共查询到18条相似文献,搜索用时 218 毫秒
1.
中国的红索藻属植物 总被引:2,自引:0,他引:2
记述了中国产红索藻属Thtorea Bory emend.Necchi的2种2变种,即棘刺红索藻T.hispida(Thorea)Desvaux emend,Sheath,Vis et Cole,棘刺红索藻小孢变种T.hispida var,microspora S.L.Xie et Z.X.Shi,蓝色红索藻T.vio—lacea Bory emend.Sheath,Vis et Cole和蓝色红索藻长毛变种T.violacea var.longipilosa S.L.Xie et Z.X.Shi.其中,蓝色红索藻T.violacea Bor yemend.Sheath,Vis et Cole为中国新记录,棘刺红索藻小孢变种T.hispida var.microspora S.L.Xie et Z.X.Shi和蓝色红索藻长毛变种T.violacea var,longipilosa S.L Xie et Z.X.Shi为新变种。 相似文献
2.
山西省的淡水红藻 总被引:1,自引:0,他引:1
报道山西省的淡水红藻植物,共计有15种,隶属于6目,7科,9属,即紫球藻Porphyridium purpureum (Bory) Drew et Ross,暗紫红毛菜Bangia atropurpurea (Roth) Agardh,细弱弯枝藻Compsopogon tenellus Ling et Xie,弯枝藻C.coeruleus (Balbis ex C.Agardh)Momagne,灌木状拟弯枝藻Copsopogonopsis fruticosa (Jao) Seto,异孢奥杜藻Audouinella heterospora Xie et Ling,硬枝奥杜藻A.chalybea (Roth) Bory,矮小奥杜藻A.pygmaea (Ktitzing) Weber-van Bosse,棘刺红索藻Thorea hispida (Thore) Desvaux,鸭形串珠藻Batrachospermum anatinum Sirodot,胶串珠藻B.gelatinosum (Linnaeus) De Candolle,弧形串珠藻B.arcuatum Kylin,绞扭串珠藻B.intortum Jao,细连珠藻Sirodotia tenuissima (Collins) Skuja ex Flint和胭脂藻Hildenbrandia rivularis (Leibmann)Agardh. 相似文献
3.
4.
5.
中国鱼子菜科植物的分类 总被引:1,自引:0,他引:1
记述了中国产鱼子菜科(Lemaneaceae)的2属6个种,即鱼子菜属(Lemanea Bory)的中华鱼子菜(L. sinensiaJao)、 粗壮鱼子菜(L. crassa S. L. Xie et Z. X. Shi)、 分枝鱼子菜(L. ramosa S. L. Xie et Z. X. Shi)、 单鱼子菜(L.simplex Jao)和拟鱼子菜属(Paralemanea (Silva) Vis et Sheath)的链状拟鱼子菜(P. catenata (Ktzing) Vis et Sheath)、 小型拟鱼子菜(P. parvula (Sirodot) S. L. Xie et Z. X. Shi)。其中,拟鱼子菜属为中国新记录属,粗壮鱼子菜和分枝鱼子菜为新种,链状拟鱼子菜和小型拟鱼子菜为中国新记录种。 相似文献
6.
7.
本文对来自青海省异极藻属和桥弯藻属(硅藻门)的三个新变种进行描述,它们是:橄榄异极藻短纹变种(Gomphonema olivaceum (Lyngbye) Kuetzing var. brevistriatum Li Y. L. et Shi, var. nov.);十字异极藻矩形变种(Gomphonema staurophorum (Pant.) Cleve-Euler var oblongum Li Y. L. et Shi, var. nov)和亚贝桥弯藻具点变种(Cymbella yabe Skvortzow var. punctata Li Y. L. et Shi, var. nov).
相似文献
8.
中国栅藻属新分类群与新记录 总被引:2,自引:0,他引:2
本文报道在安徽发现的栅藻属Scenedesmus的4个新种,2个新变种及4个中国新记录。 4个新种是安徽栅藻S.anhuiensis, 黄山栅藻S.huangshanensis四翼栅藻S. qua-drialatus和芜湖栅藻S.wuhuensis, 2个新变种是角柱栅藻具刺变种S.prismaticus var.spinosus和史密斯栅藻微刺变种S. smithii var.spinulosus;四个中国新记录是具齿栅藻南方变种S. denticulatus var.australis Playfair,角柱栅藻S. prismaticus Bruhl et Biswas,四棘栅藻具齿变种S·quadricauda var.dentatus Deduss和史密斯栅藻S. smithii Teiling。 相似文献
9.
楔桥弯藻属(Gomphocymbella)是由Mueller在1905年建立的,它兼有桥弯藻属和异极藻属的双重特性。虽然对它的系统发育及分类问题仍在讨论之中,但一般把它归于异极藻科中。它较为罕见,至今报道的种类仅有10个左右。在我国至今只报道有一个种。近几年来,对湖北省硅藻类中的异极藻科(Gomphomenaceae)进行了分类学研究,发现有3个楔桥弯藻属的种类,其中2个为新种类:疏纹楔桥弯藻(Gomphocymbella laxistria Shi et N.Li)和不对称楔桥弯藻(G.asymmetrica Shi et N.Li);另一个种为我国首次报道的新记录:波润楔桥弯藻(G.brunii(Fricke)O.Mailer)。 相似文献
10.
在孟氏藻属(Mougeotia)中的一些种类,它们是完全以静孢子营生殖的。以往的藻类学家对于此种孢子的形成过程有不同的意见:如Hassall(1845)、Wittrock(1878)、W.及G.S.West.(1902)和Czurda(1931,)等氏认为此种孢子在形成过程中, 相似文献
11.
Multivariate morphometrics and image analysis were used to determine the number of well-delineated infrageneric taxa of Sirodotia in North America. Three groupings were distinguished from 25 populations examined from Newfoundland and Quebec in the north to central Mexico in the south. These groupings were statistically related to 10 type specimens, and the following species were recognized: Sirodotia huillensis (Welwitsch ex W. et G. S. West) Skuja (syn. S. ateleia Skuja), S. suecica Kylin (syn. S. acuminata Skuja ex Flint and S. fennica Skuja), and S. tenuissima (Collins) Skuja ex Flint. These species are differentiated on the basis of whorl shape and degree of separation at maturity (S. suecica, rounded and appressed; S. huillensis and S. tenuissima, truncated apex and separated), the density of spermatangia (S. huillensis, dense clusters; S. suecica and S. tenuissima, sparsely aggregated), and the mode of germination of the gonimoblast initial (S. suecica and S. tenuissima, from the nonprotuberant side of the fertilized carpogonium; S. huillensis from the protuberant side). Sirodotia huillensis was found only in the desert-chaparral, whereas S. suecica and S. tenuissima occurred from south-temperate to boreal regions in cool (temperature 8–18° C), low ion (specific conductance 10–99 μS · cm?1), and mildly acidic to neutral (pH 5.7–7.3) waters. 相似文献
12.
Curt M. Pueschel 《Journal of phycology》1994,30(2):310-315
Four species of the Batrachospermales were examined by transmission electron microscopy to determine whether or not cap membranes, a typical structural component of pit plugs in several orders of red algae, were present. Routine specimen preservation methods used in past studies led to contradictory reports, so Batrachospermum keratophytum Bory, B. sirodotii Skuja ex Reis, Sirodotia suecica Kylin, and S. tenuissima (Collins) Skuja ex Flint were prepared by secondary fixation in potassium permanganate or a combination of potassium ferrocyanide-osmium tetroxide to enhance membrane contrast. These fixation procedures produced clear, well-contrasted images in which cap membranes were absent. The absence of cap membranes in S. suecica and S. tenuissima and the presence of cap membranes in two members of the Nemaliales was confirmed by freeze-substitution methods. Absence of cap membranes in representatives of the Batrachospermales further distinguishes the Batrachospermales from the Nemaliales, the order in which they long resided, and demonstrates the value of this character in elucidating ordinal alliances among the Rhodophyta. 相似文献
13.
Javier Carmona Miriam Bojorge-García Yenny Beltrán Rocio Ramírez-Rodríguez 《Phycological Research》2009,57(2):118-126
The morphology and phenology of a monoecious population of Sirodotia suecica Kylin was evaluated seasonally in a central Mexican fifth-order high-altitude stream. Abundance of gametophytes is positively correlated with concentrations of total dissolved solids, specific conductivity and total ionic concentration; being present the whole dry season and disappearing in the rainy season. The gametophytes grew in eutrophic circumstances and particular microhabitat conditions: high current velocity (66–122 cm s−1 ), low irradiance (75–263 µmol photons m−2 s−1 ) and shallow depth (7–26 cm). Percent cover of gametophytes ranged from 5–90% and significant differences in abundance were not observed when alga was present. Some morphological and reproductive characteristics seem to be adaptations to high current velocity: abundant secondary branches, spermatangia and carpogonia. 'Chantransia' stage, microscopic creeping filaments associated with the base of the gametophyte, were not observed in natural conditions. In terms of reproductive success, the population studied can be regarded as highly efficient, considering the high fertilized carpogonia rate, similar to monoecious populations in lotic habitats. However S. suecica was not common in the study region because it was restricted to particular microhabitat conditions. 相似文献
14.
15.
16.
中国清风藤属Sabia Colebr.(清风藤科)的订正 总被引:7,自引:0,他引:7
邓云飞 《热带亚热带植物学报》2001,9(1):45-48
归并了清风藤属5个名称,Sabia campanulata Wall.ex Roxb.var,kingiana Nayar et Majumder处理为S.campanulata Wall.ex Roxb。的异名,S.metcalfiana L.Chen处理为S.leptandra Hook.f.et Thoms.的异名,S.longruiensis X.X.Chen et D.R,Ling和S.swinhoei Hemsl.ex Forbes et Hemsl.ex FOrb.et Hemsl。的异名,S.nervosa Chun ex Y.F.Wu处理为S.coriacea Rehd.et Wils.的异名,订正了缅甸清风藤S.burmania L.chen在中国有分布的错误报道。 相似文献
17.
18.
关于新疆的粘菌,过去仅知8种,且无一为绒泡菌。本文第一作者于1994年在新疆进行了粘菌资源调查,在随后的研究中共明确了50多个种,有10种为绒泡菌,其中的几个种,如垂头绒泡菌Physarumnutans(Bull.)Pers.是常见和广布的,但也有几种是特殊的和稀有的。本文报告了5种绒泡菌:橙红绒泡菌P.aurantiacum S.L.Chen,Y.LietH.Z.Li和侧扁绒泡菌P.loratumS.L.ChenY.Li etH.Z.Li是新种,黄白绒泡菌P.albescensEllisexT.Macbr.和团聚绒泡菌P.conglomeratum(Fr.)Rostaf.是中国新记录种,已知种黄绿绒泡菌P.virescensDitmar显然少见,国内此前仅知分布于福建。橙红绒泡菌P.aurantiacumS.L.Chen,Y.LietH.Z.Li的孢丝近似钙丝菌状,由或大或小的石灰结将许多细短的孢丝线联成致密的白色网体,这使其被归入绒泡菌属,并与同属其它种相区分;侧扁绒泡菌P.loratumS.L.Chen,Y.LietH.Z.Li的联囊体虽发达而侧扁,但顶部无预成开裂线,在相似种中也易识别。本文对这两个新种 相似文献