武夷山自然保护区种子植物区系的初步研究

(一) 巍巍武夷山脉,群峰连绵,主峰黄岗山耸立于福建省西北部,为东南大陆的最高峰。山脉斜贯于闽赣边界线上,成为东海之滨的天然屏障。它阻挡着冬季冷气流向东南侵袭,而又阻留了春夏季风吹向内陆的湿气,形成了温暖湿润、云雾缭绕、雨量充沛的生态环境,从而发育着极为繁多的植物种群和颇为丰富的森林资源,是亚洲东南大陆植物区系成分的佼佼者。武夷山自然保护区位于武夷山脉北段,黄岗山及邻近地区,在北纬27°33′—54′,东经     

中国药用艾蒿类植物及古本草书艾蒿类植物的初步考订(一)

一、前言中国药用的艾蒿类植物包括菊科蒿属 Artemisia Linn.与绢蒿属 Seriphidium(Bess.)poljak.两属的药用种类。蒿属全世界有380余种,广布于北半球,亚洲最多,欧洲、北美洲次之,其中以温带、寒温带及亚热带高山地区最多,亚热带平原地区次之,少数种分布到亚洲、北美洲的亚热带南部或热带高山地区以及非洲北部、东部或南部地区;我国有185种、44变种,遍及全国,东北、华北、西北及西南高山地区最多,其他省区次之,沿海地区最少。已知国产入药的种娄有61种11变种(品种),约为全国蒿属种类的32.97%绢蒿属全世界约100余种,主产亚洲中部与北美洲中部的温带草原或高山草原与荒漠地区,苏联哈萨克斯坦最多,我国西北地区次之,少数种分布到欧洲及地中海地区;我国有31种、     

武夷山自然保护区维管束植物名录

<正> 本文是根据1945——1948年、1952——1956年、1961——1964年以及1979——1980年调查采集的资料整理而成的,共记载维管束植物191科,780属,1815种,39亚种及变种,其中蕨类植物39科,85属,269种及6变种;裸子植物7科,16属,19种;被子植物145科,679属,1527种及33亚种或变种。至于前人报道的武夷山植物,由于文献不全,一般不予列入。关于分类系统的编排,蕨类植物按秦仁昌系统,裸子植物按郑万钧系统,被子植物按恩格勒—狭罗斯系统。     

椰风蕉雨总关情——棕榈趣谈

棕榈科植物是世界上最重要的园林观赏植物和经济树种之一,其树形优美独特、婀娜多姿,具有浓郁的热带韵味。一提到棕榈人们就会想起清沏碧蓝的海水、明媚的阳光、金黄的沙滩、净洁清新的空气,海天一色、椰子、海枣成群的海滨美景,人们常用“椰风蕉雨”来形容南国风情,足见棕榈科植物在热带风光中举足轻重的重要地位。古老的家族成员根据古植物学研究记载,棕榈科古植物大化石及化石孢粉最早见于距今7000万年前的白垩纪,当被子植物出现于地球上不久就有了棕裥科植物,棕榈科的祖先与被称之为“活化石”的苏铁类的祖先     

论西藏蒿属植物区系

<正> In Xizang there are 57 species and 6 varieties under the genus Artemisia Linn, which can be divided into 2 subgenera and 6 sections (see P. 82-85).Sect. Absinthium of the genus Artemisia is possibly the most primitive, because the heads are bigger and the flowers on a head are numerous, over 40-100- The inner most flowers of the disk are sterile, the corolla of the outer flower (margine) is similar to the inner ones with 4 (not 2) corolla-teeth. Sometimes there are sterile androecia in the outer flowers. The receptacle is covered with hairs which are developed from the scales in the species of Tribus Heliantheae. Sect. Abrotanum arising from Sect. Absinthium is the intermediate with glabrous receptacle, and the advanced Sect. Artemisia may have arisen from Abrotanum. In this Sect, heads are small and flowers on each head are not very many (< 20). In South-West China (a plant refuge in the Age of Ice of the Quaternary), Sect. Viscidipubes Y. R. Ling may have arisen from Sect. Artemisia or Sect. Abrotanum, and has all the stems, branches, leaves and bracts of the heads clothed with glandular-hairs. With the exception of Subgenus Dracunculus arising from Subgenus Artemisia, Sect. Latilobus Y. R. Ling posseses broader leaf lobes and often occurs in the forest, while Sect. Dracunculus produces narrower leaf lobes and often occurs in the steppe or desert-steppe.Sect. Artemisia in Xizang migrated from the original centre of the genus, which occured possibly in the mountain regions of N. Asia by the middle of Tertiary Period and at the beginning of Quaternary Period. They migrated across C. Asia (East)-Mongolia (West), or through the Sichuan-Yunnan plateau secondary original centre into Xizang and even gave rise to many endemic species of Xizang (for the development system of Artemisia see Fig. 1).The floristical elements of Artemisia in Xizang are so diverse that they are to be summarized as follows: (table l)1. Holartic (subholartic) subkingdom.(1) Tertiary ancient endemic species.2 . Eurasia steppe or semidesert-steppe subkingdom.