| _version_ | 1866901437672325120 |
|---|---|
| author | Pignal, Marc Phillipson, Peter B. Bardot-Vaucoulon, Martine |
| author_facet | Pignal, Marc Phillipson, Peter B. Bardot-Vaucoulon, Martine |
| contents | <p><b>19</b>. <b>2</b> <b><i>Chlorophytum meridionale</i> subsp</b>. <i>ihosyense</i> Bard.-Vauc. & M.Pignal subsp. nov.</p><p>urn:lsid:ipni.org:names:77324177-1</p><p>Figs 31, 33, Table 5</p><p><b>Diagnosis</b></p><p>A typo differt foliis lineariis angustatioribus (0.4–0.5 cm vs 0.8–2.5 cm), nervis minus numerosis (15–19 vs 15–27), inflorescentiis simplicibus (vs ramosas), ovulis per loculum pluribus (8–9 ad 14–16 vs 8–10).</p><p><b>Etymology</b></p><p>The specific epithet refers to the type locality, which is located on the road from Ihosy to Betroka.</p><p><b>Type material</b></p><p><b>Type</b></p><p>MADAGASCAR – <b>Androy [Toliara Prov</b>.<b>]</b> • PK 65-66, route Ihosy à Betroka; [22°50′ S, 46°08′ E]; Feb. 1963; fl; <i>J. Bosser 17509</i>; rocher temporairement humide; holotype: P [P06169913]!.</p><p><b>Paratypes</b> MADAGASCAR – <b>Androy [Toliara Prov</b>.<b>]</b> • Plateau de l’Horombe, au Sud de Ihosy; [22°27′ S, 45°50′ E]; ca 1000 m; Mar. 1934; fl, fr; <i>H. Humbert 14427</i>; P [P06169916]!. – <b>Anosy [Toliara Prov</b>.<b>]</b> • Androtra, district de Betroka; [23°16′12″ S, 46°06′36″ E]; 12 Feb. 1961; fl; <i>J. Peltier & M. Peltier 2771</i>; P [P06169872]!.</p><p><b>Description</b></p><p><i>Plant herbaceous</i>, 37–60 cm tall; <i>roots</i> fasciculate, 0.5(–3) mm in diam., with 4–5(11) linear, narrow, conduplicate or convolute leaves; blade, 18–44 × 0.4–0.5 cm, smooth on the underside, with 15–19 veins; <i>inflorescence</i> 1 per plant, unbranched, 36 to 68 cm tall, peduncle 29–49 cm long, with 1 or 2 triangular bracts 1.2–5 × 0.2–0.3 cm, narrow, acicular, with smooth margins and surface, with 5–12 veins, <i>rachis</i> 5–10 cm long, 1–2 flowers per node, floral bracts triangular and acicular, 9–9.5 × 1.5–2 mm with 3–6 veins, longer than the pedicel, which is 4–5 mm long, inframedial articulation; <i>flower</i> with white perianth, 10.5–11 mm long; outer tepals 1.5–2 mm wide, inner tepals 2–3 mm wide, with 3 closely spaced veins in the centre; <i>stamens</i> shorter than the perianth, in 2 groups, the first with fine, long filaments, 5–5.5 × 0.1–0.15 mm and anthers 5–5.5 × 1.1–1.3 mm, the second with filaments 4–4.5 × 0.15–0.2 mm and anthers 4.5–4.8 × 1.1–1.3 mm, with a short and rounded connective heel; <i>gynoecium</i>: ovary 1–1.5 × 0.8–1 mm, with 8–9 or 14–16 ovules per locule (see Morphological remark), style 10–11 mm long; <i>capsule</i> 11.5 × 7 mm, with thickened suture margins and transverse veins; <i>seed</i> flattened, shiny, black, orbicular, 2.5–3 mm in diam., with a prominent radicle.</p><p><b>Phenology</b></p><p>This subspecies flowers in February and begins to bear fruit in March.</p><p><b>Distribution and ecology</b></p><p>The species is found on the eastern edge of the Horombe Plateau, at an altitude of 1000 m and above, on metamorphic rocks (gneiss) in secondary grasslands subject to annual burning or in vegetation on temporarily moist rocks.</p><p><b>Morphological remark</b></p><p>The type collection (<i>Bosser 17509</i>) has twice as many ovules per locule as the collections of the type subspecies and even the paratypes of the present subspecies. However, the latter share with the type linear leaves with narrower laminae, fewer veins, simple inflorescences, and similar flowers. This has led us to include all these collections in the same taxon.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_18762546 |
| institution | Zenodo |
| language | |
| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Chlorophytum meridionale subsp. ihosyense Bard. - Vauc. & M. Pignal 2026, subsp. nov. Pignal, Marc Phillipson, Peter B. Bardot-Vaucoulon, Martine Biodiversity Taxonomy Plantae Tracheophyta Liliopsida Asparagales Asparagaceae Chlorophytum Chlorophytum meridionale Chlorophytum meridionale subsp. ihosyense bard.-Vauc. & m.pignal <p><b>19</b>. <b>2</b> <b><i>Chlorophytum meridionale</i> subsp</b>. <i>ihosyense</i> Bard.-Vauc. & M.Pignal subsp. nov.</p><p>urn:lsid:ipni.org:names:77324177-1</p><p>Figs 31, 33, Table 5</p><p><b>Diagnosis</b></p><p>A typo differt foliis lineariis angustatioribus (0.4–0.5 cm vs 0.8–2.5 cm), nervis minus numerosis (15–19 vs 15–27), inflorescentiis simplicibus (vs ramosas), ovulis per loculum pluribus (8–9 ad 14–16 vs 8–10).</p><p><b>Etymology</b></p><p>The specific epithet refers to the type locality, which is located on the road from Ihosy to Betroka.</p><p><b>Type material</b></p><p><b>Type</b></p><p>MADAGASCAR – <b>Androy [Toliara Prov</b>.<b>]</b> • PK 65-66, route Ihosy à Betroka; [22°50′ S, 46°08′ E]; Feb. 1963; fl; <i>J. Bosser 17509</i>; rocher temporairement humide; holotype: P [P06169913]!.</p><p><b>Paratypes</b> MADAGASCAR – <b>Androy [Toliara Prov</b>.<b>]</b> • Plateau de l’Horombe, au Sud de Ihosy; [22°27′ S, 45°50′ E]; ca 1000 m; Mar. 1934; fl, fr; <i>H. Humbert 14427</i>; P [P06169916]!. – <b>Anosy [Toliara Prov</b>.<b>]</b> • Androtra, district de Betroka; [23°16′12″ S, 46°06′36″ E]; 12 Feb. 1961; fl; <i>J. Peltier & M. Peltier 2771</i>; P [P06169872]!.</p><p><b>Description</b></p><p><i>Plant herbaceous</i>, 37–60 cm tall; <i>roots</i> fasciculate, 0.5(–3) mm in diam., with 4–5(11) linear, narrow, conduplicate or convolute leaves; blade, 18–44 × 0.4–0.5 cm, smooth on the underside, with 15–19 veins; <i>inflorescence</i> 1 per plant, unbranched, 36 to 68 cm tall, peduncle 29–49 cm long, with 1 or 2 triangular bracts 1.2–5 × 0.2–0.3 cm, narrow, acicular, with smooth margins and surface, with 5–12 veins, <i>rachis</i> 5–10 cm long, 1–2 flowers per node, floral bracts triangular and acicular, 9–9.5 × 1.5–2 mm with 3–6 veins, longer than the pedicel, which is 4–5 mm long, inframedial articulation; <i>flower</i> with white perianth, 10.5–11 mm long; outer tepals 1.5–2 mm wide, inner tepals 2–3 mm wide, with 3 closely spaced veins in the centre; <i>stamens</i> shorter than the perianth, in 2 groups, the first with fine, long filaments, 5–5.5 × 0.1–0.15 mm and anthers 5–5.5 × 1.1–1.3 mm, the second with filaments 4–4.5 × 0.15–0.2 mm and anthers 4.5–4.8 × 1.1–1.3 mm, with a short and rounded connective heel; <i>gynoecium</i>: ovary 1–1.5 × 0.8–1 mm, with 8–9 or 14–16 ovules per locule (see Morphological remark), style 10–11 mm long; <i>capsule</i> 11.5 × 7 mm, with thickened suture margins and transverse veins; <i>seed</i> flattened, shiny, black, orbicular, 2.5–3 mm in diam., with a prominent radicle.</p><p><b>Phenology</b></p><p>This subspecies flowers in February and begins to bear fruit in March.</p><p><b>Distribution and ecology</b></p><p>The species is found on the eastern edge of the Horombe Plateau, at an altitude of 1000 m and above, on metamorphic rocks (gneiss) in secondary grasslands subject to annual burning or in vegetation on temporarily moist rocks.</p><p><b>Morphological remark</b></p><p>The type collection (<i>Bosser 17509</i>) has twice as many ovules per locule as the collections of the type subspecies and even the paratypes of the present subspecies. However, the latter share with the type linear leaves with narrower laminae, fewer veins, simple inflorescences, and similar flowers. This has led us to include all these collections in the same taxon.</p> |
| title | Chlorophytum meridionale subsp. ihosyense Bard. - Vauc. & M. Pignal 2026, subsp. nov. |
| topic | Biodiversity Taxonomy Plantae Tracheophyta Liliopsida Asparagales Asparagaceae Chlorophytum Chlorophytum meridionale Chlorophytum meridionale subsp. ihosyense bard.-Vauc. & m.pignal |
| url | https://doi.org/10.5281/zenodo.18762546 |