匍匐柳叶箬Isachne repens Keng
匍匐柳叶箬Isachne repens Keng
1．匍匐柳叶箬（禾本科图说）图版56：1-6
Isachne repens Keng in sunyatsenia 1: 129. pl. 33. 1933; Odashima et Tanaka in Journ. Soc. Trop. Agr. 12: 203. 1940;中国主要植物图说 禾本科643, 图582. 1959; Keng f. in Acta Phytotax. Sin. 10 (1): 19. 1965, excl. syn.——Isachne Aunthiana (Wight et Arn.) Miq. var. nudiglumis (Hack.) T. Koyama in Journ. Jap. Bot. 37(8): 236. 1962, non Hack. (Isachne myosotis Nees var. nudiglumis Hack. in Bull. Herb. Boiss. 7: 721. 1899); 海南植物志4: 402. 1977.——Isachne kunthiana auct. non (Wight et Arn.) Miq.: 台湾植物志5: 519, 图1419. 1978.
多年生。秆柔弱，节上易生根，匍匐地面，直立部分高5-15厘米，节上被毛。叶鞘长1-2厘米，短于节间，被细毛。鞘口及其边缘被较密的纤毛，松弛裹茎；叶舌纤毛状，长约2毫米；叶片宽披针形或卵状披针形，长3-7厘米，宽0.5-1.5厘米，顶端尖或渐尖，基部钝或圆形，两面疏生疣基小硬毛，稀少无毛，边缘加厚，软骨质，具微细的小齿。圆锥花序卵形，伸出叶鞘外，长2.5-3.5厘米，宽1.2-2厘米，分枝粗壮而斜升，通常疏生1-2刚毛，其余无毛；小穗长约2毫米，椭圆形，灰绿色；小穗柄粗直，长1-6毫米，与花序分枝均不具腺斑；两颖近相等，等长或略短于小穗，先端圆或钝，背部被短硬毛，边缘狭膜质，第一颖较窄，具7-9脉，第二颖较宽，具9-11脉；两小花同质同形，均可结实；稃体被细柔毛。颖果扁圆形，黑褐色，长约1.2毫米。花果期10-12月。
产福建、台湾、广东、广西；生于山坡林中或阴湿草地上。模式标本采自广东鼎湖山。
《Flora of China》 Vol. 22 (2006)
Isachne repens Keng
匍匐柳叶箬 pu fu liu ye ruo
Isachne kunthiana (Wight & Arnott ex Steudel) Miquel subsp. nudiglumis (Hackel) T. Koyama; I. kunthiana var. nudi-glumis (Hackel) T. Koyama; I. myosotis Nees var. nudiglumis Hackel.
Slender trailing herb, annual or short-lived perennial. Culms stoloniferous with 1 or 2 wiry roots from lower nodes, flowering branches up to 25 cm tall, nodes pubescent. Leaf sheaths glabrous or hispid, outer margin ciliate becoming setose near ligule; leaf blades lanceolate, 5–7 × 1–1.8 cm, abaxial surface glabrous or papillose-hispid, adaxial surface glabrous or thinly pilose, base obtuse to rounded, apex acuminate; ligule 1–2 mm. Panicle elliptic to ovate in outline, 3–5.5 cm, eglandular; branches ascending to spreading, branches and pedicels stout, smooth, lateral pedicels shorter than spikelets. Spikelets broadly elliptic, 2.1–2.4 mm, green; florets similar; glumes equal to spikelet or upper slightly shorter, lower glume narrower, 7–9-veined, upper 9–11-veined, densely scabrid-hispidulous, spicules longer toward apex; lemmas pale, ovate to subrotund, weakly convex, leathery, smooth, pubescent on the inrolled margins toward apex; palea of upper floret puberulous. Fl. and fr. Oct–Dec.
Moist places in forests. Fujian, Guangdong, Guangxi, Hainan, Taiwan [Japan (S Ryukyu Islands)].
This species is very close to Isachne schmidtii Hackel, from Indonesia and peninsular Malaysia, which is somewhat smaller, with shorter leaf blades, a more contracted panicle, and especially differs in its glumes extending beyond the florets. Isachne schmidtii has often been confused in the literature with I. kunthiana (Wight & Arnott ex Steudel) Miquel, from India and Sri Lanka, which also has glumes longer than the florets, but differs by its underground rhizomes and glabrous or setose glumes.
别名：匍匐柳叶若;
科名：禾本科 Gramineae
属名：柳叶箬属 Isachne
1．匍匐柳叶箬（禾本科图说）图版56：1-6
Isachne repens Keng in sunyatsenia 1: 129. pl. 33. 1933; Odashima et Tanaka in Journ. Soc. Trop. Agr. 12: 203. 1940;中国主要植物图说 禾本科643, 图582. 1959; Keng f. in Acta Phytotax. Sin. 10 (1): 19. 1965, excl. syn.——Isachne Aunthiana (Wight et Arn.) Miq. var. nudiglumis (Hack.) T. Koyama in Journ. Jap. Bot. 37(8): 236. 1962, non Hack. (Isachne myosotis Nees var. nudiglumis Hack. in Bull. Herb. Boiss. 7: 721. 1899); 海南植物志4: 402. 1977.——Isachne kunthiana auct. non (Wight et Arn.) Miq.: 台湾植物志5: 519, 图1419. 1978.
多年生。秆柔弱，节上易生根，匍匐地面，直立部分高5-15厘米，节上被毛。叶鞘长1-2厘米，短于节间，被细毛。鞘口及其边缘被较密的纤毛，松弛裹茎；叶舌纤毛状，长约2毫米；叶片宽披针形或卵状披针形，长3-7厘米，宽0.5-1.5厘米，顶端尖或渐尖，基部钝或圆形，两面疏生疣基小硬毛，稀少无毛，边缘加厚，软骨质，具微细的小齿。圆锥花序卵形，伸出叶鞘外，长2.5-3.5厘米，宽1.2-2厘米，分枝粗壮而斜升，通常疏生1-2刚毛，其余无毛；小穗长约2毫米，椭圆形，灰绿色；小穗柄粗直，长1-6毫米，与花序分枝均不具腺斑；两颖近相等，等长或略短于小穗，先端圆或钝，背部被短硬毛，边缘狭膜质，第一颖较窄，具7-9脉，第二颖较宽，具9-11脉；两小花同质同形，均可结实；稃体被细柔毛。颖果扁圆形，黑褐色，长约1.2毫米。花果期10-12月。
产福建、台湾、广东、广西；生于山坡林中或阴湿草地上。模式标本采自广东鼎湖山。
《Flora of China》 Vol. 22 (2006)
Isachne repens Keng
匍匐柳叶箬 pu fu liu ye ruo
Isachne kunthiana (Wight & Arnott ex Steudel) Miquel subsp. nudiglumis (Hackel) T. Koyama; I. kunthiana var. nudi-glumis (Hackel) T. Koyama; I. myosotis Nees var. nudiglumis Hackel.
Slender trailing herb, annual or short-lived perennial. Culms stoloniferous with 1 or 2 wiry roots from lower nodes, flowering branches up to 25 cm tall, nodes pubescent. Leaf sheaths glabrous or hispid, outer margin ciliate becoming setose near ligule; leaf blades lanceolate, 5–7 × 1–1.8 cm, abaxial surface glabrous or papillose-hispid, adaxial surface glabrous or thinly pilose, base obtuse to rounded, apex acuminate; ligule 1–2 mm. Panicle elliptic to ovate in outline, 3–5.5 cm, eglandular; branches ascending to spreading, branches and pedicels stout, smooth, lateral pedicels shorter than spikelets. Spikelets broadly elliptic, 2.1–2.4 mm, green; florets similar; glumes equal to spikelet or upper slightly shorter, lower glume narrower, 7–9-veined, upper 9–11-veined, densely scabrid-hispidulous, spicules longer toward apex; lemmas pale, ovate to subrotund, weakly convex, leathery, smooth, pubescent on the inrolled margins toward apex; palea of upper floret puberulous. Fl. and fr. Oct–Dec.
Moist places in forests. Fujian, Guangdong, Guangxi, Hainan, Taiwan [Japan (S Ryukyu Islands)].
This species is very close to Isachne schmidtii Hackel, from Indonesia and peninsular Malaysia, which is somewhat smaller, with shorter leaf blades, a more contracted panicle, and especially differs in its glumes extending beyond the florets. Isachne schmidtii has often been confused in the literature with I. kunthiana (Wight & Arnott ex Steudel) Miquel, from India and Sri Lanka, which also has glumes longer than the florets, but differs by its underground rhizomes and glabrous or setose glumes.