taxonID	type	description	language	source
9B1FBE468364FF82FF662A7AFCCBFCCD.taxon	materials_examined	TYPE: — LAOS. Bolikhamxai Province: Pak Kading District, near Ban Na Phong, Nam Kading National Protected Area, along the stream in dry evergreen forest, 18.197917 ° N, 104.396444 ° E, 231 m elev., 6 November 2023, with flowers, P. Souladeth, T. Vongthavone, K. Souvannakhoummane, D. Kongxaisavath Z 662 (holotype FOF [FOF 0007158!]; isotypes KAG [KAG 187086!], VNM [VNM 00071634!]). Figures 1 & 2.	en	Phengmala, Kajonesuk, Souladeth, Phetlasy, Kongxaisavath, Deuanta, Sengthong, Anousone, Souvannakhoummane, Keooudone, Dang, Van-Son, Yamamoto, Takenori, Tagane, Shuichiro (2025): Knema namkadingensis, a new species of Myristicaceae from Central Laos. Phytotaxa 732 (3): 247-252, DOI: 10.11646/phytotaxa.732.3.2, URL: https://doi.org/10.11646/phytotaxa.732.3.2
9B1FBE468364FF82FF662A7AFCCBFCCD.taxon	diagnosis	Knema namkadingensis is characterized by its small habit 2.5 – 3 m tall, small leaves (blades up to 9.4 cm long with petiole up to 0.7 cm long), small male flowers 2.5 – 3 mm in diam. at anthesis with pedicel 2 mm long, 6 – 7 anthers per flower, and obovoid-ellipsoid fruits with acute apex, by which combination it is clearly distinguished from other species of Knema in Laos and surrounding countries.	en	Phengmala, Kajonesuk, Souladeth, Phetlasy, Kongxaisavath, Deuanta, Sengthong, Anousone, Souvannakhoummane, Keooudone, Dang, Van-Son, Yamamoto, Takenori, Tagane, Shuichiro (2025): Knema namkadingensis, a new species of Myristicaceae from Central Laos. Phytotaxa 732 (3): 247-252, DOI: 10.11646/phytotaxa.732.3.2, URL: https://doi.org/10.11646/phytotaxa.732.3.2
9B1FBE468364FF82FF662A7AFCCBFCCD.taxon	description	Description: — Treelet, 2.5 – 3 m tall. Young twigs ca. 1 mm in diam., densely covered with pale brown tomentum of simple hairs to 0.1 mm long and stellate hairs ca. 0.1 mm in diam., old twigs greyish brown, glabrous. Leaves alternate; petioles 0.4 – 0.7 cm long, densely hairy when young, glabrescent; blades narrowly elliptic to lanceolate, 3.5 – 9.4 × 0.7 – 2 cm, chartaceous, adaxial surface greyish green, greenish brown, dark brown, slightly lustrous, glabrous, abaxial surface pale creamy brown, glabrous, apex acute, margin entire, recurved when dry, base cuneate, midrib prominent on both surfaces, covered with hairs when young, secondary veins 14 – 19 pairs, prominent on both surfaces, tertiary veins slightly visible adaxially, inconspicuous abaxially. Male inflorescences 7 – 8 mm long, 2 – 8 - flowered, subsessile to pedunculate up to 0.7 mm long. Male flowers 2.5 - 3 mm in diam.; pedicel 2 mm long, densely covered with short simple appressed hairs and stellate hairs; bracteoles situated between the middle and apex of the pedicel, persistent, ovate-triangular, 0.9 mm long, densely covered with short simple appressed hairs, apex obtuse; perianth in bud obovoid, 2.5 – 3 × 2 mm, lobes 3, splitting the bud to ca. halfway; staminal disc circular, flattish, 1.3 mm in diam. (including anthers), anthers 6 – 7, sessile, 0.6 mm long, column tapering to base, 1 mm long, glabrous. Female inflorescences and flowers not seen. Fruits obovate-ellipsoid, 2.6 cm long, 1.1 – 1.3 cm in diam., overed with dense hairs 0.1 mm long, stalk 2 – 3 mm long, pubescent, pericarp 0.4 – 0.6 mm thick, incurved. Seeds ellipsoid, 2.1 cm long, 0.8 cm in diam.; aril laciniate to ca. half its length, red, enclosing seed or at apex slightly open.	en	Phengmala, Kajonesuk, Souladeth, Phetlasy, Kongxaisavath, Deuanta, Sengthong, Anousone, Souvannakhoummane, Keooudone, Dang, Van-Son, Yamamoto, Takenori, Tagane, Shuichiro (2025): Knema namkadingensis, a new species of Myristicaceae from Central Laos. Phytotaxa 732 (3): 247-252, DOI: 10.11646/phytotaxa.732.3.2, URL: https://doi.org/10.11646/phytotaxa.732.3.2
9B1FBE468364FF82FF662A7AFCCBFCCD.taxon	materials_examined	Additional specimen examined: — LAOS. Bolikhamxai Province: Pak Kading District, near Ban Naphong, Nam Kading National Protected Area, in dry evergreen forest, 18.21978 ° N, 104.38402 ° E, 620 m elev., 18 March 2024, with fruits, S. Tagane, P. Souladeth, V. S. Dang, T. Yamamoto, K. Souvannakhoummane, N. Tanaka, D. Kongxaisavath, K. Phengmala, A. Sengthong, Q. B. Nguyen, K. Takahashi Z 1146 (FOF [FOF 0007157!]; KAG [KAG 187549!], VNM [VNM 00071634!]).	en	Phengmala, Kajonesuk, Souladeth, Phetlasy, Kongxaisavath, Deuanta, Sengthong, Anousone, Souvannakhoummane, Keooudone, Dang, Van-Son, Yamamoto, Takenori, Tagane, Shuichiro (2025): Knema namkadingensis, a new species of Myristicaceae from Central Laos. Phytotaxa 732 (3): 247-252, DOI: 10.11646/phytotaxa.732.3.2, URL: https://doi.org/10.11646/phytotaxa.732.3.2
9B1FBE468364FF82FF662A7AFCCBFCCD.taxon	distribution	Distribution: — LAOS (Bolikhamxai Province). Currently known only from the narrow area of the type locality and its vicinities.	en	Phengmala, Kajonesuk, Souladeth, Phetlasy, Kongxaisavath, Deuanta, Sengthong, Anousone, Souvannakhoummane, Keooudone, Dang, Van-Son, Yamamoto, Takenori, Tagane, Shuichiro (2025): Knema namkadingensis, a new species of Myristicaceae from Central Laos. Phytotaxa 732 (3): 247-252, DOI: 10.11646/phytotaxa.732.3.2, URL: https://doi.org/10.11646/phytotaxa.732.3.2
9B1FBE468364FF82FF662A7AFCCBFCCD.taxon	biology_ecology	Habitat and Ecology: — Knema namkadingensis grows in dry evergreen forest, from 230 – 620 m altitude. Flowering specimen was collected in November, and fruiting in March.	en	Phengmala, Kajonesuk, Souladeth, Phetlasy, Kongxaisavath, Deuanta, Sengthong, Anousone, Souvannakhoummane, Keooudone, Dang, Van-Son, Yamamoto, Takenori, Tagane, Shuichiro (2025): Knema namkadingensis, a new species of Myristicaceae from Central Laos. Phytotaxa 732 (3): 247-252, DOI: 10.11646/phytotaxa.732.3.2, URL: https://doi.org/10.11646/phytotaxa.732.3.2
9B1FBE468364FF82FF662A7AFCCBFCCD.taxon	etymology	Etymology: — The specific epithet “ namkadingensis ” is derived from Nam Kading National Protected Area, in which the species was first discovered.	en	Phengmala, Kajonesuk, Souladeth, Phetlasy, Kongxaisavath, Deuanta, Sengthong, Anousone, Souvannakhoummane, Keooudone, Dang, Van-Son, Yamamoto, Takenori, Tagane, Shuichiro (2025): Knema namkadingensis, a new species of Myristicaceae from Central Laos. Phytotaxa 732 (3): 247-252, DOI: 10.11646/phytotaxa.732.3.2, URL: https://doi.org/10.11646/phytotaxa.732.3.2
9B1FBE468364FF82FF662A7AFCCBFCCD.taxon	vernacular_names	Vernacular name: — ເລ ື ອǪມ ້ ¶ ນ ໍ ້ ¶ ກŖǪ ິ ງ (Leuad Ma Nam kading), proposed here. “ Leuad Ma ” is the common name for the genus Knema species in general in Laos, “ Nam kading ” refers to the type locality.	en	Phengmala, Kajonesuk, Souladeth, Phetlasy, Kongxaisavath, Deuanta, Sengthong, Anousone, Souvannakhoummane, Keooudone, Dang, Van-Son, Yamamoto, Takenori, Tagane, Shuichiro (2025): Knema namkadingensis, a new species of Myristicaceae from Central Laos. Phytotaxa 732 (3): 247-252, DOI: 10.11646/phytotaxa.732.3.2, URL: https://doi.org/10.11646/phytotaxa.732.3.2
9B1FBE468364FF82FF662A7AFCCBFCCD.taxon	conservation	Preliminary conservation assessment: — Data Deficient (DD). This new species necessitates additional observations and samplings to ascertain the presence of other populations in different locations. It is currently known only from two localities along Nam Thone (ນ ໍ ້ ¶ ທອນ) River that are about 2 km apart each other. Due to the insufficient data on its distribution and population size in the wild, we suggest categorize the species as Data Deficient (DD) based on the guidelines of the IUCN (2024). However, being categorized as DD does not imply that the species is not at risk. Additional surveys are essential, as the current information is inadequate to accurately assess its conservation status.	en	Phengmala, Kajonesuk, Souladeth, Phetlasy, Kongxaisavath, Deuanta, Sengthong, Anousone, Souvannakhoummane, Keooudone, Dang, Van-Son, Yamamoto, Takenori, Tagane, Shuichiro (2025): Knema namkadingensis, a new species of Myristicaceae from Central Laos. Phytotaxa 732 (3): 247-252, DOI: 10.11646/phytotaxa.732.3.2, URL: https://doi.org/10.11646/phytotaxa.732.3.2
9B1FBE468364FF82FF662A7AFCCBFCCD.taxon	discussion	Notes: — Among the nine species of Knema previously known in the flora of Laos, K. namkadingensis might resemble K. tonkinensis. However, it can be easily distinguished by its smaller leaves at 3.5 – 9.4 × 0.7 – 2 cm (vs. 12 – 23 × 3 – 5.5 cm), shorter petiole at 0.4 – 0.7 cm long (vs. 0.7 – 1.2 cm long), fewer anthers of 6 – 7 (vs. 9), and thinner pericarp at 0.4 – 0.6 mm thick (vs. ca. 2 mm thick) (de Wilde 1979).	en	Phengmala, Kajonesuk, Souladeth, Phetlasy, Kongxaisavath, Deuanta, Sengthong, Anousone, Souvannakhoummane, Keooudone, Dang, Van-Son, Yamamoto, Takenori, Tagane, Shuichiro (2025): Knema namkadingensis, a new species of Myristicaceae from Central Laos. Phytotaxa 732 (3): 247-252, DOI: 10.11646/phytotaxa.732.3.2, URL: https://doi.org/10.11646/phytotaxa.732.3.2
