hammel 24524) GAcanthocereus tetragonus (Photo C. Gómez-Hinostrosa) HSelenicereus (Hylocereus) undatus (Photo C. Ruiz) IWeberocereus tunilla (From Mobot – B. Hammel 22442).
Figures 7-12a from: Bukhtiyarova LN (2019) The genus Eunotia Ehrenb. (Bacillariophyta) in the Cheremsky Nature Reserve, Ukrainian Polissya, and refined terminology relevant to the raphe system morphology. PhytoKeys 128: 1-31. https://doi.org/10.3897/phytokeys.128.35566
Figures 7-12a - New and rare in Ukraine species of Eunotia Ehrenb. from the Cheremsky Nature Reserve. 7–8a Eunotia julma Lange-Bert. in Lange-Bertalot et al., arrow indicates distal end of raphe slit, double arrow – funnel-like lacuna, terminal fissure is between the arrows 9 Eunotia sp. 1 (cf E. formica Ehrenb.) 10, 11 Eunotia formicina Lange-Bert. in Lange-Bertalot et al. 12, 12a Eunotia jarensis Lange-Bert. et al., arrow indicates rimoportula. Figs 7, 9–11 LM 8, 8a outside valve surface 12, 12a inside valve surface, SEM. Scale bars: 10 µm (7–17); 3 µm (8a); 2 µm (12a).
Figures 4-6b from: Bukhtiyarova LN (2019) The genus Eunotia Ehrenb. (Bacillariophyta) in the Cheremsky Nature Reserve, Ukrainian Polissya, and refined terminology relevant to the raphe system morphology. PhytoKeys 128: 1-31. https://doi.org/10.3897/phytokeys.128.35566
Figures 4-6b - New in Ukraine species Eunotia genuflexa Nörpel-Schempp in Lange-Bertalot and Metzeltin, outside valve surface, SEM. Arrows indicate distal ends of raphe slits, double arrows – funnel-like lacunae, terminal fissures are between the arrows. Scale bars: 10 µm (4–6); 2 µm (4a, 5a, 6a); 1 µm (6b).
Figure 2 from: Ruiz-Domínguez C, Vovides AP, Sosa V (2019) Systematic relevance of pollen morphology in tribe Hylocereeae (Cactaceae). PhytoKeys 128: 121-140. https://doi.org/10.3897/phytokeys.128.35842
Figure 2 Quantitative and qualitative characters from pollen grains: A, B optical Microscope Photographs (800×) A polar view: Apocolpium (A), Mesocolpium (M), Equatorial diameter in polar view (EDP), Exine length (EL), Amb, Polarity, Symmetry, Aperture length, Polar Area Index (PAI) = A/EDP B equatorial view: Equatorial diameter (ED), Polar axis (PA), Pollen unit, Aperture (number, position, character), Pollen type, Shape class (PE) = PA/ED C scanning Electron Microscope Photograph (6000x); Exine Ornamentation, Spinule length (SL), Spinule base (SB), Perforation diameter (PD).
Figure 2 from: Xu W-J, Qin W-H, Wang Z-Q, Li Z-L, Fu L-F, Hong X (2019) A new variety of Didymocarpus (Gesneriaceae) from Guangdong, China. PhytoKeys 128: 33-38. https://doi.org/10.3897/phytokeys.128.35446
Figure 2 The distribution areas of Section Heteroboea and their Parent material. The different colours represent the different Parent material: red – danxia landscape; yellow – granite landscape; green – karst limestone landscape; nlack – volcanic landscape).
Figures 13-27 from: Bukhtiyarova LN (2019) The genus Eunotia Ehrenb. (Bacillariophyta) in the Cheremsky Nature Reserve, Ukrainian Polissya, and refined terminology relevant to the raphe system morphology. PhytoKeys 128: 1-31. https://doi.org/10.3897/phytokeys.128.35566
Figures 13-27 - New and rare in Ukraine species of Eunotia Ehrenb. from Ukrainian Polissya and the Lectotypes of two Eunotia species. 13, 13a Eunotia pseudoflexuosa Hust., arrow indicates rimoportula at the middle of pole where raphe slit distal end finishes on the outer valve surface, double arrow – position of terminal fissure distal end on the outer valve surface, between the arrows – hyaline field from inside valve surface where the terminal fissure is located on the outer valve surface 14 Eunotia ruzickae Bílý & Marvan 15, 16 Eunotia implicata Nörpel-Schempp et al. Lectotype: 15 = Eunotia impressa var. angusta Grunow in Van Heurck 1881: pl. 33/fig. 22, designated here 17, 17a Eunotia sp. 2 ( cf. mongolica Kulikovskiy et al.) 18–20 Eunotia sp. 3 (cf. Eunotia paludosa Grunow) 21–23 Eunotia incisa W. Smith ex Gregory. Lectotype: 23 = Eunotia incisa W. Smith ex Gregory 1854: pl. 4/fig. 4, designated here 24 Eunotia sp. 4 (cf. Eunotia intermedia (Krasske ex Hustedt) Nörpel & Lange-Bert.) 25–27 Eunotia sp. 5 (cf. Eunotia meridiana Metzeltin & Lange-Bert.). Figs 13, 17, 18 SEM: 13, 13a inside valve surface 17, 17a, 18 outside valve surface; 19–28 LM. Scale bars: 10 µm (13–17, 19–27); 5 µm (18); 1 µm (13a, 17a).
Figure 4 from: Li R, Wang Z, Wang J, Zhu X, Xu H (2019) Isotrema sanyaense, a new species of Aristolochiaceae from Hainan, China. PhytoKeys 128: 85-96. https://doi.org/10.3897/phytokeys.128.35042
Figure 4 A, BIsotrema sanyaense R.T.Li, X.X.Zhu & Z.W.Wang, sp. nov. A habit B flowers C, DI. jianfenglingense (Han Xu, Y.D.Li & H.Q.Chen) X.X.Zhu, S.Liao & J.S.Ma C habit D flowers E, FI. ledongense (Han Xu, Y.D.Li & H.J.Yang) X.X.Zhu, S.Liao & J.S.Ma E flowering branch F flower (front view).
Figure 3 from: Bukhtiyarova LN (2019) The genus Eunotia Ehrenb. (Bacillariophyta) in the Cheremsky Nature Reserve, Ukrainian Polissya, and refined terminology relevant to the raphe system morphology. PhytoKeys 128: 1-31. https://doi.org/10.3897/phytokeys.128.35566
Figure 3 - Scheme of the mirror-symmetric, mantle-offset, brevisslit raphe system in frustule of the genus Eunotia Ehrenb. A valve view, different parts of valve. TA – transapical axis. Central part – between the arrows, middle part – between upper and double arrows, the beginning of valve pole – double arrow B girdle view, arrow – central raphe pore C, D raphe system without terminal fissures C arrow – a pore outer at distal end of slit, that finishes at the middle of valve pole D arrow – a funnel-like outer at distal end of slit, that finishes at the venral corner of valve pole E, F raphe system with terminal fissures – dotted lines between arrows, arrow – distal end of a slit E double arrow – the end of terminal fissure F double arrow – lacuna at the end of terminal fissure. (Original by L. Bukhtiyarova)
Figure 1 from: Xu W-J, Qin W-H, Wang Z-Q, Li Z-L, Fu L-F, Hong X (2019) A new variety of Didymocarpus (Gesneriaceae) from Guangdong, China. PhytoKeys 128: 33-38. https://doi.org/10.3897/phytokeys.128.35446
Figure 1 Didymocarpusheucherifoliusvar.gamosepalusA habit B habitat, showing Danxia landscape C cyme with flowers D corolla, showing outside glabrous E bracts and bracteoles F calyx, showing base of calyx connate G opened corolla, showing staminodes H pistil I stigma J stamens.
Figure 2 from: Li R, Wang Z, Wang J, Zhu X, Xu H (2019) Isotrema sanyaense, a new species of Aristolochiaceae from Hainan, China. PhytoKeys 128: 85-96. https://doi.org/10.3897/phytokeys.128.35042
Figure 2 Isotrema sanyaense R.T.Li, X.X.Zhu & Z.W.Wang, sp. nov. A habit B leaves (adaxially and abaxially) C inflorescence D flower (lateral view) E opened flower (showing the inside structure) F anthers and gynostemium G fruit H seeds. Scale bars: 1 cm (B, C); 2 cm (D, E, G); 5 mm (F, H).
Figure 1 from: Li R, Wang Z, Wang J, Zhu X, Xu H (2019) Isotrema sanyaense, a new species of Aristolochiaceae from Hainan, China. PhytoKeys 128: 85-96. https://doi.org/10.3897/phytokeys.128.35042
Figure 1 Isotrema sanyaense R.T.Li, X.X.Zhu & Z.W.Wang, sp. nov. A flowering branch B leaf C flower (front view) D flower (lateral view) E opened flower (showing the inside structure) F anthers and gynostemium G fruit H seeds. Scale bars: 6 cm (B); 1 mm (C, D, E); 5 mm (F); 2 cm (G); 3 mm (H).
Figure 3 from: Kenfack D, Nguema DE (2019) A new species of Rhaptopetalum (Lecythidaceae) from south-western Gabon. PhytoKeys 128: 39-46. https://doi.org/10.3897/phytokeys.128.34640
Figure 3 Type locations of Rhaptopetalum rabiense and the closely related species R. belingense in Gabon.
Figure 2 from: Kenfack D, Nguema DE (2019) A new species of Rhaptopetalum (Lecythidaceae) from south-western Gabon. PhytoKeys 128: 39-46. https://doi.org/10.3897/phytokeys.128.34640
Figure 2 Rhaptopetalum rabienseA flowering branch B lateral view of the flower C flower view from above showing the poricidal anthers and the gynoecium D fruiting branch. Photographs by Diosdado Nguema.
Figure 1 from: Kenfack D, Nguema DE (2019) A new species of Rhaptopetalum (Lecythidaceae) from south-western Gabon. PhytoKeys 128: 39-46. https://doi.org/10.3897/phytokeys.128.34640
Figure 1 Rhaptopetalum rabienseA flowering twig B close-up of the lower surface showing the indumentum and the punctate lamina C detail of inflorescence and stem showing lenticels D flower bud E opened flower F flower with pseudocorolla and stamens removed showing superior ovary G longitudinal section of F showing pendulous ovules H fruiting branch.
Figures 28-35 from: Bukhtiyarova LN (2019) The genus Eunotia Ehrenb. (Bacillariophyta) in the Cheremsky Nature Reserve, Ukrainian Polissya, and refined terminology relevant to the raphe system morphology. PhytoKeys 128: 1-31. https://doi.org/10.3897/phytokeys.128.35566
Figures 28-35 - Species of Eunotia Ehrenb. from the Cheremsky Nature Reserve. 28, 28a, 29 Eunotia dorofeyukiae Lange-Bert. & Kulikovskiy 28a arrow indicates pore outer on the raphe slit distal end 29 arrow indicates rimoportula at the venral corner of pole where raphe slit distal end finishes on the outer valve surface 30, 30a Eunotia neocompacta S. Mayama 30a arrow indicates rimoportula at the venral corner of pole, absence of a hyaline field indicates absence of terminal fissure 31 Eunotia praerupta Ehrenb. 32 Eunotia sp. 6. 33 Eunotia sp. 7. 34, 35 Eunotia tetraodon Ehrenb. Figs 28–31 SEM: 28, 28a outside valve surface; 29–31 inside valve surface; 32–35 LM. Scale bars: 5 µm (28, 29, 30); 2 µm (28a); 1 µm (30a); 10 µm (31–34).
Figure 2 from: Nobis M, Gudkova PD, Pendry CA (2019) Synopsis of the tribe Stipeae (Poaceae) in Nepal. PhytoKeys 128: 97-119. https://doi.org/10.3897/phytokeys.128.34637
Figure 2 Cluster analysis (UPGMA method of classification and Gower's general similarity coefficient) performed on 16 qualitative morphological characters for all of the Nepalese members from the tribe Stipeae.
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