品藻Lemna trisulca Linn.
品藻Lemna trisulca Linn.
1．品藻（事物绀珠）图版42：2
Lemna trisulca L., Sp. Pl. : 970. 1753; Hook. f. , Fl. Brit. Ind. 6: 557. 1893; O. и. кyэeнeвa вB. к. IIIиIIIкиH. ФЛ. CCCP 3: 491. 1935; Hand. -Mazt. , Symb. Sin. 7: 1368. 1936; Gagn. in Lecte. , Fl. Gen. Indo-Chine 6: 1198. 1942; 裴鉴、单人骅, 华东水生维管束植物: 33, 图40 A, 1952; Ohwi, Fl, Jap. 261. 1956; 刘慎谔等, 东北植物检索表: 558, 图版210; 图4, 1959; 秦岭植物志1 (1) : 289, 图259.1976; Backer, Fl. Jav. 3: 127. 1968.
水生植物，悬浮于水面附近，常聚成堆团或层片。叶状体薄，膜质或纸质，二面暗绿色，有时带紫色，多少透明，椭圆形、长圆形、披针形或倒披针形，先端钝圆，全缘或有时具不规则的细齿，向基部渐狭，具长5-10毫米的细柄，借以与母体相连经数代不脱落，脉3条，背面生1细根，根端尖，常连根脱落，幼叶状体于母体基部两侧的囊中萌发，浮出后与母体构成品字形。果实卵形，种子具突起脉纹。
产南北各省区，已采到标本的省区有：新疆（塔城）、内蒙古、黑龙江（伊春）、陕西、山西、河北、安徽、江苏、云南（丽江、大理）、台湾（台东），生于静水池沼或浅水中。南北半球的温带、北温带地区较常见。
《Flora of China》 Vol. 23 (2010)
Lemna trisulca Linnaeus Sp. Pl. 2: 970. 1753.
品藻 pin zao
Fronds (except when flowering or fruiting) submersed, 3-50 coherent in one group and often forming branched chains, attenuate at base into green connecting stalk 2-20 mm, green and subhyaline, sometimes purplish, narrowly ovate to elliptic, 3-15 mm (without stalk), 2-3.5 × as long as wide, flat, without papillae on upper surface, margin denticulate distally; veins 3, rarely 1, central vein approximating apex, lateral veins ca. 1/2 of frond length. Root 0.5-2.5 cm, often lacking, sheath not winged, apex mostly pointed. Turions absent. Flowering and fruiting fronds free floating on water surface, 1-5 coherent, 3-5 mm. Ovary with 1 ovule; utricular scale with narrow opening at apex. Fruit laterally winged toward apex. Seed with 12-18 distinct ribs. Fl. (rare) May-Sep. 2n = 20, 40, 42, 60, 63, 80.
Lakesides, spring pools, ponds; in regions with cool temperate climate; sea level to 3000 m. Anhui, Hebei, Heilongjiang, Hubei, Jiangsu, Nei Mongol, Shaanxi, Shanxi, Sichuan, Taiwan, Xinjiang, Yunnan, Zhejiang [worldwide except South America].
别名：star duckweed;品凛;海藻;高布存－拉布萨嘎;三叉浮萍;三角萍;三叉萍;品字藻;品字萍;品萍;
科名：浮萍科 Lemnaceae
属名：浮萍属 Lemna
1．品藻（事物绀珠）图版42：2
Lemna trisulca L., Sp. Pl. : 970. 1753; Hook. f. , Fl. Brit. Ind. 6: 557. 1893; O. и. кyэeнeвa вB. к. IIIиIIIкиH. ФЛ. CCCP 3: 491. 1935; Hand. -Mazt. , Symb. Sin. 7: 1368. 1936; Gagn. in Lecte. , Fl. Gen. Indo-Chine 6: 1198. 1942; 裴鉴、单人骅, 华东水生维管束植物: 33, 图40 A, 1952; Ohwi, Fl, Jap. 261. 1956; 刘慎谔等, 东北植物检索表: 558, 图版210; 图4, 1959; 秦岭植物志1 (1) : 289, 图259.1976; Backer, Fl. Jav. 3: 127. 1968.
水生植物，悬浮于水面附近，常聚成堆团或层片。叶状体薄，膜质或纸质，二面暗绿色，有时带紫色，多少透明，椭圆形、长圆形、披针形或倒披针形，先端钝圆，全缘或有时具不规则的细齿，向基部渐狭，具长5-10毫米的细柄，借以与母体相连经数代不脱落，脉3条，背面生1细根，根端尖，常连根脱落，幼叶状体于母体基部两侧的囊中萌发，浮出后与母体构成品字形。果实卵形，种子具突起脉纹。
产南北各省区，已采到标本的省区有：新疆（塔城）、内蒙古、黑龙江（伊春）、陕西、山西、河北、安徽、江苏、云南（丽江、大理）、台湾（台东），生于静水池沼或浅水中。南北半球的温带、北温带地区较常见。
《Flora of China》 Vol. 23 (2010)
Lemna trisulca Linnaeus Sp. Pl. 2: 970. 1753.
品藻 pin zao
Fronds (except when flowering or fruiting) submersed, 3-50 coherent in one group and often forming branched chains, attenuate at base into green connecting stalk 2-20 mm, green and subhyaline, sometimes purplish, narrowly ovate to elliptic, 3-15 mm (without stalk), 2-3.5 × as long as wide, flat, without papillae on upper surface, margin denticulate distally; veins 3, rarely 1, central vein approximating apex, lateral veins ca. 1/2 of frond length. Root 0.5-2.5 cm, often lacking, sheath not winged, apex mostly pointed. Turions absent. Flowering and fruiting fronds free floating on water surface, 1-5 coherent, 3-5 mm. Ovary with 1 ovule; utricular scale with narrow opening at apex. Fruit laterally winged toward apex. Seed with 12-18 distinct ribs. Fl. (rare) May-Sep. 2n = 20, 40, 42, 60, 63, 80.
Lakesides, spring pools, ponds; in regions with cool temperate climate; sea level to 3000 m. Anhui, Hebei, Heilongjiang, Hubei, Jiangsu, Nei Mongol, Shaanxi, Shanxi, Sichuan, Taiwan, Xinjiang, Yunnan, Zhejiang [worldwide except South America].