中国红豆属的研究(续)

The first classification for the genus Ormosia was proposed by Bentham. It was followed by Taubert (1892) in Engler and Prantl’s Nat. Pflanzenf., who divided the genus into 2 sections.  On the basis of the pod structure and seed characters Prain (1900) arran- ged the genus in 2 sections with 4 subsections.  In the monograph on the genus Merrill and L. Chen ( 1943 ) limited their taxonomic study to Chinese and Indo-Chinese species, and recognized 34 species and 15 series.  Recently Yakovlev (1971-1976) has treated the ge- nus in 6 separate genera.      In the present paper the author recognizes 35 species, of which 7 species and 2 varie- ties are new.  The Chinese species of the genus are grouped into 3 sections and 6 series inmy classification.     

中国水锦树属的初步研究(续)

This paper presenta a brief introduction to the taxonomy and geographic distribu- tion of the genus Wendlandia.       The genus Wendlandia in tribe Rondeletieae of the family Rubiaceae was proposed by Bartling in 1830. There are now more than ninety species throughout the world. It is distributed mainly in tropical and subtropical Asia. Thirty species, ten subspecies and three varieties are recorded in the paper. Among these, nine species, two subspecies and one variety are new. They are distributed mainly in Yunnan, Guizhou, Guangxi, Guangdong, Xizang and Taiwan Provinces. Only one species, namely W. longidens (Hance) Hutch. Extends northward to Hubei and Sichuan.       The classification of the genus in this paper is based on Cowan's system. It is divided into four series mainly by their stigmatic and staminal characters, namely Euexsertae, Subinclusae, Montigenae and Clavigerae. The first two series are each subdivided according to the stipule feature into two subseries, designated as Cuspidatae, Orbiculares, Tinctoriae and Paniculatae.       From the distribution patterns of the genus in the flora of China, we may understand:       1.  The genus has the most species in China, where is its distribution centre, and Yurnan is the province richest in species of the genus.       2.  There are twenty-one species, five subspecies and three varieties endemic to China. Most of these endemics have their distributional area confined to a single province, and some of them are confined to an even narrower district, with only a few of them extending beyond province boundaries.       3.  The series Subinclusae Cowan has the most species not only in China but also in other regions of the world, whereas the series Montigenae Cowan has fewer species and they are all restricted to China.       The new species, new subspecies and the new varieties described in this paper are as follows: W. brevipaniculata W. C. Chen, W..villosa W. C. Chen, W. tinctoria  (Roxb.) DC. subsp. affinis How, W. laxa S. K. Wu, W. uvariifolia Hance subsp. pilosa W. C. Chen, W. guangdongensis W. C. Chen, W. parviflora W. C. Chen, W. scabra Kurz var. pilitera How, W. pubigera W. C. Chen, W. jingdongensis W. C. Chen, W. brevituba Chun et Howand W. oligantha W. C. Chen.     

安徽金腰属 (虎耳草科)植物新资料

 楔叶金腰为金腰属一新变种,同时报道安徽新记录种肾萼金腰,并对安徽金腰属植物进行了补充记述。     

半蒴苣苔属的研究(续)

The genus Hemiboea is a curious genus of the tribe Didymocarpeae (Cyrtandroi- deae), characterized by its peculiar pistil with one fertile carpel and its follicle-like capsule. This genus has not yet been thoroughly studied since its establishment by C. B. Clarke in 1888.  In the present paper, the taxonomic history is briefly reviewed; the external morphology, leaf his- tology, pollen morphology and geographical distribution are discussed; a key to the 21 species recognized by the author is provided; and the economic uses reported in various publications are summarized.       I.  Morphology       (1)  Sclereids  The foliar sclereids, occurring in this genus and defined by their forms, fall into two types.       (A) Vermiform selereids  This type of sclereids is noted in 15 species and may be clas- sified into two groups according to their positions in leaf tissues.  Those of the first group are interspersed in the ground tissue around the vascular bundles of leaves and noted in 12 species, i.e.H. longisepala, H. cavaleriei, H. bicornuta, H. fangii, H. omeiensis, H. gracilis, H. glandulosa, H. mollifolia, H. pingbianensis, H. parviflora, H. strigosa and H. gamosepala, and those of the second group are dispersed in the mesophyll, occurring in H. subcapitata, H. henryi and H. latisepala.       (B) Astrosclereids The sclereids of this type are discovered for the first time in Hemiboea, dispersed in the mesophyll of a single species, i.e.H. lungzhouensis.      No foliar sclereids are found in the remaining 5 species, i.e.H. integra, H. flaccida, H. longgangensis, H. subacaulis and H. follicularis.      The differences in forms and positions of the foliar sclereids and their absence or pre- sence are of great help in understanding the relationship between the infrageneric taxa.    (2)  Pollen grains  The pollen grains of 19 species were examined with LM and SEM. They are 3-colporate, subglobose or prolate, 20-38.8×22-28μm.  The exine  is  1.3-2μm thick and the sculpture is foveolate (e.g.H. cavaleriei) to reticulate (e.g.H. omeiensis).  In Sect. Subcapitatae the pollen grains are subglobose or prolate, while those of Sect. Hemiboea are prolate.       No pollen grains are observed in anthers of 13 speciemens of H. subacaulis var. subacaulis and var. jiangxiensis.        (3)  Seed-coat Under SEM the seed-coat exhibits considerable diversity in the genus, fur- nishing useful characters for explaining the relationship between the two sections.       2.  Geographical distribution  The genus Hemiboea ranges from the eastern border of the Xizang Plateau and Yunnan Plateau eastwards to Ryu Kyu Islands, and from the southern slope of the Qinling Range southwards to northern Vietnam.  The karst region of S. E. Yun- nan and W. Guangxi is the centre of maximum variation of the genus and is probably its origin centre, where the most primitive taxon exists, and where more species (13 species, i.e. 61.9 per cent of the sum total) and more endemic species (8 species) are found than elsewhere.       3.  Classification  The genus consists of 21 species and 6 varieties which are classified into 2 sections.  The Clarke's classification is accepted, but emended here as follows:       Sect. 1. Subcapitatae Clarke Sepals free or posterior ones connate.  Muri of the seed-coat laevigate or rugose; bottom of meshes flat, smooth or with few verrucae.  Pollen grains subglo- bose or prolate.       Sect. 2. Hemiboea Sepals connate.  Muri of the seed-coat tuberculate or aliform-tuberculate; bottom of meshes flat or concave, with dense verrucae.   Pollen grains prolate.       Based on the analysis of external and internal morphological characters, the main evolu- tionary trends in the genus are discussed and enumerated, and a hypothesis indicating the re- lationships between the two sections is given.     

中国点地梅属的修订(续)

A revision of the Chinese species of Androsace updates our knowledge of the genus by providing a brief historical survey, character analysis, discussion on gene- ric relationships and geographical distribution, and a key to species currently recogni- zed. For the sake of completeness, the key is supplemented by an enumeration, and a record of the known distribution of each species.  Furthermore, some specimen citations and additional notes on species previously very incompletly known are also included. Seven new species and two infraspecific taxa are described.     

国产木蓝属的系统研究

本文叙述了木蓝属系统研究的简史，对该属形态特征的演化趋势及属下分类进行系统   研究，根据植物习性、叶的特征、果实形态及含种子数，将国产木蓝属80种，1变种归纳为3亚   属，并将木蓝亚属分为14亚组，其中包括9个新亚组，对其中一些种类作了归并及处理，并编    写了分种检索表。     

中国山矾科的初步研究(续)

This paper is a preliminary study on the morphology, taxonomy and geog- raphy of Symplocaceae, following the system of H. P. Nooteboom and H. Handel-Maz- zetti et E. Peter-Stibal, who divided the genus into two subgenera according to the floral characteristics.  But I disagree with Nooteboom's unduly broad specific concept, and adopt Handel-Mazzetti et Peter-Stibal's concept, which usually treated the species of this family according to their habitats in regions in a relatively narrow sense.  The ge- nus is divided in the present paper into two subgenera, six sections, among which two are new.  Nine new species and three new varieties are described in this paper.  Discus- sions on some taxa are also presented.      The family Symplocaceae consists of 300 species in the whole world.  They are dis- tributed mainly in tropical and subtropical Asia, Oceania and America.  In China there are about 77 species widely distributed in the  south-western and south-eastern parts, with only one species, namely Symplocos paniculata (Thunb.) Miq. extending northward to north-eastern part.     

我国沙拐枣属的分类与分布

我国沙拐枣属共24种，占本属的2／3。亚洲中部是该属的起源地。我国是该属分布区的最东端，它主要分布在新疆和甘肃等省(区)。     

中国远志属植物的分类研究

本文通过对国产远志属的分类系统和外部形态(特别是花部、种子和种阜的形态)及花粉粒形态   的研究，结合地理分布，首次确认国产远志为3亚属、4组(其中2新组)，41种8变种。