摘要:

SummaryA list of features for preparing a numerical taxonomy of the nanoplankton is presented and includes 387 morphological, ultrastructural, physiological, and biochemical characters. The characters are to be recorded and the taxonomic data are to be analyzed by computer to determine: (i) degree of over‐all similarity among the strains, based on the 387 characters; (ii) minimum number and particular characters suitable for construction of an identification key; and (iii) minimum set of characters providing as robust a classification as that developed using all the characters. The approach taken in this study can provide the basis for on‐line computer identification of the photosynthetic, aerobic nanoplankton. Results of an analysis of 10 species of Haptophyceae and Chrysophyceae, using morphological and ultrastructural data, demonstrate the practicality of this proposed system. Dendrograms prepared by computer are presented and comparison of the results obtained by computer analysis with classical taxonomic treatment shows good agreement.

ISSN:0040-0262    

DOI:10.1002/j.1996-8175.1977.tb03827.x

出版商:Wiley    

年代:2019

数据来源: WILEY

ISSN:0040-0262    

DOI:10.1002/j.1996-8175.1977.tb03828.x

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryThe perennial species ofLinanthushave been regarded as members of a number of different genera in the Polemoniaceae, the most notable beingLeptodactylon, Linanthus, andLinanthastrum.A reexamination of the characters used in taxonomic treatments of this species complex, plus a consideration of new or as yet little considered characters suggests that these species are best included inLinanthus.The genusLinanthastrumis rejected herein based on its original circumscription.

ISSN:0040-0262    

DOI:10.1002/j.1996-8175.1977.tb03829.x

出版商:Wiley    

年代:2019

数据来源: WILEY

ISSN:0040-0262    

DOI:10.1002/j.1996-8175.1977.tb03830.x

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryRepresentatives ofVignaspecies may be separated into a number of groups on the basis of their seed protein profiles. Since these groups are consistent with contemporary classifications of the species it is suggested that the procedure employed here may be of value in systematic investigations of this genus. The profiles indicate that the different species examined all have the same major seed storage proteins.

ISSN:0040-0262    

DOI:10.1002/j.1996-8175.1977.tb03831.x

出版商:Wiley    

年代:2019

数据来源: WILEY

ISSN:0040-0262    

DOI:10.1002/j.1996-8175.1977.tb03832.x

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryThe tangle of nomenclature surrounding Roxburgh'sFlora indicais displayed and the date of publication of the first two volumes of the second edition is shown to be in January 1832. Many Roxburgh names were first validly published by others including Buchanan‐Hamilton. Hamilton's overlooked and misinterpreted binomials in Meliaceae and other families in his Commentaries on Rumpf and Rheede and in other papers are reconsidered. This necessitates name changes inChisocheton(where a new subspecific combination is proposed) andDysoxylum, both Meliaceae, and inArtocarpus, Garcinia(where a new combination is proposed) andHygrophila.Later publication of Hamilton MS names by Dillwyn necessitates a new name inCanthium, while three of the ‘new’ names are antedated by overlooked ones in Dennstedt's interpretation of Rheede, necessitating new combinations inParsonsia, ScleropyrumandWrightia.Many names are shown to have been published earlier than is widely supposed, and completely overlooked, validly published binomials inAnacardium, Antidesma, Asclepias, Canthium, Elaeocarpus, Helicteres, Leucas, Pharnaceum, PolypodiumandPterocarpusare listed while Jones's mononomials are considered invalid. Three Hamilton names, two of them legitimately published inCaltha(= ?Delphiniumspp.) are still of uncertain application. An interpretation of Dennstedt's other validly published names based on Rheede plates is appended, necessitating new combinations inAndrographis, Dalbergia, IxoraandTetrastigma.Some six legitimate Dennstedt names, inAsclepias(= ?Tylophorasp.),Aspidium(= ?Dryopteris[s.l.] sp.),Forsythia(=Chionanthussp.),Limonia(= ?Randiasp.),Pothos(= ?Embeliasp.) andUvaria(=Polyalthiasp.) are still of uncertain application.

ISSN:0040-0262    

DOI:10.1002/j.1996-8175.1977.tb03833.x

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummarySixteen plant specimens collected in Australia by Jacques Julien Houtou de Labillardière, naturalist on the voyage of d'Entrecasteaux, 1791‐1794, and eight other Australian specimens possibly collected by Labillardière are listed. Their original names and names in current use are given, with bibliographic citations, data from specimen labels, identification of handwriting on these labels, and locality information from original descriptions. A history of the specimens is given.

ISSN:0040-0262    

DOI:10.1002/j.1996-8175.1977.tb03834.x

出版商:Wiley    

年代:2019

数据来源: WILEY

ISSN:0040-0262    

DOI:10.1002/j.1996-8175.1977.tb03835.x

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryDried plant material can be prepared for anatomical (or general taxonomic) study by soaking it in a 2% to 5% aqueous solution of Contrad 70 until adequate expansion of the tissue is achieved (this occurring in one to several hours). Advantages of Contrad 70 over Aerosol OT (Ayensu 1967) include: more rapid and effective expansion of tissue, better appearance of sectioned tissue due to removal of slight amounts of obfuscating tannins, and easier microtoming of material due to Contrad's greater softening ability. Contrad has no or very little effect on cutin, starch, crystals, tannins, and secretory compounds.

ISSN:0040-0262    

DOI:10.1002/j.1996-8175.1977.tb03836.x

出版商:Wiley    

年代:2019

数据来源: WILEY