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黄花狸藻Utricularia aurea

时间:2013-09-26 13:56来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):黄花狸藻 学名( Scientific Name ): Utricularia aurea Lour. 英文名( English Common Name ): 别名( Chinese Common Name ): 黄花挖耳草、水上一枝黄花 异名( Synonym ): Utricularia pilosa (Makino) Makino Utricu
中文名(Chinese Name):黄花狸藻
学名(Scientific Name):Utricularia aurea Lour.
英文名(English Common Name):
别名(Chinese Common Name):黄花挖耳草、水上一枝黄花
异名(Synonym):Utricularia pilosa (Makino) Makino  Utricularia flexuosa Vahl  Utricularia vulgaris var. pilosa Makino  Utricularia extensa Hance  Utricularia blumei (A. DC.) Miq.  Utricularia calumpitensis Llanos  Utricularia confervifolia Jackson & D. Don  Utricularia fasciculata Roxb.  Utricularia flexuosa f. gracilis Oliv.  Utricularia flexuosa var. blumei A. DC.  Utricularia macrocarpa Wall.  Utricularia reclinata Hassk.
科属(Family & Genus):狸藻科(Lentibulariaceae)狸藻属
形态特征(Description):水生草本。假根通常不存在,存在时轮生于花序梗的基部或近基部,扁平并多少膨大,长2-6厘米,粗1-3毫米,具丝状分枝。匍匐枝圆柱形,长15-50厘米,粗0.5-2毫米,具分枝。叶器多数,互生,长2-6厘米,3-4深裂达基部,裂片先羽状深裂,后一至四回二歧状深裂,末回裂片毛发状,具细刚毛。捕虫囊通常多数,侧生于叶器裂片上,斜卵球形,侧扁,具短梗,长1-4毫米;口侧生,上唇具2条常疏生分枝的刚毛状附属物,下唇无附属物。花序直立,长5-25厘米,中部以上具3-8朵多少疏离的花,无毛;花序梗圆柱形,粗0.3-1.3毫米,无鳞片;苞片基部着生,宽卵圆形,长1.5-2毫米,顶端圆形或急尖;无小苞片;花梗丝状,背腹扁,横断面呈椭圆形,长4-20毫米,于花期直立,花后下弯。花萼2裂达基部,裂片近相等,上唇稍长,卵形,花期长3-4毫米,稍肉质,顶端钝形,边缘内曲,果期明显增大,长7-9毫米,开展或反折。花冠黄色,喉部有时具橙红色条纹,外面无毛或疏生短柔毛,长10-15毫米;上唇宽卵形或近圆形,顶端圆形,长约为上方萼片的2倍,下唇较大,横椭圆形,顶端圆形或微凹,喉凸隆起呈浅囊状;距近筒状,基部圆锥状,顶端钝形,较下唇短并与其平行或成锐角叉开。雄蕊无毛;花丝线形,上部扩大,长约2毫米;药室汇合。子房球形,密生腺点,无毛;花柱长约为子房的一半,花后延长,无毛;柱头下唇半圆形,边缘具缘毛,上唇极短,钝形,无毛。蒴果球形,直径4-5毫米,顶端具喙状宿存花柱,周裂。种子多数,压扁,具5-6角和细小的网状突起,直径0.8-2毫米,角上具极狭的棱翅,淡褐色,无毛。花期6-11月,果期7-12月。
分布(Distribution):产江苏、安徽、浙江、江西、福建、台湾、湖北、湖南、广东、广西和云南。生于海拔50-2680米湖泊、池塘和稻田中。日本、东南亚至澳大利亚也有。
用途(Use):
引自植物志英文版: FOC Vol. 19 Page 481, 491
Utricularia aurea Loureiro, Fl. Cochinch. 1: 26. 1790.
黄花狸藻 huang hua li zao | Lentibulariaceae  | Utricularia
Utricularia confervifolia Jackson ex D. Don; U. extensa Hance; U. fasciculata Roxburgh; U. flexuosa Vahl; U. pilosa (Makino) Makino; U. vulgaris Linnaeus var. pilosa Makino.
Perennials or annuals, suspended aquatic. Rhizoids usually present, verticillate at base or shortly above base of peduncle, fusiform, inflated, with filiform branches. Stolons filiform to relatively thick, branched. Traps on leaf segments, stalked, obliquely ovoid, 1-4 mm, mouth lateral or basal; appendages 2 or sometimes absent, dorsal, sparsely branched, setiform. Leaves numerous on stolons, 2-8 cm, divided from base into 3 or 4(or 5) semiverticillate primary segments; primary segments ovate to oblong-lanceolate in outline, 1.5-3 cm wide, pinnately divided into secondary segments; secondary segments dichotomously divided from base into numerous further segments; ultimate segments capillary, slightly flattened, laterally and apically setulose; stipulelike auricles usually present at base of primary segments, semicircular in outline, divided dichotomously into filiform sparsely setulose segments. Inflorescences erect, 5-25 cm, 3-10-flowered, glabrous; peduncle terete, 0.5-1.5 mm thick; scales absent; bracts basifixed, broadly ovate to orbicular, 1-2 mm, apex rounded. Pedicel erect at anthesis but sharply deflexed and thickened in fruit, 0.4-2 cm, dorsiventrally compressed; bracteoles absent. Calyx lobes ovate, subequal, apex rounded to subacute; lower lobe often slightly broader than upper lobe, 2-3 mm at anthesis, becoming fleshy, 7-9 mm, and spreading to reflexed in fruit. Corolla pale yellow, 1-1.5 cm, pubescent or glabrous; lower lip transversely elliptic, base with a prominent 2-lobed swelling, apex rounded to emarginate; spur cylindric from a narrowly conic base, ± as long as and parallel with lower lip, straight or slightly curved, apex obtuse to subacute; palate pubescent; upper lip broadly ovate, apex rounded. Filaments 1-1.5 mm, curved; anther thecae ± confluent. Ovary ovoid; style evident; stigma lower lip semicircular, upper lip obsolete. Capsule globose, 4-5 mm in diam., circumscissile; persistent style greatly enlarged and elongated, often equaling or exceeding capsule. Seeds prismatic, 1-2 mm wide, 5- or 6-angled, narrowly winged on all angles; seed coat with ± isodiametric obscure reticulations. Fl. Jun-Nov, fr. Jul-Dec. 2n = 80.
Pools, lakes, swamps, river backwaters, rice fields; near sea level to 2700 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hubei, Hunan, Jiangsu, Jiangxi, Shandong, Taiwan, Yunnan, Zhejiang [Cambodia, India, Indonesia, Japan, Kashmir, Korea, Laos, Nepal, Pakistan, Papua New Guinea, Philippines, Sri Lanka, Thailand, Vietnam; Australia].







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