Meijer 11117, 11118 BO; Eyma 3464, 3739, 4004 BO; Mehra 120 BO.
50.6. Isachne kunthiana Wight Arn. ex Steud Nees ex Miq. Fl. Ned. Ind. 3:
460. 1857. Panicum kunthianum Wight Arn. ex Steud. Syn. Pl. Glumac. 1: 96. 1854.
Isachne elatior Hook.f. Fl. Brit. India 721: 22. 1897. Isachne repens Keng, Sunyatsenia 12-3: 129-130, pl. 33. 1933.
Isachne semitalis Ridl. Fl. Malay. Penin 5: 237. 1925.
Plants perennial, procumbent and rooting freely at the nodes. Culms 15- 50 cm long. Nodes bearded. Sheaths pilose, with tubercle-based hairs, outer margins hairy.
Ligule a fringe of hairs. Blades 2-6 cm by 4-12 mm, margin cartilaginous, apex acute, or acuminate, the surface pilose, sparsely hairy, with tubercle-based hairs.
Inflorescence a panicle. Panicle open, ovaye, 2-10 cm long. Spikelets solitary: fertile spikelets pedicelled. Fertile spikelets comprising 2 fertile florets, without rachilla
extension; elliptic, or obovate, 2-3.5 mm long, dorsally compressed, breaking up at maturity, disarticulating below each fertile floret. Glumes similar, deciduous, reaching
apex of florets, thinner than fertile lemma. Lower glume lanceolate, or ovate, 1.8-3.2 mm long, membraneous, no keels, 5-nerved; surface hispidulous, hairy above, apex
acuminate. Upper glume lanceolate, or avate, 2-2.5 mm long, as long as spikelet, membraneous, no keel; surface setose, hairy above; apex attenuate. Florets: fertile
lemma lanceolate, or ovate, 2-3.5 mm long, chartaceous, no keel; margin involute, apex acuminate. Palea chartaceous, 2-nerved. Anthers 3. Caryopsis with adherent
pericarp.
Notes
Found in Eastern Asia, India, and Malesia.
Distribution at Sulawesi
Celebes.
Habitat Specimen examined
Kurniawan 22 WALL.
50.7. Isachne minutula Gaudich. Kunth. Revis. Gramin. 1: Suppl. .. 1829; Rev.
Gram. 2: 407. Pl. 117. 1831. Isachne conferta Merr. Philipp. J. Sci. 9: 261. 1914; Reinwardtia 122: 159-
179. 2004. Isachne geniculata Griff. Not. Pl. Asiat. : 41. 1851.
Isachne miliacea var. madurensis Jansen. Reinwardtia 2: 285. 1953. Panicum macilentum J. Presl. Reliq. Haenk. 14-5: 310. 1830.
Plants perennial, caespitose. Culms 5-45 cm long, erect, or ascending, rooting from the lower nodes. Sheaths 0.5-2 cm long, with tubercle-based hairs. Ligule a
fringe of hairs, 0.8-1.4 mm long. Blades 1-6 cm by 3-5 mm, nervation with 5 secondary nerves, linear, lanceolate, margins scaberulous. Inflorescence a panicle.
Panicle contracted, lanceolate, or elliptic, 2-5 cm long; primary panicle branches. Spikelets in pairs. Fertile spikelets pedicelled. Pedicels filiform, glandular. Fertile
spikelets comprising 1 fertile florets, no rhachilla extension; obovate, dorsally compressed, 1.2-2 by 0.8-2 mm, breaking up at maturity, disarticulating below each
fertile floret. Glumes similar, deciduous, reaching apex of florets, thinner than fertile lemma. Lower glume elliptic, 1.4-1.9 mm long, as long as upper glume, as long as
spikelet, herbaceous, no keels, 7-nerved, surface asperulous, apex obtuse. Upper glume elliptic, or obovate, 1.4-1.9 mm long, as long as spikelet, herbaceous, no keels,
7-9-nerved; surface asperulous, apex obtuse. Florets: basal sterile florets male, with palea; lemma oblong 1.3-2 mm long, sulcate, obtuse; palea 1.2-1.9 mm long. Fertile
florets female. Fertile lemma elliptic, 0.9-1.4 mm long, coriaceous, no keel; lemma surface pubescent, margins involute, apex obtuse. Palea 0.8-1.3 mm long, coriaceous,
surface puberulous. Anthers 3.
Notes
Found in India, Indo-China, and Malesia.
Distribution at Sulawesi
Celebes.
Habitat Specimen examined
Manitik 59 WALL. 50.8.
Isachne myosotis Nees. Hooker’s J. Bot. Kew Gard. Misc. 2: 98. 1850.
Isachne commelinifolia Warb. Repert. Spec. Nov. Regni Veg. 16: 352. 1920. Isachne debilis Rendle. J. Linn. Soc., Bot., 36253: 322. 1904.
Isachne depauperata Hack. ex Merr. Enum. Philipp. Fl. Pl. 1: 58. 1922. Isachne micrantha Merr. Philipp. J. Sci. 5: 168. 1910.
Isachne pauciflora Hack. Publ. Bur. Sci. Gov. Lab. 35: 80. 1905.
Plants annual, mat forming, or caespitose. Culms up to 10 cm long, less than 1 mm thick, hollow, branches, rooting at the base. Nodes glabrous; internodes up to 2
cm, glabrous. Sheaths pilose. Ligule c. 0.9 mm long, a fringe of hairs. Blades 1.5 cm long by 5 mm long, lanceolate-ovate, both surface hispid, densely or sometimes
inconspicuously appressed hairy, base rounded, apex acute. Inflorescence c. 4 – 14 cm long, a panicle with c. 14 spikelets, eglandular, contracted, elliptic, branches smooth.
Spikelets c. 1.4 mm long, solitary, subglobose, green; pedicels c. 5 mm long; fertile spikelets pedicelled, comprising 2 fertile florets, without rachilla extension, orbicular,
dorsally compressed, breaking up at maturity, disarticulating below each fertile floret. Glumes similar, deciduous, shorter than spikelet, thinner than fertile lemma. Lower
glume 1.4 mm long, as long as upper glume, as long as spikelets, membranous, without keels, surface glabrous, or hispidulous, apex obtuse. Upper glume, as long as adjacent
fertile lemma, membraneous, keels absent, the surface glabrous, or hispidulous, apex obtuse. Floret with fertile lemma elliptic, or orbicular, c. 1.2 mm long, coriaceous,
without keels; lemma surface puberulous, margins involute, apex obtuse; palea coriaceous, 2-nerved. Anthers 3.
Notes
Found in China, Eastern Asia, Indo-China, and Malesia.
Distribution at Sulawesi
Central: Mt. Roroka Timbu-West slope, Alt. 1900 m, 0 30’ – 1
30’ S 119 30’
– 120 30’ E; Wera waterfall near Parampadende, c. 25 km SW of Palu, Alt. 250 m, 0
30’ – 1 30’ S 119
30’ – 120 30’ E; Mt. Nokilalaki, Alt. 1700-2200 m, 01
13’ S 120
08’ E. South: Masamba, Kamboena-top, Alt. 2860; Celebes O, O.A.; Masamba, o-zyde v. Takalar, Alt. 2400-2000 m; Todjamboe, boven Palopo, c. 700 m.;
Rante Lemo, Alt.1500 m. Habitat
Tiny herb creeping in mud of small pool, montane forest of Fagaceae + Myrtaceae, forming a mat on rocks base of waterfall, open areas.
Specimen examined
Eyma 1373, 1508 BO; Balgooy 3156, 3614 BO; Meijer 9867 BO; Steenis 10352 BO; Kjellberg 3003 BO.
50.9. Isachne pulchella Roth ex Roem. Syst. Veg. 2: 476. 1817.
