Chlorophytum madagascariense var. pervillei Bard. - Vauc. & M. Pignal 2026, nom. nov.

18. 3 Chlorophytum madagascariense var. pervillei Bard.-Vauc. & M.Pignal nom. nov. urn:lsid:ipni.org:names:77324181-1 Fig. 30, Table 4 Basionym: Chlorophytum gramineum var. typicum H.Perrier, Notulae Systematicae. Herbier du Muséum de Paris. Phanérogramie (Paris) 5 (1): 57 (Perrier de la Bâthie 1935), nom. illeg. Chlorophytum rutenbergianum Vatke (Vatke 1887: 138) – Type: MADAGASCAR – DIANA Region [Antsiranana Prov.] • Nossibe, Domaine du Sambirano; 12 Mar. 1878; fl, fr; C. Rutenberg s.n.; holotype: BRNU [BRNU347452] image!. Etymology This new name is dedicated to Auguste Pervillé (1840–1868?), gardener and botanist at the Muséum national d’Histoire naturelle in Paris, later a planter, who worked in Nossi-Bé and north-western Madagascar in the 1840s, as well as in the Seychelles (Dorr 1997). Type material Type MADAGASCAR – Boeny [Mahajanga Prov.] • Ambongo; [16°20′ S, 46°20′ E]; 13 Feb. 1841; fl; A. Pervillé 579; sables humides; lectotype: K [K000432394] image!, here designated; isolectotypes: P [P01046118, P01046119, P01046120]!. Paratype MADAGASCAR – Boeny [Mahajanga Prov.] • NW Madagascar, Ambongo; [16°20′ S, 46°20′ E]; 13 Feb. 1841; fl, fr; A. Pervillé 580; K [K000432393] image!, L [L1439979, L1439981] image!, P [P 02071704, P 02071705]!. Description Plant herbaceous, with a subterranean part having thickened roots, 1–1.5(–2) mm diam.; leaves 5–9, narrow, 23–47 × 0.4–0.8 cm, with a base tapering into a pseudo-petiole representing between 1/4 and 1/3 of the blade length, veins 15–28, visible; inflorescence rigid, 44–70 cm tall, peduncle 32–55(–65) cm long, branched from the base, the rachises 6–15(–17) cm long, with a large bract at the node, 18–31 × 3 mm, flowers, 1–3 per node, floral bract triangular and pointed, 4.5–5 × 2 mm, longer than the pedicel, with a scabrous margin, pedicel 3.5–4 mm long, with an inframedial articulation; flowers 8–10 mm long, tepals white, veins 3, spaced; anthers 4 × 1.2 mm, the appendix of the connective short, triangular; gynoecium: ovary 1 × 0.8 mm, ovules 5 or 6 per locule, style 10 mm long; capsule generally as long as wide, 7–8 × 7.5 mm; seeds black, 2–2.5 × 3 mm. Phenology Flowering is known to occur from January to February, with fruiting beginning in February. Distribution and ecology The taxon occurs in western Madagascar, both on the island of Nosy Be, probably on volcanic substrates, and in Ambongo, on sand. Illustrations Perrier de la Bâthie 1937 [1938]: fig. VIII 8–10. Nomenclatural remark Without having seen the type of C. rutenbergianum Vatke (Rutenberg s.n.), H. Perrier de la Bâthie considered it as a synonym of C. gramineum var. madagascariense. In his work (Perrier de la Bâthie 1935), he mentioned encountering the plant on Nosy Be without collecting it. He described it as the “forme habituelle des rocailles et des lieux découverts” [typical form of rocky and open places]. However, upon examining the photo of the type deposited at BRNU, it seems to correspond more closely to the variety pervillei due to its general ʻgraminoid' habit, its leaves with a pronounced pseudo-petiole and narrow blade, whereas the type variety has shorter and wider leaves with a much shorter pseudo-petiole.