Lepidocupania Buerki, Callm., Munzinger & Lowry 2020, gen. nov

Main Authors: Buerki, Sven, Munzinger, Jérôme, Lowry Ii, Porter P., Callmander, Martin W.
Format: info publication-taxonomictreatment Journal
Terbitan: , 2020
Subjects:
Online Access: https://zenodo.org/record/6314545
Daftar Isi:
  • Lepidocupania Buerki, Callm., Munzinger & Lowry, gen. nov. (Fig. 3A–C). Type: Lepidocupania lepidota (Radlk.) Buerki, Callm., Munzinger & Lowry (≡ Arytera lepidota Radlk.). = Cupaniopsis sect. Mizopetalum Radlk. in Sitzungsber. Math.-Phys. Cl. Königl. Bayer. Akad. Wiss. München 9: 588. 1879. Type: Cupaniopsis fruticosa Radlk. (≡ Lepidocupania fruticosa (Radlk.) Buerki, Callm., Munzinger & Lowry) (lectotype designated by ADEMA, 1991: 60). = Arytera sect. Azarytera Radlk. in Sitzungsber. Math.- Phys. Cl. Königl. Bayer. Akad. Wiss. München 9: 554. 1879. Type: Arytera arcuata Radlk. (≡ Lepidocupania arcuata (Radlk.) Buerki, Callm., Munzinger & Lowry) (lectotype designated by TURNER, 1995: 151). Trees or shrubs. Indument of short, straight, patent or appressed trichomes; glandular scales present on vegetative parts, inflorescence axes, pedicels, abaxial surface of calyx, pistil, and fruits; buds “varnished”. Leaves alternate, 1– 12-jugate; leaflets opposite to alternate, subsessile to petiolulate, margin entire to coarsely dentate. Inflorescences axillary or pseudo-terminal. Flowers zygomorphic or actinomorphic (in L. arcuata, L. brackenridgei, L. gracilipes, and L. lepidota), functionally unisexual; sepals (4 –)5(– 6), free and imbricate or united (in L. arcuata, L. brackenridgei, L. gracilipes, and L. lepidota) to form a dentate calyx cup; petals 5 (4 in L. glomeriflora), with 2 distinct scales; disc lobed or not (in L. arcuata, L. brackenridgei, L. gracilipes, and L. lepidota), rim glabrous to pilose; stamens (6–)8–9, anthers basifixed; ovary 2–3-locular. Fruit a capsule, with 2–3 well developed lobes, rarely 1 (in L. concolor, L. guillauminii, and L. samoensis), dehiscence loculicidal, glabrous to puberulous and rugose to verrucose outside, glabrous to pilose inside; seed ellipsoid or ovoid to globose, sarcotesta covering half to all of the seed, flesh-membranaceous. Distribution. – Lepidocupania comprises 21 species occurring in the Caroline Islands, Fiji, New Caledonia, Samoa, the Solomon Islands, and Vanuatu (Fig. 4). Notes. – Lepidocupania shares the presence of lepidote scales on its vegetative and reproductive organs with Lepiderema. However, Lepidocupania can easily be distinguished from Lepiderema by the presence (vs. absence) of petal and ovary scales, and it differs from Cupaniopsis by the presence (vs. absence) of glandular scales on its vegetative and fertile organs.
  • Published as part of Buerki, Sven, Munzinger, Jérôme, Lowry Ii, Porter P. & Callmander, Martin W., 2020, Two new genera of Sapindaceae (Cupanieae) from the southern Pacific: Lepidocupania and Neoarytera, pp. 269-284 in Candollea 75 (2) on pages 273-274, DOI: 10.15553/c2020v752a9, http://zenodo.org/record/5724901