Thalictrum daguanense (Ranunculaceae) is merged with T. omeiense, a species distributed in Sichuan and Yunnan, China Author Zeng, You-Pai 0000-0003-3259-8011 Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China & Center of Conservation Biology, Core Botanical Gardens, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China & University of Chinese Academy of Sciences, Beijing 100049, China & zengyoupai @ scbg. ac. cn; https: // orcid. org / 0000 - 0003 - 3259 - 8011 zengyoupai@scbg.ac.cn Author Yuan, Qiong 0000-0003-2613-5045 Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China & Center of Conservation Biology, Core Botanical Gardens, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China & yuanqiong @ scib. ac. cn; https: // orcid. org / 0000 - 0003 - 2613 - 5045 yuanqiong@scib.ac.cn Author Yang, Qin-Er 0000-0002-6261-0731 Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China & Center of Conservation Biology, Core Botanical Gardens, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China & qeyang @ scib. ac. cn; https: // orcid. org / 0000 - 0002 - 6261 - 0731 qeyang@scib.ac.cn text Phytotaxa 2022 2022-03-15 539 2 130 146 http://dx.doi.org/10.11646/phytotaxa.539.2.2 journal article 20227 10.11646/phytotaxa.539.2.2 f35fdfd0-0c7b-40cf-9e8b-105c41b5e0ec 1179-3163 6357975
TABLE 1. Morphological comparison of Thalictrum bouffordii, T. daguanese (= T. omeiense), T. omeiense, and T. ramosum.
T. bouffordiiT. daguanense (= T. omeiense)T. omeienseT. ramosum
Rootfibrousfibrousfibrousfibrous
Stem60‒100 cm tall, distally sparsely pubescent, not branched at base30–60 cm tall, glabrous, not branched at base20‒80 cm tall, glabrous, not branched at base12‒50 cm tall, glabrescent, usually branched at base
Leaf2–4-ternate; leaf blade 10‒25 cm long and broad; ovate, broadly ovate or rhombic, 1‒3 cm long, 0.8‒2.5 cm broad, 3-lobate2–4-ternate; leaf blade 6–20 cm long and broad; leaflets ovate, broadly ovate, elliptic or rhombic, 0.7–4 cm long, 0.5–3.5 cm broad, 3-lobate2‒4-ternate; leaf blade 6‒25 cm long and broad; leaflets ovate, broadly ovate, obovate, elliptic or rhombic, 0.6‒7 cm long, 0.5‒5 cm broad, 3-lobate2‒3-ternate; leaf blade 7‒15 cm long and broad; leaflets ovate, broadly ovate, obovate, cuneate-obovate or suborbicular, 0.3‒4 cm long, 0.5‒4 cm broad, 3-lobate
Inflorescencecorymbiform, many-flowered, with rachis sparsely pubescentcorymbiform, many-flowered, with rachis glabrouscorymbiform, many-flowered, with rachis glabrousloosely cymose, few-flowered, with rachis glabrescent
Pedicel0.8‒1.5 cm long, more or less sparsely pubescent0.8‒1.2 cm long, glabrous0.6‒1.5 cm long, glabrous5‒10 mm long, sparsely pubescent, later glabrescent
Flowerbisexual, erectbisexual, erectbisexual, erectbisexual, erect
Sepalcaducous, elliptic, ca. 4 mm long, ca. 2 mm broad, abaxially pubescent; nerves abaxially prominently raisedcaducous, elliptic or obovate, 3–4 mm long, 1.8‒2 mm broad, glabrous; nerves abaxially flatcaducous, elliptic or obovate, 2.5‒4 mm long, 1.8‒2.2 mm broad, glabrous; nerves abaxially flatcaducous, elliptic or broadly ovate, 2‒2.5 mm long, 1.6‒2 mm broad, glabrous; nerves abaxially flat
Stamenca. 60, 6‒7 mm long; narrowly oblanceolate, ca. 5.5 mm long; anthers oblong, ca. 1.5 mm long, apex obtuse28‒35, 5‒8 mm long; filaments narrowly oblanceolate, 4‒7 mm long; anthers oblong, 1‒1.5 mm long, apex obtuse25‒40, 5‒8 mm long; filaments narrowly oblanceolate, 4‒7 mm long; anthers oblong, 1‒1.5 mm long, apex obtuse16‒24, 3‒3.5 mm long; filaments narrowly clavate, 2.5‒3 mm long; anthers oblong, 0.7‒1 mm long, apex obtuse
Carpel6‒10, sessile, ca. 2 mm long; ovary lunate-fusiform, ca. 1 mm long, more or less sparsely pubescent; style ca. 1 mm long, recurved at apex; stigma conspicuous, linear, ca. 0.5 mm long7‒11, sessile, ca. 2 mm long; ovary lunate-fusiform, ca. 1 mm long, glabrous; style ca. 1 mm long, slightly recurved at apex; stigma conspicuous, linear, ca. 0.5 mm long6‒16, sessile, ca. 2 mm long; ovary lunate-fusiform, ca. 1 mm long, glabrous; style ca. 1 mm long, slightly recurved at apex; stigma conspicuous, linear, ca. 0.5 mm long6‒16, sessile, ca. 2 mm long; ovary narrowly lunate-fusiform, 1.5‒1.8 mm long, glabrous; style ca. 0.5 mm long, slightly recurved at apex; stigma inconspicuous
Achenesessile, ca. 3 mm long; body fusiform, profoundly ribbed, pubescent; style persistent, recurved at apexsessile, ca. 2 mm long; body fusiform, profoundly ribbed, glabrous; style persistent, recurved at apexsessile, ca. 2 mm long; body fusiform, profoundly ribbed, glabrous; style persistent, recurved at apexsessile, ca. 4.5 mm long; body narrowly lanceolate-fusiform, profoundly ribbed, glabrous; style persistent, slightly recurved at apex