Lasianthus nhatrangensis V.S.Dang & Naiki (2021: 16)

52. Lasianthus nhatrangensis V.S.Dang & Naiki (2021: 16) — Fig. 80 View FIGURE 80 (plate), Fig. 78 View FIGURE 78 (map)

Type: — VIETNAM. Khanh Hoa Province, Hon Ba Nature Reserve, 400 m elev., 13 July 2014, Tagane S., Kanemitsu H., Dang V.S., Tran H. with Hanh N., Loi X.N., Thach N.D., Dinh N., Hieu P.N.H. V 1563 ( holotype VNM! [ VNM00042923 View Materials ]; isotypes FU!, VNM! [ VNM00042924 View Materials , VNM00042925 View Materials ], the herbarium of Iriomote Station (Japan)) .

Specimens examined: — VIETNAM. Central: Khanh Hoa Province, Hon Ba Nature Reserve, 400 m elev., 12°06’31.02’’N, 108°59’14.01’’E, in evergreen forests, 13 July 2014, Tagane S., Kanemitsu H., Dang V.S., Tran H. with Hanh N., Loi X.N., Thach N.D., Dinh N., Hieu P.N.H. V 1563 ( FU, VNM, the herbarium of Iriomote Station ( Japan)) GoogleMaps .

Distribution: —Endemic to Vietnam (known only from the Hon Ba Nature Reserve, Khanh Hoa Province).

Habitat & Ecology: —Low montane forest under the shade of the canopy at ca. 400 m elev.

Phenology: —Flowering and fruiting from March to July.

Vernacular name: —Xú hưƠng nha trang.

Notes: — Lasianthus nhatrangensis is similar to L. bokoensis Naiki (2015: 156) which was recently discovered from Bokor National Park, Cambodia, in the shade of the leaves and fruits, number of pyrenes, but differs in having shorter petioles ( 3–5 mm long vs. 6–9 mm long), smaller stipules ( 1.5–2 mm long vs. 2–3 mm long) and calyx ( 1–1.5 mm long vs. 1.7–2 mm long for tubes and 2–3 mm long vs. 3–4.5 mm long for lobes).