摘要:

AbstractUmkombinationen und Neubeschreibungen im infraspezifischen Bereich werden bei Kultursippen vonBrassicaL. (7 Umkombinationen) undPapaverL. (2 Neubeschreibungen, 1 Umkombination) publiziert.Als Folge der Neuklassifikationen der infraspezifischen Variabilität einiger Kulturpflanzen‐Arten, die in der Neuauflage von „Rudolf Mansfelds Verzeichnis landwirtschaftlicher und gärtnerischer Kulturpflanzen”︁ (Schultze‐Motel, 1986) angenommen wurden, ergab sich bei der Zusammenstellung des Index Seminuni 1987 des Gaterslebener Instituts die Notwendigkeit, einige Umkombinationen sowie Neubeschreibungen von infraspezifischen Sippen vorzunehmen. Diese werden hier im folgenden den Regeln entsprechend

ISSN:0014-8962    

DOI:10.1002/fedr.19870981102

出版商:Wiley‐VCH Verlag    

年代:1987

数据来源: WILEY

ISSN:0014-8962    

DOI:10.1002/fedr.19870981103

出版商:Wiley‐VCH Verlag    

年代:1987

数据来源: WILEY

摘要:

AbstractAgeratum conyzoidesL., andA. houstonianumMill., are two exotic weeds completely naturalized in Indian subcontinent invading even the Himalaya. Both are easily confused for each other in herbaria as well as in the field. Reliable morphological characters to distinguish these two closely resembling taxa have been identified and illustrated to facilitate unmistaken determination. Also some observations have been made to Sahu's treatment of these two species with a caution to apply the numerical data to change the taxonomic status of any well established taxon, and instead to utilize the numerical methods in the analysis of evolutionary phenomena.

ISSN:0014-8962    

DOI:10.1002/fedr.19870981104

出版商:Wiley‐VCH Verlag    

年代:1987

数据来源: WILEY

摘要:

AbstractChenopodium acerifoliumAndrz., Univ. Izv. Kiev 7–8: 132, 1862, wird häufig mitChenopodium×subhastatum(Issler ex J. Murr) Dvořák, teilweise mitCh. lobatum(Prodan) Dvořák verwechselt.Chenopodium missourienseAellen, Bot. Not. 1928: 206, 1928, die in Nordamerika beheimatete Art, hat abstehende Knäulchenähren und kleine Samen. Die Pflanzen, die C. Blom in Südschweden gesammelt hat (Aellen bestimmte sie ebenfalls alsCh. missouriense, diese Exemplare liegen aber nicht der Artdiagnose zugrunde), zeigen einen abweichenden Blütenstand, unterschiedliche Blattmorphologie und statistisch signifikant gr

ISSN:0014-8962    

DOI:10.1002/fedr.19870981105

出版商:Wiley‐VCH Verlag    

年代:1987

数据来源: WILEY

摘要:

AbstractThe gross morphology, seed morphology and palynology of the four species ofPortulacain Nigeria have been studied. The colour and number of the corolla, stomatal types and seed coat morphology are of taxonomic importance. The mitotic chromosomes of two species,P. oleracea(2n = 54) andP. grandiflora(2n = 18) are described. A key to the species is provided.

ISSN:0014-8962    

DOI:10.1002/fedr.19870981106

出版商:Wiley‐VCH Verlag    

年代:1987

数据来源: WILEY

ISSN:0014-8962    

DOI:10.1002/fedr.19870981107

出版商:Wiley‐VCH Verlag    

年代:1987

数据来源: WILEY

摘要:

AbstractTwentysix members belonging to the tribe Phaseolae (Fabaceae) have been analysed for their leaf flavanoids, phenolic acids, alkaloids and saponins. It is found, that all the subtribes within, possessed district assortment of chemical characters and therefore their elevation to tribes ist supported.ClitoriaandButea, being chemical dissimilar to other members of the Glycineae and Erythrineae, find a proper place in Euphaseoleae (Tribe Phaseoleae of Hutchinson) and Galactieae respectively. The varietel status ofTeramnus labialisvar.mollisist upheld and the status of a separate species is recommended forRhynchosia minimavar.laxifloraBak.

ISSN:0014-8962    

DOI:10.1002/fedr.19870981108

出版商:Wiley‐VCH Verlag    

年代:1987

数据来源: WILEY

ISSN:0014-8962    

DOI:10.1002/fedr.19870981109

出版商:Wiley‐VCH Verlag    

年代:1987

数据来源: WILEY

摘要:

AbstractA survey of the leaf epidermises of five of the seven species of the family Medusandraceae which is endemic to West Africa, and economically important is presented. The results obtained show that only species,Medusandra richardsianaBrenan has pubescent leaf surfaces, while the other four:Soyauxia gabonensisOliver,S. floribundaHutchinson,S. glabrescensEngler andS. vetulinaHutchinson have glabrous leaf surfaces. Also,Medusandra richardsianaandSoyauxia floribundahave anomocytic subsidiary cells surrounding their stomata, whileSoyauxia gabonensis, S. glabrescensandS. vetulinahave paracytic subsidiary cells surrounding their stomata.

ISSN:0014-8962    

DOI:10.1002/fedr.19870981110

出版商:Wiley‐VCH Verlag    

年代:1987

数据来源: WILEY

摘要:

AbstractThere is presented a treatment on the northernmost taxon of the genusRomuleaMaratti, showing the necessary of its nomenclature asRomulea armoricanaJordan separated fromRomulea columnaeSebastiani et Mauri. Furtheron, more detailed investigated are the both related taxaRomulea syrticaJordan et Fourreau andRomulea rolliiParlatore, resulting in either modern diagnioses either newly compiled distribution maps.

ISSN:0014-8962    

DOI:10.1002/fedr.19870981111

出版商:Wiley‐VCH Verlag    

年代:1987

数据来源: WILEY