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Establishment of the distinct species status of Polygonum ciliinerve based on morphological and anatomical data A systematic study of Rosa sericea (Rosaceae) complex: Are R. omeiensis and R. sericea conspecific? Pollen morphology of Heliotropioideae in Boraginaceae from China and its systematic significance Floral morphogenesis of Caltha and Trollius (Ranunculaceae) and its systematic significance Comparative morphology of leaf epidermis in Parnassia (Parnassiaceae) from China Takakiopsida，a unique taxon of bryophytes Structural characters of leaf epidermis and their systematic significance in Vitaceae Pollen morphology of the genus Rubus from China Molecular systematic studies on the tribe Polygonateae (s. l.) in China based on RFLPs data of PCR-amplified chloroplast DNA fragments Correction of karyotype of diploid Beesia calthifolia and discovery of a tetraploid cytotype On Systematic Position of Pterygocalyx (Gentianaceae) Phylogenetic Relationship of Chinese Sagittaria Species (Alismataceae) Based on AP-PCR Analysis On Primary Subdivisions of the Magnoliophyt—Towards a New Scheme for an Eight-class System of Classification of the Angiosperms A Study on Systematic Relationships Between Elymus and Hordeum (Poaceae) A Study on the Synstematics of the Genus Lepisorus (Poiypodiaceae) Anatomy of Secondary Phloem of Glyptostrobus in Relation to Its Systematic Position The Seed Morphology in Hamamelidaceae and Its Systematic Evaluation PCR-RFLP Analysis of rbcL Gene in the Tribe Convallarieae The Karyotype of Beesia deltophylla and Its Systematic Significance On the Chromosomes of Calathodes (Ranunculaceae) and Its Systematic Position Embryological Studies in Polygonatum humile Fisch. ex Maxim Karyotypes of Disanthus and Mytilaria (Hamamelidaceae) The Classification and Distribution of Genus Deutzia in China A New Morphological Interpretation of the Female Reproductive Organs in Ginkgo biloba L., with a Phylogenetic Consideration on Gymnosperms Studies on the Karyotype and Systematic Position of Larix Mill. (Pinaceae) On the Genus Euchresta Benn. (Leguminosae) with “Wallace‘s Line” A Systematic and Evolutionary Study of Zizania L. (Gramineae) Pollen Morphology Systematics of the Genus Cyananthus Wall. ex Royle Pollen Morphology of the Genus Ligusticum from China and Its Systematic Significance Chemosystematic Studies on Thalictrum L. in China Identification of agricultural resource & environment determination of the principle grain production area in China Biosystematic Relationships and Generalized Morphological Characteristics of Two Representative Species from Littledalea(Poaceae) Biosystematic Relationships among Taxa below Leymus(Poaceae) from China Based on the External Morphology and Micromorphological Characteristics of Leaf Epidermis Systematic Positions of Pterospermeae (Sterculiaceae)on the Basis of DNA Sequence Data Cladistics of Heracleum in China Pollen morphology of the genus Peucedanum from Sichuan and its systematic significance Comparison on Starch Characters in Endosperm of Ginkgo biloba var. epiphylla Mak. and Its Systematic Significance Comparison on Starch Characters in Endosperm of Ginkgo biloba var. epiphylla Mak. and Its Systematic Significance Systematic Evolutional Relation of Chemical Components of the Essential Oils from 11 Taxa of Citrus Leaves Karyomorphology and relationships of Amentotaxus Pilg. SEM Observation on the Structure of Cuticles on Leaf Inner Surface of Abies (Pinaceae) and Its Significance in Systematics Development of Ovules and Embryo sacs in Ostrya virginiana (Betulaceae) and Its Systematic Significance Kingdonia, Embryology and Its Systematic Significance Pollen Morphology of Craigia with Reference to Its Systematic Position Study on the Systematic Exploitation of Regional Resources of Chinese Herbal Drugs High content screening analysisforsystematic studyon traditional Chinese medicine Thinking mode and practice of study on newly-developed drug of Chinese materia medica Drup and seed morphology of the Berchemia and Berche-miella(Rhamnaceae)and its systematic significance Leaf epidermal micromorphology of Hypode matium and its systematic significance A Review on the Research of Genulne Traditional Chinese Drugs PLANT BIOSYSTEMATICS:INTERNATIONAL DEVELOPMENTS AND OUR RESPONSE RESEARCHES ON THE FORMATIVE COURSES OF THE SPIKE COLLAR OF WHEAT IN SYSTEMATIC EVOLUTION AND INDIVIDUAL DEVELOPMENT BIOSYSTEMATIES OF TRIFOLIUM PRATENSE L.IN THE EAST MOUNTAINS IN HEILONGJIANG PROVINCE, CHINA Pollen Morphology of 13 Chinese Species of Polygonatum and Its Systematic Significations Fruit Features of Some Bupleurum Species (Apiaceae) and Their Systematical Implication An Optimized Algorithm Realization for Systematical Clustering Achene Wall Anatomy and Surface Sculpturing of Lactuca L. and Related Genera (Compositae: Lactuceae) with Notes on Their Systematic Significance Ultrastructure of Pollen Exine in Peucedaneae Drude with Reference to Its Systematic Significance An embryological study and systematic significance of the primitive gymnosperm Ginkgo biloba Internal valves in populations of Meridion circulare from the A’er Mountain region of northeastern China: Implications for taxonomy and systematics Biosystematic studies on Adenophora potaninii Korsh. complex (Campanulaceae) V. A taxonomic treatment Pollen morphology of Rhododendron subgen. Tsutsusi and its systematic implications A palynotaxonomic study of the genus Filipendula (Rosaceae) Systematic positions of Lamiophlomis and Paraphlomis (Lamiaceae) based on nuclear and chloroplast sequences Floral organogenesis of three species of Jatropha (Euphorbiaceae) Studies on the POD activities in pearleaf crabapple (Malus zumi) leaves damaged by plum spider mite (Tetranychus viennensis) Molecular Systematics of Partial Genera and Species in Tribe Lepidieae (Brassicaceae) from China Pollen Morphology of the Genus Angelica from Southwest China and Its Systematic Evdution Analysis Distribution of the cytoplasmic DNA in male cells of the Convolvulaceae and its systematic significance Pollen morphology of 15 species in nine genera of the Hydrocharitaceae Advances in the studies of lycophytes and monilophytes with reference to systematic arrangement of families distributed in China Leaf epidermal morphology of Zanthoxylum s.l. (Rutaceae) from China Embracing the pteridophyte classification of Ren-Chang Ching using a generic phylogeny of Chinese ferns and lycophytes The Anatomical Study of Plagiozamites oblongifolius and the Systematic Position of Plagiozamites Floral Organogenesis and Its Systematic Significance of the Genus Nandina(Berberidaceae) Analysis of the Maize 19 kD Zein Gene Promoter Fragment Driving Seed specific Expression The Phylogenetic Relationships of an Endemic Genus Sinadoxa in the Qinghai-Xizang Plateau:Evidence from ITS Sequence Analysis (in English) Characters of Leaf Epidermis and Their Systematic Significance in Menispermaceae Observations on Spore Morphology of the Chinese Liverworts Systematic invest igat ion of Angong Niuhuang Wan against pulmonary encephalopathy