Amischotolype divaricata Duist. (2012: 63)

Boonsuk, Boonchuang, Kantachot, Chortip & Chantaranothai, Pranom, 2025, A synopsis of Amischotolype (Commelinaceae) in Thailand, with a new record, A. gracilis, Phytotaxa 716 (3), pp. 175-188 : 183

3. Amischotolype divaricata Duist. (2012: 63) ( Figure 1E–I ).

Type:— THAILAND, Chaiyaphum, near Chulabhorn Dam, 5 Aug. 1972, 600 m alt., Larsen et al. 31476 ( holotype: L0916529 !; isotypes: AAU!, BKF!, KLU n.v.) .

Thai specimens examined:— THAILAND. NORTHERN: Chiang Mai: Doi Inthanon NP, 23 Jul. 1988, Phengklai et al. 6875 ( BKF!) ; ibidem, 20 Oct. 1990, Phengklai et al. 7640 ( BKF!) ; Chiang Dao, Mae Na, 16 Jan. 2001 ( BKF!) ; Doi Suthep-Pui NP, 25 Jul. 1987, Maxwell 87-729 ( BKF!) ; ibidem, 8 Sept. 2007, Thitimetharoch & Faden 763 ( BKF!) ; ibidem, 12 Sept. 2007, Thitimetharoch & Faden 787 ( BKF!) ; ibidem, 30 Oct. 1994, Nanakorn et al. 2587 ( QBG!). Phayao: Doi Luang NP, Pu Kaeng Waterfall, 2 Nov. 2015, Muangyen 179 ( BKF!, QBG!) ; ibidem, Champa Thong Waterfall, Sutthirak et al. 10 ( BKF!) ; ibidem, 13 Oct. 2019, Sutthirak et al. 15 & 16 ( BKF). Sukhothai: Si Satchanalai NP, 18 Nov. 2014, Norsangsri 11543 ( BKF, QBG). Phitsanulok: Thung Salaeng Luang NP, 22 Apr. 1964, Pradit 851 ( BK!) ; ibidem, 25 Jul. 1966, Larsen et al. 888 ( AAU!). NORTH-EASTERN: Loei: Na Haeo, 25 Apr. 1994, Nanakorn et al. 3095 ( QBG!) ; Phu Ruea NP, 12 Dec. 1996, Nanakorn 8174 ( QBG!). Phetchabun: Nam Nao NP, 29 May 2013, Maknoi 5643 ( BKF!) ; ibidem, 8 Oct. 1988, Wilkin et al. T954 ( BKF!). EASTERN: Chaiyaphum: Near Chulabhorn Dam, 5 Aug. 1972, Larsen et al. 31476 ( AAU!, BKF!, L!). SOUTH-WESTERN: Uthai Thani: Khao Pra Ya Pai Rhu, 7 Sept. 1975, Sutheesorn 3420 ( BK!). CENTRAL: Nakhon Nayok: Khao Yai NP, 9 Jun. 2003, Maxwell 03-160 ( BKF!). SOUTH-EASTERN: Chanthaburi: Ma Kham, Ban Ang, 9 Mar. 1965, Phengnaren s.n. ( BKF!). Trat: Khlong Yai, 11 Apr. 1951, Smitinand 269 ( BKF!) .

Distribution.— Thailand, Myanmar, Laos, Cambodia, Vietnam, Sumatra.

Vernacular.—Phak plap luea ( ผักปลาบเลื้อย, Thai).

Ecology.—Rather open primary, disturbed or secondary evergreen (bamboo) or seasonal forest, on damp or moist to marshy places near streams, shaded to almost in full sun; on white sand with large rocks, sandstone, granite or shale bedrock, 50–1225 m alt.

Notes.— Amischotolype divaricata is characterized by the scrambling habit. It is similar to A. balslevii but differs in having nodes with a ring of hairs, a few lines of hairs on leaf sheaths continuously to the lower surfaces of pseudopetiole and the midrib of leaf blade, slightly shorter sepals and capsule, and hairy filaments. This species is common in northern Thailand.

Figures

FIGURE 1. Amischotolype species in the field. A–D. A. balslevii. A. Habit and stems; B. Inflorescence and glabrous leaf sheath; C. Young inflorescence; D. Infructescence with purplish white capsules; E–I. A. divaricata. E. Stem and leaves; F. Young inflorescence; G. Infructescences; H. Inflorescence with an open flower; I. Infructescence with ripened capsules. Photographs by B. Boonsuk.