资料库编号: Database ID: |
MY-10006 |
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中文名称: Chinese Name: |
短梗挖耳草 |
中文別名: | 密花狸藻 |
学名: Scientific Name: | Utricularia caerulea [找同属植物] |
学名2: Syn. Scientific Name: | Utricularia nivea Vahl |
植物科名: Family Name: | 狸藻科 Lentibulariaceae [找同科植物] |
生长习性: Living Behavior | 陆生小草本 |
图片花色: | 紫_purple_蓝_blue |
生长环境: Living Environment: | 水湿草地 |
输入时间: Input Time: | 201712 |
Remarks: 中国植物志: 陆生小草本。假根少数至多数,丝状,不分枝或分枝。匍匐枝丝状,具稀疏的分枝。叶器于开花前凋萎或于花期宿存,基生呈莲座状和散生于匍匐枝上,狭倒卵状匙形,长5-10毫米,宽1-1.5毫米,顶端圆形,具1脉,无毛。捕虫囊少数散生于匍匐枝及侧生于叶器上,卵球形,长0.7-1.5毫米,侧扁,具柄;口顶生,边缘密生腺毛,上唇具1条龙骨状的喙,喙长0.3-1.5毫米,喙上面疏生而下面密生腺毛,下唇无附属物。花序直立,长5-44厘米,不分枝或具少数分枝,中部以上具1-15朵疏离或密集的花,无毛;花序梗丝状,粗0.3-1.2毫米,具1-12鳞片;苞片与鳞片同形,中部着生,狭长圆状披针形或倒披针形,顶端渐尖,基部渐尖,急尖或钝形,长2-3毫米;小苞片狭长圆状披针形或线状披针形,长1-2毫米;花梗于花期直立,于果期开展或反折,丝状,长0.2-1毫米。花萼2裂达基部,裂片不相等,密生细小的乳突,无毛;上唇卵状长圆形,长2-3毫米,顶端圆形,下唇较短,横椭圆形或圆形。花冠紫色、蓝色、粉红色或白色,喉部常有黄斑,长4-10毫米;上唇狭卵状长圆形,长于上方萼片,顶端圆形或截形,下唇较大,近圆形,顶端微凹,喉凸隆起;距狭圆锥状或近筒状,基部宽圆锥状,伸直或弯曲,通常长于下唇并与其平行或成钝角叉开。雄蕊无毛;花丝线状,近伸直,长约1毫米;药室汇合,具细小的乳突。雌蕊无毛;子房球形;花柱短;柱头下唇圆形,上唇极小,正三角形。燕果球形或长球形,长2-3毫米,果皮坚硬且不透明,室背开裂。种子多数,长球形或长圆状椭圆球形,长0.25-0.3毫米,无毛,散生明显的乳头状突起和稍突起的网纹,网格纵向延长。花期6月—次年春,果期7月—次年春。 Info from: http://www.chm.frim.gov.my/Newsletter/111-15-2012.aspx Utricularia caerulea was among the first seven widely distributed species of Utricularia described by Linnaeus in 1753. To date, this Old World species is known to occur from Madagascar to Japan to Australia. It is rather variable throughout its range, and therefore worldwide has more than 30 synonyms. It is almost always found growing together with other Utricularia species, sometimes with their stolons and leaves inseparably entwined and forming dense vegetative mats over the wet substrate. The leaves are narrowly obovate, and grow in a lax rosette at the base of the peduncle. The racemose inflorescence is rather slender and tall, with buds, flowers and fruits that are more or less crowded near the tips, which may twine a little in some individuals. The flower has a broadly ovate lower corolla lip with a conical spur parallel to it, topped with a small, oblong and erect upper lobe, and completed with two conspicuous yellow to orangey spots at the base of the lower corolla lobe marking the entrance to the spur. With some imagination, the flowers appear to resemble a hat-wearing, cartoon duck character! In Peninsular Malaysia, there are two flowering forms. The white form is always found near coastal or in lowland heath vegetation or other wet habitats with open, sunny conditions. Rapid development in the coastal lowlands in the Peninsula since the 1980s has affected many habitats of the white-flowering form. Although formerly recorded as common, it has now become rare and during recent surveys it was only found from one inland heath. In Peninsular Malaysia, the pink form is restricted to riverine open areas or heath vegetation in the hills. So far it is known from only two sites, Gunung Jerai, Kedah, and G. Ledang, Johor, but it was not relocated from the former on recent trips. Currently the species is given a ‘Vulnerable’ conservation status. | |
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1-10006a | |
2-10006b |