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Gymnanthes Sw. (Euphorbiaceae), a genus new to China and its biogeographical implication Surface features of seeds in Thermopsis (Leguminosae) Two new species of the genus Dendranthema (DC.) Des Moul. from China Notes on Chinese Brachytheciaceae (Ⅰ) A New Species of Polystichum from Yunnan Pollen Morphology of Neottianthe (Orchidaceae) and Its Taxonomic Significance The Genus Neottianthe Schltr. (Orchidaceae) in China On Geographical Distribution of Achnatherum Beauv. (Gramineae) New Taxa of Diatom (Bacillariophyta) from Xizang (Tibet) (II) New Species of the Chinese Compositae New Taxa of Labiatae from China A Cytological Observation on Six Mosses of Northeast China Shaniodendron, a New Genus of Hamamelidaceae from China Pollen Morphology and Generic Phylogenetic Relationships in Ophiopogonoideae (Liliaceae) A New Species of Calanthe (Orchidaceae) from Xizang (Tibet) A Study on Pollen Morphology of Some Chinese Genera in Tribe Anthemideae Epidermal Features of Leaves and Their Taxonomic Significance in Subfamily Ophiopogonoideae (Liliaceae) Studies on Karyotype of Cephalanthera erecta and C. falcat A Numerical Study on the Floristics of the Zhoushan Archipelago Revision of Lactuca L. and Two New Genera of Tribe Lactuceae (Compositae) on the Mainland of Asia (Cont.) Contribution of the ear and the flag leaf to grain filling in durum wheat inferred from the carbon isotope signature: Genotypic and growing conditions effects Fine Mapping of RppP25, a Southern Rust Resistance Gene in Maize New Taxa of Orchidaceae from China (2) Chromosome Observations of Eight Species Endemic to China Pollen Morphology of Convallarieae (Liliaceae) and Systematic Position of Theropogon Maxim. Taxa Nova Orchidacearum Sinicarum A Study on the Anatomy of Vegetative Organs of the Gymnotheca Decne. (Saururaceae) in Relation to Its Systematic Position Studies on the Microstructure and Ultrastructure of Photosynthetic Apparatuses in Azolla Pollen Morphology of the Subtribe Hyoscyaminae (Solanaceae) On Kalopanax septemlobus (Thunb.) Koidz Pollen Morphology of the Subtribe Hyoscyaminae (Solanaceae) Karyotypes of Eleven Species of Triticeae in Northeast China Comparative Studies on Photosynthetic Fluorescence Spectra and Fluorescence Kinetics of Bryophytes Biosystematic studies of Kengyilia melanthera and K. kokonorica (Poaceae: Triticeae) Notes on some subtribes of the Orchidaceae The growth pattern of shoots in Whytockia (Gesneriaceae) with phylogenetic implications Two new species of Strobilanthes Bl. (Acanthaceae) from Guangxi, China A vertical gradient analysis of the flora of Dalaoling Mountain in the Three Gorges region, China Karyotype Variation and Evolution of Sect. Thea in Guizhou Peliosanthes pachystachya，a new species of the Liliaceae from Yunnan，China