荏弱柳叶箬Isachne debilis Rendle
荏弱柳叶箬Isachne debilis Rendle
3.荏弱柳叶箬（禾本科图说）图版56：11-14
Isachne debilis Rendle in Journ. Linn. Soc. Bot. 36: 322. 1904; Merr. in Philip. Journ. Sci. Bot. l, suppl. 350. 1906; Hayata, Icon. Pl. Formos. 7: 58. 1918, p. p.; Honda in Journ. Fac. Sci. Univ. Tokyo sect. lll, Bot. 3: 278. 1930: Ohwi in Acta Pkytotax. et Geobot. 11: 55. 1942;中国主要植物图说 禾本科647, 图584. 1959; Keng f. in Acta Phytotax. Sin. 10 (1): 21. 1965; 台湾的禾草469, pl. 129. 1975; 台湾植物志5: 517. pl. 1417. 1978. ——Isachne monaicola auct. non Buse: Hack. in Bull. Herb. Boiss. ser. 2, 4: 528. 1904; Matsum. et Hayata in Journ. Coli. Sci. Univ. Tokyo 22: 499. 1906; S. T. Dunn in Journ. Linn. Soc. Bot. 29: 459. 1911; Honda in Journ. Fac. Sci. Univ. Tokyo sect. lll, Bot. 3: 281. 1930.
一年生。秆细弱，节上易生根，伏卧地面，直立部分高3-10厘米。叶鞘短于节间，疏生柔毛，边缘及鞘口具纤毛．叶舌极短，顶端纤毛状；叶片长1-2厘米，宽3-5毫米，卵状披针形，顶端渐尖，基部钝圆，无明显增厚的软骨质边缘，两面被贴伏的细毛。圆锥花序较紧密，卵圆形，长约2厘米，宽约1厘米，分枝短，近基部即有分枝和小穗，每一分枝具2-6个小穗，花序分枝与小穗柄无腺斑；小穗长约1.2毫米，近球形；两颖近等长，顶端钝或骤尖，具5脉，中部以上疏生短硬毛；两小花同质同形，长约1毫米，均为两性，或第一小花有时为雄性；内外稃均密生短柔毛。颖果椭圆形。染色体数2n=20（Hsu，1975）。花果期5-10月。
产台湾、福建；生于低海拔的湿润草地中。菲律宾亦有分布。据文献记载，福建亦产，但作者未见标本。模式标本采自台湾（淡水）。
《Flora of China》 Vol. 22 (2006)
Isachne myosotis Nees
荏弱柳叶箬 ren ruo liu ye ruo
Isachne micrantha Merrill; I. myosotis var. micrantha (Merrill) Jansen; I. myosotis var. minor Honda; I. nipponensis var. minor (Honda) Nemoto.
Small mat-forming annual. Culms very slender, prostrate, branching and rooting at nodes, flowering branches up to 10 cm tall. Leaf sheaths thinly to densely hispid with spreading hairs, or hairs confined to margins; leaf blades lanceolate-ovate, 1–2(–3) × 0.2–0.5 cm, both surfaces hispid, densely or sometimes inconspicuously appressed-hairy, base rounded, apex acute; ligule ca. 0.7 mm. Panicle ovate or contracted, 1.5–5 cm, eglandular, spikelets usually 15–30 (fewer in depauperate specimens); branches spiculate to base, with short stiff branchlets and pedicels, smooth. Spikelets subglobose, 1–1.4 mm, tinged purplish; florets similar; glumes equal to spikelet, separated by a short internode, ovate-oblong, 5(–7)-veined, hispid usually above middle, occasionally hispid almost to base or almost glabrous, apex obtuse; lemmas strongly convex, leathery, puberulous to densely pubescent. Fl. and fr. May–Oct. 2n = 20.
Wet ground, shallow water in ditches. Fujian, Taiwan [Indonesia, New Guinea, Philippines].
This small species is recognizable on account of its delicate, mat-forming habit, small, broad leaf blades, smooth panicle branches, and tiny spikelets. It is barely separable from Isachne pauciflora.
科名：禾本科 Gramineae
属名：柳叶箬属 Isachne
3.荏弱柳叶箬（禾本科图说）图版56：11-14
Isachne debilis Rendle in Journ. Linn. Soc. Bot. 36: 322. 1904; Merr. in Philip. Journ. Sci. Bot. l, suppl. 350. 1906; Hayata, Icon. Pl. Formos. 7: 58. 1918, p. p.; Honda in Journ. Fac. Sci. Univ. Tokyo sect. lll, Bot. 3: 278. 1930: Ohwi in Acta Pkytotax. et Geobot. 11: 55. 1942;中国主要植物图说 禾本科647, 图584. 1959; Keng f. in Acta Phytotax. Sin. 10 (1): 21. 1965; 台湾的禾草469, pl. 129. 1975; 台湾植物志5: 517. pl. 1417. 1978. ——Isachne monaicola auct. non Buse: Hack. in Bull. Herb. Boiss. ser. 2, 4: 528. 1904; Matsum. et Hayata in Journ. Coli. Sci. Univ. Tokyo 22: 499. 1906; S. T. Dunn in Journ. Linn. Soc. Bot. 29: 459. 1911; Honda in Journ. Fac. Sci. Univ. Tokyo sect. lll, Bot. 3: 281. 1930.
一年生。秆细弱，节上易生根，伏卧地面，直立部分高3-10厘米。叶鞘短于节间，疏生柔毛，边缘及鞘口具纤毛．叶舌极短，顶端纤毛状；叶片长1-2厘米，宽3-5毫米，卵状披针形，顶端渐尖，基部钝圆，无明显增厚的软骨质边缘，两面被贴伏的细毛。圆锥花序较紧密，卵圆形，长约2厘米，宽约1厘米，分枝短，近基部即有分枝和小穗，每一分枝具2-6个小穗，花序分枝与小穗柄无腺斑；小穗长约1.2毫米，近球形；两颖近等长，顶端钝或骤尖，具5脉，中部以上疏生短硬毛；两小花同质同形，长约1毫米，均为两性，或第一小花有时为雄性；内外稃均密生短柔毛。颖果椭圆形。染色体数2n=20（Hsu，1975）。花果期5-10月。
产台湾、福建；生于低海拔的湿润草地中。菲律宾亦有分布。据文献记载，福建亦产，但作者未见标本。模式标本采自台湾（淡水）。
《Flora of China》 Vol. 22 (2006)
Isachne myosotis Nees
荏弱柳叶箬 ren ruo liu ye ruo
Isachne micrantha Merrill; I. myosotis var. micrantha (Merrill) Jansen; I. myosotis var. minor Honda; I. nipponensis var. minor (Honda) Nemoto.
Small mat-forming annual. Culms very slender, prostrate, branching and rooting at nodes, flowering branches up to 10 cm tall. Leaf sheaths thinly to densely hispid with spreading hairs, or hairs confined to margins; leaf blades lanceolate-ovate, 1–2(–3) × 0.2–0.5 cm, both surfaces hispid, densely or sometimes inconspicuously appressed-hairy, base rounded, apex acute; ligule ca. 0.7 mm. Panicle ovate or contracted, 1.5–5 cm, eglandular, spikelets usually 15–30 (fewer in depauperate specimens); branches spiculate to base, with short stiff branchlets and pedicels, smooth. Spikelets subglobose, 1–1.4 mm, tinged purplish; florets similar; glumes equal to spikelet, separated by a short internode, ovate-oblong, 5(–7)-veined, hispid usually above middle, occasionally hispid almost to base or almost glabrous, apex obtuse; lemmas strongly convex, leathery, puberulous to densely pubescent. Fl. and fr. May–Oct. 2n = 20.
Wet ground, shallow water in ditches. Fujian, Taiwan [Indonesia, New Guinea, Philippines].
This small species is recognizable on account of its delicate, mat-forming habit, small, broad leaf blades, smooth panicle branches, and tiny spikelets. It is barely separable from Isachne pauciflora.