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FIGURE 4 in Two new diploid species of Isoetes (Isoetaceae: Lycopodiopsida) from Southeastern China based on morphological and molecular evidence

FIGURE 4. Chloroplast phylogenetic tree of Isoetes species. ML bootstrap values are presented under branches. Isoetes malinverniana and Isoetes nuttallii were set as the outgroups.

FIGURE 5 in On the typification of three Isoetes names (Isoetaceae, Lycopodiopsida) described from France

FIGURE 5. Lectotype (the seven plants on the lower half of the sheet) of Isoetes tenuissima (P barcode P01190869).

FIGURE 4 in On the typification of three Isoetes names (Isoetaceae, Lycopodiopsida) described from France

FIGURE 4. SEM images of megaspores from the lectotype of Isoetes echinospora: A. distal view; B. proximal view; C. equatorial view. Scale bar = 100 µm.

FIGURE 6 in On the typification of three Isoetes names (Isoetaceae, Lycopodiopsida) described from France

FIGURE 6. SEM images of spores from the lectotype of Isoetes tenuissima (spores were removed from the second individual from the right in the lower part of the sheet P barcode P01190869): A. Megaspore proximal view; B. Megaspore distal view; C. Megaspore equatorial view; D. Microspore equatorial view. Megaspore scale bar = 100 µm. Microspore scale bar = 10 µm.

FIGURE 3 in On the typification of three Isoetes names (Isoetaceae, Lycopodiopsida) described from France

FIGURE 3. Lectotype (the individual bottom left, dissected as seven pieces and attached to a single label) of Isoetes echinospora (P barcode P01217445).

FIGURE 5 in Two new diploid species of Isoetes (Isoetaceae: Lycopodiopsida) from Southeastern China based on morphological and molecular evidence

FIGURE 5. Phylogenetic tree of the second intron of LEAFY homolog. The circles stand for bootstraps ≥ 70. Isoetes hypsophila was set as the outgroup.

FIGURE 2. Isoetes yuhangensis X. Liu & Y.C. Chen. A in Two new diploid species of Isoetes (Isoetaceae: Lycopodiopsida) from Southeastern China based on morphological and molecular evidence

FIGURE 2. Isoetes yuhangensis X. Liu & Y.C. Chen. A. Proximal view of megaspore. B. Distal view of megaspore. C. Equatorial view of megaspore of. D. Proximal view of microspore of. E. Distal view of microspore. F. Mitotic chromosomes of root tip cells. G. Megasporangium. H. Microsporangium. I. Habitat. Scale bars: A–C = 100 μm; D–E = 5 μm; F = 20 μm; G–H = 2 mm.

FIGURE 1. Isoetes changleensis Y.C. Chen & X. Liu. A in Two new diploid species of Isoetes (Isoetaceae: Lycopodiopsida) from Southeastern China based on morphological and molecular evidence

FIGURE 1. Isoetes changleensis Y.C. Chen & X. Liu. A. Proximal view of megaspore. B. Distal view of megaspore. C. Equatorial view of megaspore. D. Proximal view of microspore. E. Distal view of microspore. F. The mitotic chromosomes of root tip cells. G. Megasporangium. H. Microsporangium. I. Habitat. Scale bars: A–C = 100 μm; D–E = 5 μm; F = 20 μm; G–H = 2 mm.

FIGURE S1 in Two new diploid species of Isoetes (Isoetaceae: Lycopodiopsida) from Southeastern China based on morphological and molecular evidence

FIGURE S1. Spore morphology of Isoetes in China. (A) I. changleensis (B) I. yuhangensis (C) I. taiwanensis (cited from Liu et al. 2008). (D) I. sinensis (cited from Liu et al. 2008). (E) I. baodongii (cite from Lu et al. 2021). (F) I. longpingii (cite from Shu et al. 2022). (G) I. xiangfei (cite from Shu et al. 2022). (H) I. orientalis (cited from Liu et al. 2008). (I) I. yunguiensis (cited from Liu et al. 2008). (J) I. hypsophila (cited from Li et al. 2019). (K) I. shangrilaensis (cited from Li et al. 2019). Scale bars: A1–A3 = 100 μm; A4–A5 = 5 μm; B1–B3 = 100 μm; B4–B5 = 5 μm; C1–C3 = 150 μm; C4 = 12 μm; C5 = 8.6 μm; D1–D3 = 150 μm; D4–D5 = 10 μm; E1–E2 = 100 μm; E3–E4 = 10 μm; F1–F2 = 100 μm; F3–F4 = 10 μm; G1–G2 = 100 μm; G3–G4 = 10 μm; H1–H2 = 75 μm; H3–H4 = 4 μm; I1,I3 = 176 μm; I2 = 136 μm; I4–I5 = 10 μm; J1–J3 = 200 μm; J4–J5 = 10 μm; K1–K3 = 200 μm; K4–K5 = 10 μm.

TABLE 1 in Two new diploid species of Isoetes (Isoetaceae: Lycopodiopsida) from Southeastern China based on morphological and molecular evidence

<p><b>TABLE 1.</b> Comparative accounts on the morphology of megaspores and microspores of <i>Isoetes</i> species in China.</p><table><tbody><tr><th></th><th><i>I. changleensis</i></th><th><i>I. yuhangensis</i></th><th><i>I. baodongii</i></th><th><i>I. sinensis</i></th><th><i>I. longpingii</i></th><th><i>I. xiangfei</i></th><th><i>I. orientalis</i></th><th><i>I. taiwanensis</i></th><th><i>I. yunguiensis</i></th><th><i>I. hypsophila</i></th><th><i>I. shangrilaensis</i></th></tr></tbody><tbody><tr><th>Megaspore diameter (μm)</th><td>246–314</td><td>270–324</td><td>390–510</td><td>317–424</td><td>310–410</td><td>390–450</td><td>350–460</td><td>280–340</td><td>340–430</td><td>361–510</td><td>207–273</td></tr><tr><th>Mean megaspore size (μm)</th><td>284</td><td>302</td><td>450</td><td>378</td><td>350</td><td>430</td><td>420</td><td>312</td><td>390</td><td>450</td><td>245</td></tr><tr><th>Ornamentation of megaspores</th></tr><tr><th>proximal surface</th><td>tuberculate</td><td>rugulate</td><td>echinate-cristate</td><td>echinate</td><td>tuberculate-cristate</td><td>cristate-reticulate</td><td>cristate-reticulate</td><td>tuberculate</td><td>cristate-reticulate</td><td>levigate</td><td>levigate</td></tr><tr><th>Equatorial surface (girdle)</th><td>rugulate</td><td>smooth</td><td>/</td><td>loss</td><td>/</td><td>/</td><td>/</td><td>smooth</td><td>loss</td><td>loss</td><td>smooth</td></tr><tr><th>distal surface</th><td>rugulate</td><td>rugulate</td><td>echinate-cristate</td><td>echinate-cristate</td><td>tuberculate-cristate</td><td>cristate-reticulate</td><td>cristate-reticulate</td><td>tuberculate-cristate</td><td>cristate-reticulate</td><td>levigate</td><td>tuberculate-rugulate</td></tr><tr><th>Range microspore size (μm)</th><td>14–20</td><td>16–26</td><td>22–27</td><td>20–29</td><td>27–30</td><td>26–28</td><td>20–38</td><td>20–28</td><td>20–25</td><td>19–25</td><td>11–24</td></tr><tr><th>Mean microspore size (μm)</th><td>18</td><td>21</td><td>25</td><td>25</td><td>29</td><td>27</td><td>34</td><td>24</td><td>22</td><td>22</td><td>19</td></tr><tr><th>Ornamentation of microspores</th><td>blunt-tipped echinate</td><td>sharp-tipped echinate</td><td>echinate</td><td>echinate</td><td>echinate</td><td>echinate</td><td>echinate-tuberculate</td><td>echinate</td><td>levigate-granulate</td><td>rugulate</td><td>echinate-cristate</td></tr><tr><th>Chromosome number</th><td>22</td><td>22</td><td>22</td><td>44</td><td>44</td><td>44</td><td>66</td><td>22</td><td>22</td><td>22</td><td>22</td></tr><tr><th>Data Source</th><td>this study</td><td>this study</td><td>Lu <i>et al.</i> 2021</td><td>Liu <i>et al.</i> 2008</td><td>Shu <i>et al.</i> 2022</td><td>Shu <i>et al.</i> 2022</td><td>Liu <i>et al.</i> 2008</td><td>Liu <i>et al.</i> 2008</td><td>Liu <i>et al.</i> 2008</td><td>Li <i>et al.</i> 2019</td><td>Li <i>et al.</i> 2019 Shu <i>et al.</i> 2022</td></tr></tbody></table><p>Note:/ represents no data.</p>

FIGURE 2 in Description, distribution and ecology of endemic Tasmanian quillwort, Isoetes jarmaniae, sp. nov. (Isoetaceae; Lycopodiopsida)

FIGURE 2. Isoetes jarmaniae habitat; 2A: peat-bound karstic wetland in a landscape dominated by buttongrass (Gymnoshoenus sphaerocephalus) moorland, Giblin River valley (1979); 2B: peat-bound karstic wetland, surrounded by tall wet scrub, with outcropping dolomite, Maxwell River valley (1984) (Photos: J. Jarman)

FIGURE 4 in Description, distribution and ecology of endemic Tasmanian quillwort, Isoetes jarmaniae, sp. nov. (Isoetaceae; Lycopodiopsida)

FIGURE 4. Cross-section of Isoetes jarmaniae leaves at mid-point, showing narrow internal partitions, small central vascular bundle and large air channels; 4A: terete leaf section (de Salas 2005, Giblin River valley, March 2018, DFB); 4B: flattened (adaxially folded) leaf section (de Salas 1903, December 2017, DFB). (Photo interpretation: D. F. Brunton)

FIGURE 6 in Description, distribution and ecology of endemic Tasmanian quillwort, Isoetes jarmaniae, sp. nov. (Isoetaceae; Lycopodiopsida)

FIGURE 6. Isoetes jarmaniae spores; 3A: megaspore proximal view, with congested ornamentation and slightly triangular shape; 3B: megaspore lateral view, rugulate-cristate ornamentation and papillae in patches on distal side of alate (winged) equatorial ridge; 3C: megaspore distal view, with congested ornamentation pattern of anastomosing, rugulate-cristate, thick-walled muri and with fewer standalone columnar muri; 3D: megaspore distal view, with alternative congested pattern of tall, predominantly columnar muri and a relatively wide (5−9% width of megaspore body), thin, alate equatorial band; note three microspores to left; 3E: plump, blunt-ended microspore with low, obscure dorsal ridge; 3F: detail of densely fine papillate microspore ornamentation. Megaspore scale bar (3A–D) = 100 µm. (3A: Garrett s.n. Giblin River valley, February 1994 (SEM image: D. M. Britton, 1994); 3B & 3C: Jarman s.n., near Lancelot Hill, Maxwell River valley, April 1985 (SEM images: P.C. Sokoloff, June 2021); 3D & 3E: de Salas 2005, Pass Hill, Giblin River valley, March 2018 (SEM images: P.C. Sokoloff, June 2021); 3F: Jarman s.n., near Lancelot Hill, Maxwell River valley, April 1985 (SEM images: P.C. Sokoloff, June 2021))

FIGURE 5 in Description, distribution and ecology of endemic Tasmanian quillwort, Isoetes jarmaniae, sp. nov. (Isoetaceae; Lycopodiopsida)

FIGURE 5. Inner leaf base of Isoetes jarmaniae showing complete fenestra (no velum coverage) of the sporangium and long, narrow ligule (Jarman s.n., near Lancelot Hill, Maxwell River valley, April 1985, DFB). Scale bar = 1 mm. (Photo: D. F. Brunton)

FIGURE 2 in On the typification of three Isoetes names (Isoetaceae, Lycopodiopsida) described from France

FIGURE 2. Isolectotype of Isoetes delalandei in NTM (accession number MHNN.B.10092.6).

FIGURE 6 in Two new diploid species of Isoetes (Isoetaceae: Lycopodiopsida) from Southeastern China based on morphological and molecular evidence

FIGURE 6. Distribution of Isoetes changleensis (blue) and I. yuhangensis (red) in China.

FIGURE 3 in Two new diploid species of Isoetes (Isoetaceae: Lycopodiopsida) from Southeastern China based on morphological and molecular evidence

FIGURE 3. Chloroplast of Isoetes yuhangensis and I. changleensis.

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FIGURE 1 in Spinulum lioui, a new species referred as to Lycopodium neopungens (Lycopodiopsida: Lycopodiaceae) in China

FIGURE 1. Holotype of Spinulum lioui (HIB-0099100).—A. Habit.—B. Trophophylls.—C. Strobilus.

TABLE 2 in Two new diploid species of Isoetes (Isoetaceae: Lycopodiopsida) from Southeastern China based on morphological and molecular evidence

<p><b>TABLE 2.</b> Summary of complete chloroplast genomes for <i>Isoetes changleensis</i> and I. yuhangensis.</p><table><tbody><tr><th>Genome features</th><th>I. changleensis</th><th><i>I. yuhangensis</i></th></tr></tbody><tbody><tr><th>Genome size (bp)</th><td>145,494</td><td>145,501</td></tr><tr><th>GC content (%)</th><td>38</td><td>38</td></tr><tr><th>LSC size (bp)</th><td>91,859</td><td>91,839</td></tr><tr><th>SSC size (bp)</th><td>27,221</td><td>27,225</td></tr><tr><th>IR size (bp)</th><td>26,414</td><td>26,414</td></tr><tr><th>Number of genes</th><td>125</td><td>125</td></tr><tr><th>Protein coding genes</th><td>81</td><td>81</td></tr><tr><th>tRNA genes</th><td>36</td><td>36</td></tr><tr><th>rRNA genes</th><td>8</td><td>8</td></tr></tbody></table>

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FIGURE 1 in On the typification of three Isoetes names (Isoetaceae, Lycopodiopsida) described from France

FIGURE 1. Lectotype of Isoetes delalandei (ANG, accession number MBAng.2023.0.12369, plants on the left top of the sheet, on a black paper background); the other plants on the sheet are labelled as a separate specimen (accession number MBAng.2023.0.12370) and are isolectotypes.