摘要:

SummaryPhylogenetic trees for 11 angiosperm families have been constructed using data from 106 macro‐molecular sequences, 12 of them new and the rest from published sequences of cytochrome c, plastocyanin, ribulose‐1,5‐bisphosphate carboxylase small subunit, ferredoxin and 5S‐ribosomal‐RNA. Analyses of data from single macromolecules are not consistent with one another but, for nine families, a phylogenetic tree derived from three macromolecules remains consistent as a fourth macromolecule is added. This nine‐family tree is thought to be reliable. The positions of the other two families, Malvaceae and Ranunculaceae, remain uncertain. A relationship between Chenopodiaceae and Polygonaceae confirms other taxonomic work but an equally reliable and close relationship between Fabaceae and Brassicaceae merits further taxonomic investigation.

ISSN:0040-0262    

DOI:10.2307/1221206

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryThe nineteenth century history of the discovery of pollen structure and function in flowering plants is reviewed, with special reference to aquatic forms.Um die Geschichte der Wissenschaften aufzuklären, um den Gang derselben genau kennen zu lernen, pflegt man sich sorgfältig nach ihren ersten Anfangen zu erkundigen; man bemüht sich zu forschen: wer zuerst irgendeinem Gegenstand seine Aufmerksamkeit zugewendet, wie er sich dabei benommen, wo und zu welcher Zeit man zuerst gewisse Erscheinungen in Betracht gezogen, dergestalt, dass von Gedanke zu Gedanken neue Ansichten sich hervorgetan, welche durch Anwendung allgemein bestätigt endlich die Epoche bezeichnen, worin das, was wir eine Entdeckung, eine Erfindung nennen, unbezweifelt zutage gekommen: eine Erörterung, welche den mannigfachsten Anlass gibt, die menschlichen Geisteskräfte zu kennen und zu schätzen.Morphologie. Goethe, 1831.

ISSN:0040-0262    

DOI:10.2307/1221207

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryThere is no general consensus among bryologists as to the best system for describing sexual expression in mosses, liverworts, and hornworts. Existing schemes are not logically consistent: in some cases they emphasize functional considerations and in other cases, genetic considerations. Different authors, especially those working with mosses versus liverworts, use the same term to describe different sexual conditions. Lack of a set of terms collateral with those most widely used for other embryophytes has prevented cross‐comparisons to the detriment of understanding in both areas. This paper illustrates these problems and suggests an alternative system of terminology that is logical, consistent, and comprehensive and which coincides with usage for pteridophytes and seed plants.

ISSN:0040-0262    

DOI:10.2307/1221208

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryThe Monotoideae are re‐examined in detail in comparison with the Dipterocarpaceae. It is concluded that the Monotoideae, includingPakaraimaea, are more closely allied to the Tiliaceae.

ISSN:0040-0262    

DOI:10.2307/1221209

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryVarious repeated observations carried out in different areas of the Mediterranean basin have shown thatQuercus cocciferaL. s.l. has three other reproductive cycles in addition to the normal biennial acorn maturation. It is therefore suggested that the strict description of “biennial” be corrected in all future analytical keys and descriptions.

ISSN:0040-0262    

DOI:10.2307/1221210

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryTransferringSymphysiatoVacciniumexpands the circumscription of the latter in terms of pedicel morphology, calyx tube enlargement before anthesis, floral plasticity and seed shape. AlthoughVacciniumis a diverse genus comprising about 30 sections, addingSymphysiais tantamount to making the genus a dumping ground for anyVaccinieaeof uncertain affinity.

ISSN:0040-0262    

DOI:10.2307/1221211

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryKnown publications of Huber&Co. (Hyères, France) are listed and their new plants identified as far as possible. The relationship between the nursery and other firms and botanists, particularly Ortgies and Roezl, is explored and names published by other firms also introducing new material, notably that of Roezl from the Americas, are discussed. Many plants are unidentifiable thoughCucurbita argyrospermaHuber is the oldest name forC. mixtaPang., whileSalvia camphorataHuber may well be an older name forS. apianaJepson and there may have to be further changes inCleomeandSalvia. Astragalus marianusHuber is an earlier homonym ofA. marianus(Rydb.) Barneby, which is here renamedA. piutensisBarneby&Mabb., andHibiscus spinulosusHuber is an earlier homonym ofH. spinulosus(W. V. Fitzg.) F. B. Wilson, which is here renamedH. fryxelliiMabb. There are changes in authority in currently used names inCampsidiumandTillandsiaand over 70 additions toIndex kewensis.

ISSN:0040-0262    

DOI:10.2307/1221212

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryThe genusDisais probably named after Queen Disa in a famous Swedish saga from the Uppsala area or, less probable, after the “disas,” goddesses especially worshipped in Uppsala during pagan time.

ISSN:0040-0262    

DOI:10.2307/1221213

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryThe type locality for the speciesPyrola picta, P. dentata, andP. aphylla, collected by Menzies from the northwest coast of North America, has been considered to be Nootka Island, located on the northwest coast of Vancouver Island. A review of Menzies' journal of Vancouver's survey of the northwest coast during 1792 and other publications dealing with his voyage during the 1793 and 1794 seasons indicates that the type specimens could not have been collected at Nootka Island. Visits to the settlement at Nootka were made at the wrong times of the year for collecting flowering specimens. Menzies'journal for 1792 suggests that the probable collection site is Nipple Summit on West Redonda Island off the mainland coast of British Columbia. It is at the same latitude as Nootka, but about 150 km to the east.

ISSN:0040-0262    

DOI:10.2307/1221214

出版商:Wiley    

年代:2019

数据来源: WILEY

ISSN:0040-0262    

DOI:10.2307/1221215

出版商:Wiley    

年代:2019

数据来源: WILEY