Elaeocarpus hedyosmus subsp. hedyosmus

Silva, Nilanka, Dasanayaka, Shamila, Yakandawala, Deepthi & Yakandawala, Kapila, 2025, Taxonomic resolution of the Elaeocarpus hedyosmus Zmarzty (Elaeocarpaceae) species complex in Sri Lanka using an integrative approach, Phytotaxa 706 (2), pp. 101-128 : 109-112

Elaeocarpus hedyosmus subsp. hedyosmus ( Figs. 5–7 )

Leaves coriaceous, slightly obovate, apex slightly acute, domatia green, prominent on abaxial surface, distributed only along the lower quarter of the mid rib. Flower bud ovoid with obtuse to acute apex. Petals broadly obovate, with 29–32 apical divisions. Seed spherical, stone with blunt projections.

Specimens examined:— SRI LANKA. Central Province, Kandy District., Hunasgiriya, 1000 m a.s.l., (fl. & fr.), 6 June 1971, Kostermans 24418 (holotype K ( K000675990 !) isotype PDA: bar-code PDA00112222 !). Central Province, Kandy District : c. 9 miles NE of Hunasgiriya , near milepost 29/21 along the road to Mahiyangana, 810 m a.s.l., fr., 14 November 1974, Davidse et al. 8412 ( K, PDA: barcode PDA00118164 !, US) ; Central Province, Kandy District.: Deltota estate, 950 m, a.s.l., Dik oya, May 1866, s. coll., C. P. 3906 ( PDA: barcode PDA00003377 !) ; Central Province, Kandy District, Knuckles Mountain Range , Near Deanston forest office, road to mini world’s end 1130 m a.s.l., 1 October 2022, N. Silva, D. Yakandawala & K. Yakandawala CO23 ( PDA: barcode PDA00120325 !), Central Province, Kandy District , Deltota, Near Kalugala, 987 m a.s.l., 30 September 2019, N. Silva, D. Yakandawala & K. Yakandawala LK 01 ( PDA: barcode PDA00120328 !). Central Province, Kandy District , Thalathuoya, near Bellwood viewpoint 5 May 2020, N. Silva, D. Yakandawala & K. Yakandawala TO01 ( PDA: barcode PDA00120331 !). Central Province, Kandy District , Panwila, Huluganga, near thaliya wetunu ella, 1259 m a.s.l., 5 November 2023, N. Silva, D. Yakandawala & K. Yakandawala PW01 ( PDA: barcode PDA00120332 !) .

Distribution:— Central Province, Kandy District.

Habitat:— The type subspecies occurs at mid-elevations of the central mountain massif, between 900 and 1,300 m a.s.l., primarily concentrated in forests on the north western slopes. The area is mainly fed by the southwest monsoon (May–September) and inter-monsoonal rains (March–April and September–October), with only a minimal dry period. Although watercourses are not currently evident in the habitat, the degraded slopes suggest that water may have been present in the area a long time ago.

Phenology:— Flowering October–April; fruiting December–June.

Figures

FIGURE 5. Type specimens of Elaeocarpus hedyosmus. Kostermans 24418, A. Holotype (K) and B. Isotype (PDA, barcode PDA00112222).

FIGURE 6. Elaeocarpus hedyosmus subsp. hedyosmus;A.Adaxial and B. Abaxial surface of leaf. C. leaf domatia. D and E Inflorescence. F. Side view of a floret. G. Birds eye view of a floret. H. Flower bud I. and J. Sepals. K. Petal. L. Stamen. M. Disk and ovary. N. Fruit. O. Seed and P. Transverse section of seed.

FIGURE 7. Elaeocarpus hedyosmus subsp. hedyosmus; A. twig. B. flower bud. C. flower, bird’s eye view. D. flower, side view. E. sepal, outer surface. F. sepal, inner surface. G. petal. H. dissected flower, showing gynoecium, disk and stamens. I. disk and gynoecium. J. stamens. K. fruit. L. seed, side view. M. stone cross section.