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Papaveraceae (generalized) Papaveraceae sl, around the world 40 genera and 800 species of mostly herbaceous, mainly from the north temperate zone, China has 19 genera and 443 kinds are produced in the north and south, but the most concentrated to the southwest. More types of poppy, the department level and below the level of classification, different scholars have different opinions, especially Papaveraceae species within the genus Corydalis (Corydalis) Corydalis plant morphology varied, a reticulate evolutionary Obviously, there is a classification difficult genus. From the 1950s onwards, the micro-morphological characteristics of the seed has been widely used system of classification of angiosperms, seeds micro-morphological structure of the family, genus and species level has important value system of classification, therefore, poppy plants, from seed micro-morphological point of view systematic studies to determine the poppy plant genera and phylogenetic relationships within the genus and system location. According to Wu Zhengyi (1996, 1999) system, select the Papaveraceae (generalized) plant 17 genera and 113 species and one subspecies (Corydalis containing 29 to 81 species, 1 subspecies), scanning electron microscopy of seed micromorphological the observational studies, in order to provide new evidence for the Division. The main results are as follows: 1, many types of poppy seed morphology, including the (near) Square (near) circular, broadly ovate, (nearly) spherical, oval, kidney-shaped, obovate, triangular, wide chamfer oval. Seed morphology of the genus genus-specific, such as poppy is a kidney-shaped, sea poppy is a triangle, angle, fennel is as wide chamfer oval. Most of the poppy seed color is black and brown, mostly shiny. Each genus of poppy seed size difference. The largest Eomecon the case, Eomecon average size of 3.11 × 2.18mm, the smallest for the poppy, wild poppy average size of 0.69 × 0.38mm. The size of the other species within this range. Poppy seed surface ornamentation types, mainly reticulate, coarse-textured type, coral-like folds, fold negative reticulate, irregular protrusions - reticulate, and rectangular projection - reticulate, gill like protuberances - verrucous, stripes, thorn-like protuberances - reticulate, rod-like protrusions - reticulate, verrucous - reticulate, head-like protrusions, particles - textured, circular protrusion - cracks - textured, bubble-like protrusions type 16 types. Among them, Corydalis seed coat surface ornamentation eight types of spike-like projections - reticulate, rod-like protrusions - reticulate the verrucous - reticulate, head-like protrusions, particles - reticulate, round processes - cracks - textured various skin ornamentation type Corydalis unique type. Poppy 18 genera, only the thistle poppy genus in the thistle poppy, Meconopsis, Papaver poppy flower Ling grass genus and the genus Dactylicapnos seed micro-morphology is reported over, other genera of seed micro-morphology are first times reported. The same time, the seed coat ornamentation the coarse textured type, fold, textured and stripes type reported. The other types are reported for the first time. 3 the angle fennel is (Hypecoum) has a unique species of this genus skin type and unique ornamentation wide chamfer oval seed shape, this study support the angle the fennel is become independent Hypecoum Branch (Hypecoaceae), also from seed micro- morphological point of view confirmed the Hypecoum Division monophyletic. 4 of the sea Papaver (Glaucium), and DLF the genus (Dicranostigma) seed coat ornamentation type are coarse textured type are monophyletic taxa, seed coat micromorphological the ornamentation support sea Papaver and DLF genus belonging to the poppy Asia Branch (Papaveroideae). 5, Corydalis Section (Fumariaceae,), poppy (narrow) (Papaveraceae s.str.), Various types of poppies subfamily seed coat micro-morphological characteristics, seed coat micro-morphological characteristics support for multi-clade; and Hanabishi grass subfamily (Eschscholzioideae) include only coarse textured A ornamentation Type a monophyletic group. Microcharacteristics of Seed can provide valuable evidence is a case of the relationship between, on the genus level has a certain taxonomic significance, but also provide the basis for discrimination under the species and group planting, in the case of level of seed and seed to the taxonomic significance. 7, some species, such as Corydalis and yellow pansy kinds of different seed coat ornamentation type variation within species, which may be related to the geographical distribution of different.
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