石耳属一新种(子囊菌门)

本文描述了地衣型石耳属一新种,周鳞石耳.新种脐叶体上表面以周边皮层碎片上翘而形成的大量准鳞芽,类似于淡腹鳞石耳,但是,不同之处在于新种脐叶体下表面黑色,覆以大量同色而多分枝的假根以及具有不同的地理分布.从而呈现为地理替代现象.文中为新种提供了拉丁文特征提要、英文描述、图片与地理分布图以及新种及其相关种的检索表.     

Studies in the Eupatorieae (Compositae) VI

Cronquistia, a new genus in the Compositae Eupatorieae, is described on the basis ofStevia pringlei S. Watson.S. simulans B. L. Robinson is reduced to synonymy underS. pringlei.     

中国石蕊科地衣研究之三 中国新记录属:扇盘衣属

本文报道了主要分布于澳洲的扇盘衣属地衣,缝裂扇盘衣在中国的首次发现,从而为中国地衣区系增加了一个新记录属。文中报道的该属的地衣不仅在中国,即使在世界范围也十分珍异。因而,对于该属及种的特征从形态学、解剖学与化学方面给以简要描述。     

纺锤根锥花——中国唇形科锥花属一新记录种

报道了中国唇形科锥花属一新记录种———纺锤根锥花Gomphostemma mastersii Benth.ex Hook.f.,并提供了该种的形态描述和野外生态照片。纺锤根锥花是现知锥花属植物中唯一具有纺锤根的种类。     

A new species of <Emphasis Type="Italic">Brasiliomyces</Emphasis> (Erysiphaceae) on <Emphasis Type="Italic">Dalbergia cultrata</Emphasis> var. <Emphasis Type="Italic">cultrata</Emphasis> from Thailand

A powdery mildew fungus on leaves of Dalbergia cultrata var. cultrata (Fabaceae) collected at the Queen Sirikit Botanical Garden in northern Thailand is proven to be a new species of the genus Brasiliomyces and is described as B. chiangmaiensis sp. nov. with light and SEM micrographs. Differences in known Brasiliomyces species are discussed, and a key to species of this genus is provided.     

华南吊灯花属(夹竹桃科)植物小志

通过野外调查、标本查阅及文献考证,订正了华南吊灯花属(Ceropegia Linn.)植物,将狭瓣吊灯花(C. angustilimba Merr.)从吊灯花(C. trichantha Hemsl.)的异名中予以恢复,提供了二者的形态描述,确认华南地区记录的柳叶吊灯花(C. salicifolia H. Huber)实为剑叶吊灯花(C. dolichophylla Schltr.)的错误鉴定,并提供了后者的形态描述。     

A new species of Clausia (Copepoda, Poecilostomatoida, Clausiidae) associated with the polychaete Arenicola brasilliensis Nonata in Korea

A new species of the genus Clausia associated with the polychaete Arenicola brasilliensis Nonata is described from intertidal sands in Korea. The new species, as a primitive member of the genus, has a large, non-transformed body and fully segmented rami on legs 1–4. This is the second record of Clausiidae in the Far Eastern seas. The genus Doviella Rocha, originally placed in the Clausidiidae, is synonymized with the genus Clausia in the Clausiidae.     

Anatomy and cytology of Taphrina entomospora during infection of Nothofagus

Taphrina entomospora is one of the few species of the genus described on native plants of the Southern Hemisphere and also one of the few leaf pathogens known on Nothofagus species. The anatomical changes it produces on N. pumilio leaves, and its morphology, cytology, and sporogenesis were studied. The fungus is a perennial species that overwinters as mycelium in the foliar buds and infects the developing leaves, so the whole blade develops the disease symptoms. Interveinal areas of the leaves become chlorotic, thickened and rounded. Palisade parenchyma fails to develop, with spongy parenchyma developing as packed, rounded, isodiametric cells with little intercellular space. The mycelium is subcuticular, dikaryotic, and produces ascogenous hyphae, asci, and ascospores as described for other species in the genus. Before ascus discharge, ascospores bud in a regular, unique way. The life-cycle of T. entomospora is compared with other representative taxa in the genus and the distribution of this pathogen is discussed.