1. |
OPPORTUNITIES IN BOTANICAL HISTORY† |
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TAXON,
Volume 19,
Issue 6,
2019,
Page 825-830
Joseph Ewan,
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摘要:
SummaryFour opportunities in botanical history obtain: pressing the search for records, saving historically valuable materials before they are lost, compiling informational retrieval aids, and writing interpretive biographies and social histories. Details of these opportunities are discussed with comments on the state of our knowledge and the location of materials.
ISSN:0040-0262
DOI:10.2307/1218297
出版商:Wiley
年代:2019
数据来源: WILEY
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2. |
WILLIAM A. SCHIPP'S BOTANICAL EXPLORATIONS IN THE STANN CREEK AND TOLEDO DISTRICTS, BRITISH HONDURAS (1929—1935)† |
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TAXON,
Volume 19,
Issue 6,
2019,
Page 831-861
Richard M. Lowden,
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摘要:
SummaryHerbarium sets distributed by William A. Schipp to European and American institutions represent one of the most significant and extensive collections ever made of the coastal plain flora for the Stann Creek and Toledo Districts of southern British Honduras. Schipp (1933‐34) compiled the first complete flora of these districts in the form of a Catalogue entitled,Flora of British Honduras, Pricelist of Seeds&Herbarium Material. As a professional Botanical Explorer, Schipp's discrimination in the field yielded a total of 154 taxa new to science, including two new genera,SchippiaBurret andSchizocardiaSmith&Standley (=PurdiaeaPlanchon). Itineraries for collections made by Schipp from 1929 through 1935 are based on 1462 herbarium specimens found in the Forestry Department Herbarium, Paslow Building, Belize City, British Honduras. Schipp's specimens in the Forestry Department Herbarium include 115 isotypes which have been verified, restored, and placed in a type collection. Maps are presented to aid in the location of previously vague type localities.
ISSN:0040-0262
DOI:10.2307/1218298
出版商:Wiley
年代:2019
数据来源: WILEY
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3. |
QUANTITATIVE ATTRIBUTES IN TAXONOMIC DESCRIPTIONS |
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TAXON,
Volume 19,
Issue 6,
2019,
Page 862-870
N. Jardine,
R. Sibson,
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摘要:
SummaryIn this paper we suggest how quantitative attributes may most usefully and informatively be used in describing taxa, and point out certain inadequacies in the conventional ways in which quantitative attributes are used in taxonomic descriptions.
ISSN:0040-0262
DOI:10.2307/1218299
出版商:Wiley
年代:2019
数据来源: WILEY
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4. |
CHOROLOGY, COLLECTION DATES, AND TAXONOMIC RESPONSIBILITY |
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TAXON,
Volume 19,
Issue 6,
2019,
Page 871-874
John L. Strother,
Alan R. Smith,
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摘要:
SummaryTaxonomists generally recognize the value of collection dates in planning biosystematic research but do not always appreciate their usefulness in documenting migrations and introductions. A survey of several journals shows that many taxonomists fail to include collection dates in monographs and other taxonomic treatises. Correlation of collection dates for a particular taxon with dates of general botanical collecting in a particular locality has been used to document an eastward migration of ***Dyssodia tenuiloba(DC) Rob. in Texas and the introduction ofThelypteris dentata(Forssk.) E. St. John into the New World.
ISSN:0040-0262
DOI:10.2307/1218300
出版商:Wiley
年代:2019
数据来源: WILEY
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5. |
ON THE QUESTION OF THE MUTUAL EXCLUSIVENESS OF BETALAINS AND ANTHOCYANINS |
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TAXON,
Volume 19,
Issue 6,
2019,
Page 875-878
Linda Kimler,
James Mears,
T. J. Mabry,
Heinz Rösler,
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摘要:
SummaryIn 1949 betalains were reported to possibly co‐occur with an anthocyanidin (cyanidin) inCarpobrotus edulis;however, upon re‐examination of this plant, only betalains and leuco‐anthocyanidins were detected. Thus, to date, all evidence indicates that the two classes of plant pigments, betalains and anthocyanins, are mutually exclusive. The detection of betalains in seven species belonging to the family Amaranthaceae and ten species of the Chenopodiaceae are also reported.
ISSN:0040-0262
DOI:10.2307/1218301
出版商:Wiley
年代:2019
数据来源: WILEY
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6. |
EFFECTS OF PREPARATION TECHNIQUE ON POLLEN PREPARED FORSEMOBSERVATIONS |
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TAXON,
Volume 19,
Issue 6,
2019,
Page 879-886
Sharon Hanks,
David E. Fairbrothers,
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摘要:
SummaryPollen grains of taxa representing the four described pollen types ofFagusandNothofaguswere observed with the scanning electron microscope to determine preparation effects. Pollen grains were observed before treatment with KOH, after treatment with KOH, and after acetolysis had been completed. The photomicrographs illustrate that the effect of various preparation techniques differ from species to species. Therefore, it is important in any systematic pollen research to ascertain the amount of change in the material so that the data can be placed in proper perspective for comparative interpretation.
ISSN:0040-0262
DOI:10.2307/1218302
出版商:Wiley
年代:2019
数据来源: WILEY
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7. |
JOINVILLEACEAE, A NEW FAMILY OF MONOCOTYLEDONS |
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TAXON,
Volume 19,
Issue 6,
2019,
Page 887-889
P. B. Tomlinson,
A. C. Smith,
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摘要:
SummaryStudies of the vegetative morphology and anatomy of the generaFlagellariaandJoinvilleaindicate that there are striking and highly significant differences between them, of such a nature that the current concept of the family Flagellariaceae seems artificial. ThereforeJoinvilleais segregated into a newly proposed family, Joinvilleaceae.
ISSN:0040-0262
DOI:10.2307/1218303
出版商:Wiley
年代:2019
数据来源: WILEY
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8. |
ANMERKUNGEN ZUR ERNEUTEN TYPISIERUNG VON ANDROSACE VITALIANA (L.) LAP. (PRIMULACEAE) |
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TAXON,
Volume 19,
Issue 6,
2019,
Page 890-899
A. Kress,
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摘要:
SummaryAndrosace vitaliana(L.) Lap. (Primula vitalianaL.) has been typified differently by recent authors. The proposal to typify the name by Sesler's plate is rejected; instead the typification on the basis of the relevant specimen in the Burser herbarium is reiterated.
ISSN:0040-0262
DOI:10.2307/1218304
出版商:Wiley
年代:2019
数据来源: WILEY
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9. |
DIE AELTESTE EMENDATION VON STIPA PENNATA L. |
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TAXON,
Volume 19,
Issue 6,
2019,
Page 900-903
Stephan Rauschert,
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摘要:
SummaryAccording to Art. 53 of the ICBN the nameStipa pennataL. which is given as an example to the rule in the Code, must be used forS. joannisČelak.; it was Mansfeld (1939) who reintroduced this name. Some recent authors abandon Mansfeld's lectotypification and propose to eliminate the example of S.pennataL. from Art. 53. The present author shows that there is no reason to do so because the alteration of the diagnosis given by Steven (1857) cannot be considered an emendation and Mansfeld's lectotypification was not based upon a misinterpretation of the original description.
ISSN:0040-0262
DOI:10.2307/1218305
出版商:Wiley
年代:2019
数据来源: WILEY
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10. |
NACHTRAG ZUR NOMENKLATUR DER ACONITUM NAPELLUS‐GRUPPE IN EUROPA |
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TAXON,
Volume 19,
Issue 6,
2019,
Page 904-905
Wolfgang Seitz,
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摘要:
SummaryThe nameAconitum divergensPančić (1883) (see Seitz 1969) is a younger homonym forAconitum divergensRafinesque (1836) which is synonymous withA. uncinatumL. — a species from North America. Therefore,A. divergensPanč. must be rejected according to article 64 of the International Code of Botanical Nomenclature (ICBN 1961). The legitimate name ofA. divergensPanč. is“Aconitum pentheriHayek (1917)” including the type subspecies “ssp.pentheri”and the new combination “ssp.burnatii(Gayer) Seitz comb. nov.”.
ISSN:0040-0262
DOI:10.2307/1218306
出版商:Wiley
年代:2019
数据来源: WILEY
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