辽宁水云科一新属

粗轴藻属 新属 Rotiramulus R. X. Luan Gen. nov. Haec genus affine Giffordiae Batters et Sorocarpo Pringsh., sed caudice conspicuecrasso, moniliformi-dispositis, ramulis brevibus densis, verticillatis interruptis ad nodulos     

中国褐茸藻属二新种

1.浙江褐茸藻 新种 图1 Giffordia zhejiangensis S. B. Wang, sp. nov. Species affinis G. laminaria (Noda) S. B. Wang et R. X. luan, sed frondibus majoribus,0. 5—1 cm altis; in frondibus scytosiphonis lomentaru parasiticis; sporangiis plurilocularibus     

中国秋海棠属新植物

1 黄连山秋海棠 新种 图1 Begonia coptidi-montana C. Y. Wu, sp. nov. (Sect. Alaecida C. B. Clarke) Species B. taiwanianae Hayata arctissime affinis, sed foliis minoribus remote levis-simeque denticulatis, capsularum alis variabilibus differt. Herba perennis. Rhizoma breve, crassum, atro-rubrum. Caulis 0. 7—1. 2 m altus, ro-bustus, atro-ruber, longitudinaliter angulatus, glaber. Folia alterna vel 2 ad ramum brevem     

中国羽枝藻属新资料

1.山西羽枝藻 新种 图1:1—4 Cloniophora shanxiensis Y. J. Ling et S. L. Xie, sp. nov. Species affnis C. spicatae (Schmid.) Islam, sed primariis ramulis irregularibus alternatisvel oppositis, pyrenoidibus solitariis, ramuli cellulis apprime irregularibus differt. Thallo caespitoso, usque ad 5 cm longo; rhizoideis e filamenti cellulis basalibus angustis     

茨藻科、角果藻科植物花粉形态的研究

在水生植物茨藻目中,茨藻科Najadaceae和角果藻科Zannichelliaceae植物由于其结构、尤其是花部结构的极度简化和趋同适应,系统关系仍不清楚。本文应用光学显微镜、扫描电镜和透射电镜对上述2科4属的10种代表植物的花粉形态进行了观察,系统描述了各属、种的花粉形态。结果表明角果藻科植物花粉均无萌发孔,外壁纹饰通常为拟网状至浅网状。花粉形态的研究结果支持将Vleisia作为角果藻属Zannichellia的近缘属处理的观点。茨藻科植物花粉外壁光滑、稍皱波状或为疣状,具颗粒状纹饰,萌发孔的有无在种间存在变异。花粉形态的研究结果表明角果藻科与眼子菜科Potamogetonaceae近缘,茨藻科可能与水蕹科Aponogetonaceae或水鳖科Hydrocharitaceae中具单沟花粉的类群有一定联系,而与角果藻科和眼子菜科则相去甚远。     

New Materiales for Chinese Ectocarpaceae (Phaeophyta)

In this paper, one new species and two new combinations of Ectocarpaceae from China are reported. They are Ectocarpus dicystus sp. nov., Feldmannia rallsiae (Vickers) comb. nov., Giffordia laminariae (Noda)comb. nov.     

中国植物新资料

此变种与原变种(var.obtusata)的主要区别为叶长圆状卵形(非宽卵形),花柱较短,长1.8-2毫米(非4-5毫米)。     

中国竹类植物新资料

<正> 壮绿竹(牛角竹) 新组合 Bambusa valida(Q H Dai)W.T.Lin,comb.nov.—Dendrocalamopsis ualidus Q.H.Dai,Act.Phytotax.Sin.24:393—394.f.1.1986. 根据采自广州华南农业大学,林万涛31864(引自模式产区——广西,南宁,广西林科所)标本。该种植物体是有刺的,而绿竹属是无刺的,故作新组合。     

中国葫芦科资料

本新种接近香瓜Cucumis melo L.,不同之处在于本种花两性,单生或双生;果实较小,长约3-3.5厘米,径2-3厘米。     

中国十字花科新资料

作者在编写中国植物志十字花科的庭荠族Alysseae、大蒜荠族Sisym-brieae的过程中,对国内主要标本室该族标本进行了研究。本文报导其中的一些新资料,其中包括2个新组,6个新种,6个新变种,2个新变型。     

GIFFORDIA ONSLOWENSIS SP. NOV. (PHAEOPHYCEAE) FROM THE NORTH CAROLINA CONTINENTAL SHELF AND THE RELATIONSHIP BETWEEN GIFFORDIA AND ACINETOSPORA1

Giffordia onslowensis sp. nov. is described from the North Carolina continental shelf. This alga is distinct in having upper filaments which are profusely branched, with branches borne at the tops of cells at narrow angles, and lower filaments which are sparsely branched, with branches borne at the middle of cells at wide angles. It is somewhat intermediate between Acinetospora and Giffordia because of the morphology of the lower branches. Morphological variability of Giffordia in culture is numerically documented and similarities between Giffordia spp. and Acinetospora in culture are interpreted as artifacts of altered or incomplete development. It is concluded that Acinetospora, Giffordia, and Ectocarpus should be retained as separate genera.     

Contribution to the taxonomy of the Ectocarpales (Phaeophyceae) from the coast of Karachi, Pakistan

BEGUM, M. & KHATOON, N., 1992. Contribution to the taxonomy of the Ectocarpales (Phaeophyceae) from the coast of Karachi (Pakistan). The taxomony and ecology of five species belonging to the order Ectocarpales, representing three genera– Ectocarpus with one species, Hincksia with three species and Nemacystus with one species–are studied and reported as new records for the coast of Karachi, Pakistan.