长梗耳挖草Utricularia limosa
中文名(Chinese Name):长梗耳挖草
学名(Scientific Name):Utricularia limosa R. Br.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Nelipus limosa (R. Br.) Raf.
科属(Family & Genus):狸藻科(Lentibulariaceae)狸藻属
形态特征(Description):陆生小草本。假根少数,具多数长约0.5毫米的乳头状分枝。匍匐枝丝状,具分枝。叶器生于匍匐枝上,狭线形,长1.5-2.5厘米,宽约0.3毫米,顶端急尖或微钝,具1脉,无毛,于开花前凋萎,稀于花期宿存。捕虫囊少数,生于匍匐枝及叶器上,斜卵球形,长0.5-1毫米,具长柄,柄长约为捕虫囊的2-3倍;口侧生,上唇具2条密生细刚毛的钻形附属物,下唇无附属物。花序直立,长5-25厘米,无毛,中部以上具2-10朵疏离的花;花序梗丝状,粗0.5-0.8毫米,具少数与苞片相似的鳞片;苞片中部着生,狭椭圆形,长1.5-2毫米,顶端急尖,基部急尖或斜截形;小苞片不存在;花梗丝状,稍背腹扁,长2-6毫米,曲折上升,表面具微小的乳突。花萼2裂达基部,裂片不相等,无毛;上唇横椭圆形,顶端圆形,长1.1-1.5毫米,下唇倒卵状长圆形,顶端圆形,长1.3-2毫米。花冠淡紫色,长4.5-6毫米,无毛;上唇宽卵形,长约为上方萼片的2倍,顶端圆形,下唇较大,四方形,至中部2裂,裂片卵伏长圆形,喉凸隆起,形成2个浅囊;距细筒状,基部圆锥形,顶端钝形,稍长于下唇并与其成直角或锐角叉开。雄蕊无毛;花丝线形,明显弯曲,上部扩大,长约0.6毫米; 2药室汇合。雌蕊无毛;子房球形;花柱粗短;柱头下唇半圆形,上唇消失。蒴果球形,长约2毫米,果皮膜质,室背开裂。种子多数,近球形,长0.25-0.3毫米,种皮薄,无毛,具网状突起,网格近等径。花期8-9月,果期9-10月。
分布(Distribution):产广东和广西南部。生于水湿草地或稻田中。也分布于中南半岛、马来西亚、印度尼 西亚和澳大利亚。
用途(Use):
引自植物志英文版:FOC Vol. 19 Page 481, 488
Utricularia limosa R. Brown, Prodr. 432. 1810.
长梗狸藻 chang geng li zao| Lentibulariaceae | Utricularia
Nelipus limosa (R. Brown) Rafinesque; Utricularia verticillata Benjamin.
Perennials or annuals, subaquatic or terrestrial. Rhizoids and stolons capillary, branched. Traps on stolons and leaves, long stalked, obliquely ovoid, 0.5-1 mm, covered externally with clavate glands, mouth lateral; appendages 2, dorsal, branched, setiform. Leaves numerous, from peduncle base and stolon nodes, long petiolate, to 5 cm including petiole; leaf blade narrowly oblong in outline, pinnately divided; segments alternate, capillary, terete, glabrous. Inflorescences erect, 5-25 cm, 2-10-flowered; peduncle terete, 0.5-0.8 mm thick; scales few, similar to bracts; bracts basisolute, elliptic, 1.5-2 mm, base obliquely truncate, margin erosely denticulate, apex acute. Pedicel ascending, 2-6 mm, filiform, slightly dorsiventrally flattened, minutely papillose; bracteoles absent. Calyx lower lobe obovate-oblong, 1.3-2 mm, apex rounded; upper lobe transversely elliptic, 1.1-1.5 mm, apex rounded. Corolla violet, with a yellow spot at base of lower lip, 4.5-6 mm; lower lip subquadrate, longer than upper lip, 2-lobed to ca. 1/2 its length, lobes ovate-oblong; spur narrowly cylindric from a conic base, somewhat longer than corolla lower lip, apex obtuse; palate with a slightly raised, rounded marginal rim; upper lip broadly ovate, ca. 2 × as long as upper calyx lobe, apex rounded. Filaments ca. 0.6 mm, strongly curved; anther thecae confluent. Ovary globose; style short; stigma lower lip semicircular and margin papillose, upper lip obsolete. Capsule globose, 2-3 mm, dehiscing by an ovate-oblong ventral pore. Seeds globose, 0.2-0.3 mm in diam.; seed coat with prominent nearly isodiametric coarse reticulations. Fl. Aug-Sep, fr. Sep-Oct.
Swamps, rice fields, wet grasslands; near sea level. S Guangdong, S Guangxi, Hainan [Indonesia (Papua Barat), Laos, Malaysia (peninsular), Thailand, Vietnam; N Australia].
(责任编辑:徐晔春)
学名(Scientific Name):Utricularia limosa R. Br.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Nelipus limosa (R. Br.) Raf.
科属(Family & Genus):狸藻科(Lentibulariaceae)狸藻属
形态特征(Description):陆生小草本。假根少数,具多数长约0.5毫米的乳头状分枝。匍匐枝丝状,具分枝。叶器生于匍匐枝上,狭线形,长1.5-2.5厘米,宽约0.3毫米,顶端急尖或微钝,具1脉,无毛,于开花前凋萎,稀于花期宿存。捕虫囊少数,生于匍匐枝及叶器上,斜卵球形,长0.5-1毫米,具长柄,柄长约为捕虫囊的2-3倍;口侧生,上唇具2条密生细刚毛的钻形附属物,下唇无附属物。花序直立,长5-25厘米,无毛,中部以上具2-10朵疏离的花;花序梗丝状,粗0.5-0.8毫米,具少数与苞片相似的鳞片;苞片中部着生,狭椭圆形,长1.5-2毫米,顶端急尖,基部急尖或斜截形;小苞片不存在;花梗丝状,稍背腹扁,长2-6毫米,曲折上升,表面具微小的乳突。花萼2裂达基部,裂片不相等,无毛;上唇横椭圆形,顶端圆形,长1.1-1.5毫米,下唇倒卵状长圆形,顶端圆形,长1.3-2毫米。花冠淡紫色,长4.5-6毫米,无毛;上唇宽卵形,长约为上方萼片的2倍,顶端圆形,下唇较大,四方形,至中部2裂,裂片卵伏长圆形,喉凸隆起,形成2个浅囊;距细筒状,基部圆锥形,顶端钝形,稍长于下唇并与其成直角或锐角叉开。雄蕊无毛;花丝线形,明显弯曲,上部扩大,长约0.6毫米; 2药室汇合。雌蕊无毛;子房球形;花柱粗短;柱头下唇半圆形,上唇消失。蒴果球形,长约2毫米,果皮膜质,室背开裂。种子多数,近球形,长0.25-0.3毫米,种皮薄,无毛,具网状突起,网格近等径。花期8-9月,果期9-10月。
分布(Distribution):产广东和广西南部。生于水湿草地或稻田中。也分布于中南半岛、马来西亚、印度尼 西亚和澳大利亚。
用途(Use):
引自植物志英文版:FOC Vol. 19 Page 481, 488
Utricularia limosa R. Brown, Prodr. 432. 1810.
长梗狸藻 chang geng li zao| Lentibulariaceae | Utricularia
Nelipus limosa (R. Brown) Rafinesque; Utricularia verticillata Benjamin.
Perennials or annuals, subaquatic or terrestrial. Rhizoids and stolons capillary, branched. Traps on stolons and leaves, long stalked, obliquely ovoid, 0.5-1 mm, covered externally with clavate glands, mouth lateral; appendages 2, dorsal, branched, setiform. Leaves numerous, from peduncle base and stolon nodes, long petiolate, to 5 cm including petiole; leaf blade narrowly oblong in outline, pinnately divided; segments alternate, capillary, terete, glabrous. Inflorescences erect, 5-25 cm, 2-10-flowered; peduncle terete, 0.5-0.8 mm thick; scales few, similar to bracts; bracts basisolute, elliptic, 1.5-2 mm, base obliquely truncate, margin erosely denticulate, apex acute. Pedicel ascending, 2-6 mm, filiform, slightly dorsiventrally flattened, minutely papillose; bracteoles absent. Calyx lower lobe obovate-oblong, 1.3-2 mm, apex rounded; upper lobe transversely elliptic, 1.1-1.5 mm, apex rounded. Corolla violet, with a yellow spot at base of lower lip, 4.5-6 mm; lower lip subquadrate, longer than upper lip, 2-lobed to ca. 1/2 its length, lobes ovate-oblong; spur narrowly cylindric from a conic base, somewhat longer than corolla lower lip, apex obtuse; palate with a slightly raised, rounded marginal rim; upper lip broadly ovate, ca. 2 × as long as upper calyx lobe, apex rounded. Filaments ca. 0.6 mm, strongly curved; anther thecae confluent. Ovary globose; style short; stigma lower lip semicircular and margin papillose, upper lip obsolete. Capsule globose, 2-3 mm, dehiscing by an ovate-oblong ventral pore. Seeds globose, 0.2-0.3 mm in diam.; seed coat with prominent nearly isodiametric coarse reticulations. Fl. Aug-Sep, fr. Sep-Oct.
Swamps, rice fields, wet grasslands; near sea level. S Guangdong, S Guangxi, Hainan [Indonesia (Papua Barat), Laos, Malaysia (peninsular), Thailand, Vietnam; N Australia].
(责任编辑:徐晔春)
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