摘要:

SummaryBruyns, P. V.&Forster, P. I.: Recircumscription of theStapelieae (Asclepiadaceae). ‐ Taxon40: 381–391. 1991. ‐ ISSN 0040‐0262.The tribeStapelieae (Asclepiadaceae)is recircumscribed to include theCeropegieae.TheStapelieaeare distinguished from other tribes in theAsclepiadoideaeprimarily by the inner or apical germinating mouth on each pollinium. A tribal description and a tentative list of genera for theStapelieaeis given and a key to the tribes and subfamilies ofAsclepiadaceaeis provided.

ISSN:0040-0262    

DOI:10.2307/1223217

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryHarris, S. A.&Ingram, R.: Chloroplast DNA and biosystematics: The effects of intraspecific diversity and plastid transmission. ‐Taxon40: 393–412. 1991. ‐ ISSN 0040‐0262.The widespread application of chloroplast DNA (cpDNA) to plant biosystematics is usually based on a number of assumptions. The assumption of low levels of intraspecific cpDNA variation is reviewed and the conclusion reached that far from being rare, intraspecific cpDNA variation is relatively common. The evidence for the assumption of predominantly maternal plastid transmission is also reviewed. In both of the cases some of the possible effects on phylogenetic reconstruction are considered.

ISSN:0040-0262    

DOI:10.2307/1223218

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryMenezes, N. L. de&Semir, J.:Burlemarxia, a new genus ofVelloziaceae. ‐ Taxon40: 413–426. 1991. ‐ ISSN 0040‐0262.A new genus ofVelloziaceaeis established comprising three species. Two are newly described,Burlemarxia rodriguesiiandB. pungens, while the third,B. spiralis, had previously been assigned toBarbacenia.Taxonomic descriptions of all three species are provided, together with a key for identification. The relationships betweenBurlemarxiaand the other three genera of subfamilyBarbacenioideaeare discussed.

ISSN:0040-0262    

DOI:10.2307/1223219

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryMummenhoff, K.&Zunk, K.: ShouldThlaspi (Brassicaceae)be split? Preliminary evidence from isoelectric focusing analysis of Rubisco. ‐ Taxon 40: 427–434. 1991. ‐ ISSN 0040‐0262.Relationships among taxa ofThlaspisensu lato were tested by isoelectric focusing (IEF) analysis of Ribulose‐1,5‐bisphosphate carboxylase/oxygenase (Rubisco). 14 species were studied, belonging to 3 of the genera previously segregated by Meyer on the basis of seed anatomy. Differences in Rubisco IEF patterns resulted in a grouping of the species into three clusters which are consistent with the respective genera of Meyer.

ISSN:0040-0262    

DOI:10.2307/1223220

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryJensen, U.&Lixue, C.:Abiesseed protein profile divergent from otherPinaceae. ‐Taxon 40: 435–440. 1991. ‐ ISSN 0040‐0262.Legumin‐like 55 KD dimers were found to belong to a major seed storage protein in most genera ofPinaceae.However, the 12Abiesspecies investigated proved to be an exception, failing to reveal any such proteins in the seeds.

ISSN:0040-0262    

DOI:10.2307/1223221

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryCantino, P. D.: Conspecific status ofCardioteucris cordifolia (Labiatae)andCaryopteris siccanea (Verbenaceae). ‐Taxon 40: 441–443. 1991. ‐ ISSN 0040‐0262.Cardioteucris cordifoliaC. Y. Wu andCaryopteris siccaneaW. W. Smith, described in theLabiataeandVerbenaceae, respectively, represent the same species, best retained inCaryopterisrather than segregated as a monotypic genusCardioteucris, and assigned to theVerbenaceaepending further clarification of family boundaries in the Lamiales.

ISSN:0040-0262    

DOI:10.2307/1223222

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryCruden, R. W., Maas, P. J. M.&Maas‐van de Kamer, H.:Hagenbachia (Liliaceae):Reexamination of its familial placement, its authors, the lectotype, and other collections. ‐ Taxon 40: 445–452. 1991. ‐ ISSN 0040‐0262.The inclusion ofHagenbachiainLiliaceaes.l. is reviewed and supported. The description and illustration ofH. brasiliensisprovided by Nees&Martius accurately fit the lectotype (at BR) and include a number of characters that are either rare or do not occur inHaemodoraceae, where it was originally placed. These characters, e.g., flowers in fascicles, jointed pedicels, glabrous tepals and inflorescences, and bifacial leaves are typical ofHagenbachiaand related genera inLiliaceae.The type species name is correctly cited asH. brasiliensisNees&Martius in Schultes. The type locality is in Bahia (Brazil), near to or along the Rio dos Ilhéus upriver from Ilhéus.

ISSN:0040-0262    

DOI:10.2307/1223223

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryTrainor, F. R.: To which species ofScenedesmusshould the nameS. quadricaudaapply? Quadricaudate ecomorphs of spiny species. ‐ Taxon 40: 453–457. 1991. ‐ ISSN 0040‐0262.The nameScenedesmus quadricaudais frequently used for identification of a commonly observed freshwater green alga. Many phycologists agree that the name has been misapplied very often in the last 75 years. Until recently we have not realized that one reason for this confusion is that there is no stable quadricaudate taxon, but rather quadricaudate ecomorphs of several spiny species. It is postulated that every spiny species may have this ecomorph, as doesS. communison which experimental data are here presented.

ISSN:0040-0262    

DOI:10.2307/1223224

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryJeffrey, C: The condition of the Leningrad Herbarium. ‐Taxon40: 459–460. 1991. ‐ ISSN 0040‐0262.The richness of the Leningrad Herbarium, both with regard to specimen numbers and to their value for science, is pointed out and contrasted against the dilapidated state of the herbarium building. If the herbarium, and the equally priceless library, are to be maintained for the future, the international community will have to help so that an entirely new building can be provided. [Ass. Ed.'s abstract.]

ISSN:0040-0262    

DOI:10.2307/1223225

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryNicolson, D. H.: General Commitee Report 3. ‐Taxon40: 461–462. 1991. ‐ ISSN 0040‐0262.Approves the German edition of the Code and, with comments, proposals recommended by the Spermatophyta Committee Report 36.

ISSN:0040-0262    

DOI:10.2307/1223226

出版商:Wiley    

年代:2019

数据来源: WILEY