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Isachne confusa Ohwi. Bull. Tokyo Sci. Mus. 18: 14. 1947.

Specimen examined Kjellberg 726 BO.

50.4. Isachne confusa Ohwi. Bull. Tokyo Sci. Mus. 18: 14. 1947.

Isachne pilulifera Nees ex Steud. Henrard. Blumea 33: 471. 1940. Isachne purpurascens Glassman. Bernice P. Bishop Mus. Bull. 209: 130, f. 20- 21. 1952; Reinwardtia 122: 159-179, f.20-21. 2004. Plants perennial, caespitose. Culms 10-45 cm long, slender, wiry, ribbed, geniculately ascending; Internodes ridged. Sheaths 5-8 mm long, glabrescent below, with prominent long bulbous-based hairs above. Ligule a fringe or hairs, or absent. Blades 1.5-2.5 cm by 3-7 mm, margin cartilaginous, ciliate, hairy at base, apex acute, or acuminate. Inflorescence a panicle. Panicle open, ovate, 2-3 cm long; primary branches spreading. Spikelets solitary: fertile spikelets pedicelled; comprising 1 basal sterile florets, 1 fertile floret, without rachilla extension. Spikelets orbicular, dorsally compressed, 1 mm long, breaking up at maturity, disarticulating below each fertile floret. Glumes similar, deciduous, reaching apex of florets, thinner than fertile lemma. Lower glume oblong, 1 mm long, as long as spikelet, membraneous, no keels, 5- nerved; apex obtuse, the surface pubescent. Upper glume oblong, 1 mm long, as long as adjacent fertile lemma, membraneous, without keels, 5-nerved; apex obtuse, the surface pubescent. Florets: basal sterile florets male, with palea, separately deciduous; lemma similar to fertile lemma, 1 mm long, ovate, coriaceous. Fertile florets female; lemma orbicular, 1 mm long, coriaceous, no keel; margins involute, apex obtuse. Palea coriaceous, 2-nerved. Anthers 3, 0.6 mm long, yellow. Caryopsis with adherent pericarp. Notes Found in Andaman island, Australia, Burma, Java, and Malaysia. Distribution Central: Kolonedale, Tomata, Kamba. South: South of Soroako, Alt. 420 m; Lake Tehone, North of Lake matano, Alt. 500 m. Habitat Disturbed primary forest, ultrabasic soil. Specimen examined Vogel 5982 BO, Balgooy 3713 BO, Eyma 4013 BO.

50.5. Isachne globosa Thunb. Kuntze. Revis. Gen. Pl. 12: 778. 1891.

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