Bioacoustics of Aspidistra ovatianthera

Distribution and ecology :—At present, Aspidistra ovatianthera is just known from Longzhou county and Daxin county in southwestern Guangxi , China . It grows under broad-leaved evergreen forests, in shaded rocky limestone slopes at elevation range of 170–360 m , not commonly. Similar species:— Aspidistra ovatianthera is similar to A. typica with the purplish red and urceolate perianth, but differs by its leaf blade oblong to oblong-lanceolate (vs. ovate-lanceolate to ovate), 25–36 × 5–8.5 cm (vs. 18–32 × 7–12), base cuneate (vs. rounded), pistil umbrella-like shaped (vs. peltate), stigma deep 6-lobed at margin (vs. slightly 6-lobed), lobes large revolute and bent downwards touching the base of the perigone (vs. lobes small and flat). The new species also close to A. revoluta H. Zhou, S.R.Yi & Q. Gao in Zhou et al. (2016: 280) with the pistil shape with large revolute stigma lobes that bent downwards and touch the base of the perigone, but can be easily distinguished by the petiole 25–46 cm long (vs. 12–26), leaf blade oblong to oblong-lanceolate (vs. sublinear), 25–36 × 5–8.5 cm (vs. 64–86 ×1.2–2.8), perianth urceolate (vs. widely campanulate to nearly bowl shaped). Additional specimens examined ( paratype ) :— CHINA . Guangxi Zhuang Autonomous Region : Longzhou county , Zhubu Town , limestone mountains, alt. 230 m , 27 April 2009 , Yu-Song Huang & Bin-Mou Wang H09355 ( IBK ); Daxin county , Encheng National Natural Reserve , 21 April 2022 , Chun-Rui Lin 1495 ( IBK ); Guilin City , Botany Garden of Guilin , taken to cultivation from the type locality, 12 April 2022 , Chun-Rui Lin 1475 ( IBK ) . Pollen morphology:— The pollen grains are subspherical, inaperturate, pollen size is (23.06–) 30.90 (–38.82) × (21.65–) 28.45 (–37.65) μm ( Fig. 9C ). Pollen with gemmate exine, the spores are nearly round, different sizes and smooth in surface ( Fig. 9D ).