Abstract:The culture methods and plantlet regeneration from leaf,cotyledon explants and theanther culture of Sophora japonica L. were systematically studied and a large number ofplantlets were obtained. Some procedures of rapid propagation for diploid and haploidp

Abstract:The rhizom,s terminal bud section of tender rhizome with nodes of Pteridiumaquilinum var. latiusculum are used as explants and develops into green globular bodies(GGB),with continue to grow for 30 days to be cut either for subculture or to beinduced into

Abstract:臭氧层减薄引起紫外辐射的增强，紫露草三号用来监测辐射增加的潜在危害。在田间太阳光照下，把带有花序的紫露草枝条再给予8h不同UV-B剂量的照射，及用8μW／cm2的UV-B分别照射2、4、6和8h四种不同处理。处理后镜检花粉母细胞的微核发生情况。结果表明，UV-B照射处理花粉母细胞后其微核率显著增加。紫露草花粉母细胞的微核率可用作监测环境UV-B辐射增强的可靠指标。

Abstract:The leaves of Pertilla frutescens (L. ) bear two types of glandular hairs,capitate andpeltate glandular hairs, which originate from a single protodermal cell and developthrough two times periclinal and one--three times anticlinal cell divisions. The gland

Abstract:The floal nectary in Astragalus sinicus is located on the receptacle between the baseof ovary and the stamens. It consists of one layer of epidermal and 5--6 layers ofnectariferous cells. Several vascular bundles extend into the nectarifevous tissue. The

Abstract:With the aid of light microscope,the morphology,structure and development of thefloral nectaries in Salix babylonica Linn. were investigated and the relationship betweenthe structure and the secretion of nectar was discussed. The female flower has onenect

Abstract:Origanum vulgars has a disc nectary located on the disc at the base of the ovary.The nectary composed of epidermis and nectariferous tissus. The epidermal cell wasvacuolized and the stornata was present in there. After the ovary developed,the superficiall

Abstract:In this paper,the epidermal characteristics of 47 species from 18 genera ofAthyriaceae were comparatively sutdied,and the stomatal types of this family and other 15genera from 5 families were also comparatively observed. The results showed that thestomata

Abstract:In the present .Paper,the spores of 5 species belong to Gymnopteris Bernb. fromChina are examined under SEM. The morphological characteristics of each species aredescribed,and the relations of Gymnoperis with other ferns are discussed. It seems that the

Abstract:In the present paper,anatomic examinations are made on the leaf epidermis ofRoegneria C. Koch from Qinghai. With the viewpoint of combining external morphologyg,therationalities of the dividing genera and the coexisting in the tribe Triticeae of Roegneri

Abstract:With the help of photo--microscopy and histochemical methods,the external andinternal structure of leaves of 10 main sand--fixed plants in Mao us desert werecomparatively investigated. The results showed that 10 psammophytes form various type ofstructures

Abstract:The morphological and anatomical studies on ten species of different life form plantsin Helan Mountain was observed. In order to adapt dry and barren habitats,these plantsformed some special types of structures. The main characters of leaves are as follow

Abstract:Promeristem was composed of two layers of tunica cells and a group of corpus cells,with the development of promeristem, the primary meristem, including protoderm,procambium and ground meristem was formed at the apex of the shoot. The primarymeristem diffe

Abstract:The vegetative organs of Taxus chinensis are labeled by following seven characters:1. Resins canals are absence in roots, stems and leaves. 2. Some brown tanninscontenning cells are scattered among the cortex of the roots and the stems. 3. A fewscattered

Abstract:In flower--bud phase Xanthium sibiricum Patrin stem mainly consists of primarytissues. Vascular cambium has formed,but the secondary structure is far from developed.The epidermis of the stem consists of ordinary epidemis areas and stained areas. Thevascul

Abstract:Observations were made on the process of transition from procambium to camhiumin the shoots of Camptotheca acuminata Decne. Before intrenode elongation takes place,at the level of 0. 5 mm below the tip of the shoot apex,four or five vascular bundles andme

Abstract:The structure,distribution and development of the secretory ducts were studied inRhus potaninii. The secretory ducts are composed of fourteen to forty--one secretory cellsand a few lyers of sheath cells. The ducts occur mainly in the phloem of roots,stems

Abstract:The development of anther wall belongs to the basic type and the tapetum isglandular. The endothecium doesn--t develop fibrous thickenings and disappears as the middlelayers and the tapetum did, only sawtooth--shaped epidermis is kept when the antherbreak

Abstract:The analysis of the ultrastructure of the photosynthetic membrane of mesophyll cellof Cremanthodium discoideum and Aconitum tangutcum,which grew on the northeast ofQinghai--Tibet plateau,3700 m above sea level,shows that the chloroplast membraneappears ab

Abstract:Black Locust (Rohinia pseudoacacia L. ) is one of the main afforestation trees inaridand semi--ary regions of China. It has pinnate leaves and the pinna iselliptic. The ratiobetween the area of leaf surface and the leaf volume is 5. 6. There are crustose

Abstract:The inflorescence of Acer miaotaiense P. C. Tsoong is a kind of determinate type,which is composed of a terminal flower and 6-- 9 lateral branching axes and it is defindedas paniculate--cyme. An inflorescence contains 14-- 29 flowers and includes three ty

Abstract:This paper reports the structure, distribution and development of the secretoryducts of Rhus typhina. The secretory ducts of Rhus typhina are composed of one layer ofsecretory cells and one to five layers of sheath cells. The secretory ducts occur mainly

Abstract:The stem of Cistanche tubulosa (Schrenk) R. Wight. is similar tomonocotylous plantin the scattered bundles. Primary vascular bundles ouiginate from procambial strandswhich are scattered in ground meristem. In the process of differentiation of procambialst

Abstract:This paper details an investigation on the anatomical structure of Cancriniadiscoidea (ldb. ) Pob. Epidermal cell of stem and leaf contains larger in numberchloroplasts. There are five long cracks on the cross section of stem. The blade is structure ofiso

Abstract:The morphology, structure, occurance and ontogeny of floral nectaries of threespecies of nectariferous plants Cucurbitaceae and the changes of nectaries cells beforeand after the exudation were studies. The difference of female and male floral nectariesan

Abstract:By Anemone of morphology characteristic and ecological characteristic detailedstudy. Discove their stem and leaf is graceful,flower period is very long,reproduce andmanage is convenient. Decoration to flowerbed,roadside and glassland is good plant.

Abstract:This paper discussed intensively the study and utilization situation of naturaldrinking plant resources in Qinling -- Bashan Mountain area, listed the main ordinary andhealthy drinking plants,and pointed out some exsisting problem in developing andutiliza