摘要:

In preparation for a forthcoming revision of the family Aristolochiaceae in Australia and New Guinea, a total of 14 new species and two new subspecies are described. Due to the fact that Aristolochiaceae within the region fall into two distinctive, well‐defined groups of species, it was considered necessary to examine the affinities of these within the family. One group belongs toAristolochia,whereas the other is clearly accommodated inPararistolochia,the latter previously regarded as being solely a tropical African genus. The distinction betweenPararistolochiaandAristolochiais discussed. It is concluded that the Australia and New Guinea taxa were found to substantiate circumscriptionof Pararistolochia.Two new species ofAristolochia(A. nauseijoliaandA. goliathiana) are described, as well as 12 species ofPararistolochia(P. alexandriana, P. australopithecurus, P. biakensis, P. kepara, P. manokwariensis, P. meridionaliana, P. paradisiana, P. peninsulensis, P. tithonusiana, P. sepikensis, P. spamsifolia, P. linearifolid). Two subspecies of,P. meridionaliana(subsp.popondettensisand subsp.milnensis)are described. Eleven other taxa from Australia and New Guinea are newly combined underPararistolochia: P. deltanthaF. Muell., 1868;P. dictyophlebiaMerr.&Perry, 1948;P. dielsianaO.C. Schmidt, 1923;P. englerianaO.C. Schmidt, 1927;P. gracilifoliaO.C. Schmidt, 1923;P. laheyanaBail., 1912;P. momandulK. Sch., 1889;P. praevenosaF. Muell., 1861;P. pithecurusRidl., 1914;P. schlechteriLaut., 1905; as well asP. decandraDing Hou, 1983, from Borne

ISSN:0024-4074    

DOI:10.1111/j.1095-8339.1996.tb00772.x

出版商:Blackwell Publishing Ltd    

年代:1996

数据来源: WILEY

摘要:

Biebersteinia orphanidiswas considered extinct from Greece and Europe as it had not been collected since Orphanides' type collection of 1851. Its rediscovery is reported here from a mountain close to the classical locality. The species serves as a distinct phytogeographical link between the floras of Greece and Anatolia. In Greece, at least, it grows in a critically low number of individuals. Data on the species habitat and population status are given, and potential threats to its survival are discussed.

ISSN:0024-4074    

DOI:10.1111/j.1095-8339.1996.tb00773.x

出版商:Blackwell Publishing Ltd    

年代:1996

数据来源: WILEY

摘要:

Phenotypic and genetic variation within and among eight populations ofArabis serrataare documented in this study. This species shows great morphological variation throughout its geographical distribution in Japan. Plants are located in habitats with different types of soils and degree of disturbance. Half‐sibs progenies from eight populations were collected and cultivated in a garden experiment. Nine morphological traits representing size and shape of rosette leaves were recorded. Univariate analyses of measured traits showed that phenotypic means differed among populations for all characters. Leaves of plants from disturbed habitats had the longest petioles (lanceolate) and plants from limestone habitats showed the most roundness in leaf shape (ovate). The northernmost populations always revealed the smallest leaves. Multivariate principal component analyses also showed that leaf shape and size varied among populations. The first three principal components explained 98.5% of the variation. Coefficients of variation had a very wide range and differed from one population to another. Some traits (e.g. leaf width/leaf length ratio) were consistently less variable while others (e.g. leaf area and petiole length) were more plastic. All traits had significant genetic variance in all populations. Intra‐class correlation coefficients differed for most of the traits and each population presented a different range of values. Most of the leaf traits were intercorrelated in all the populations studied, although some populations were integrated more tightly for some traits. Populations ofA. serrataare differentiated in phenotypic means but they display a mosaic of traits with slight morphological differences in each locality (i.e. a quantitative genetic variation). Some traits can be correlated to the habitats that they occupy but for some of them it is difficult to assign an actual adaptive va

ISSN:0024-4074    

DOI:10.1111/j.1095-8339.1996.tb00774.x

出版商:Blackwell Publishing Ltd    

年代:1996

数据来源: WILEY

摘要:

Two new species ofVelloziafrom the Espinhaco range in the State of Minas Gerais, Brazil, are described and their taxonomic relationships are considered. A discussion of their geographical distribution and an account of their leaf anatomy is provided.

ISSN:0024-4074    

DOI:10.1111/j.1095-8339.1996.tb00775.x

出版商:Blackwell Publishing Ltd    

年代:1996

数据来源: WILEY

摘要:

Leaf micromorphological features of both the Old and New World representatives ofEugeniaL. have been studied by light microscopy and scanning electron microscopy. The leaves are hypostomatic and, in the majority of species, the stomata are raised above the epidermis. Trichomes are usually present on the abaxial surface of the New World species. The patterns of abaxial surface sculpturing and arrangement of outer stomatal rims are unique in the New World species. The majority of the Old W'orld species showed different anticlinal wall patterns on the adaxial and abaxial epidermises. In the majority of the New World species the anticlinal wall patterns are more or less the same except inE. axillaris.The paracytic type of stomata, with a non‐prominent T‐piece cutinization at the poles of the guard cells, is a characteristic feature of the New World species. The taxonomic significance of these features in identification and elucidation of species from both areas is discus

ISSN:0024-4074    

DOI:10.1111/j.1095-8339.1996.tb00776.x

出版商:Blackwell Publishing Ltd    

年代:1996

数据来源: WILEY

摘要:

The presence of a bimodal karyotype inCynomorium coccineum(2n = 28) is used to support its separation from Balanophoraceae and the maintenance of Cynomoriaceae as a separate family.

ISSN:0024-4074    

DOI:10.1111/j.1095-8339.1996.tb00777.x

出版商:Blackwell Publishing Ltd    

年代:1996

数据来源: WILEY

摘要:

Book reviewed in this article:The European Garden Flora. Vol IV, Dictoyledons Pt II, Dilleniaceae to Leguminosae, ed. J. Cullen el al.Flora of the Pico das Almas, Chapada Diamantina, Bahia, Brazil‐ ed.B. L. Stannard.Herbal Drugs and Pharmaceuticals, by Max Wichtl, Ed. N.G. Bisset.The Botany of Mangroves, by P. B. Tomlinson.Plant Resources of South‐East Asia (PROSEA). No.7 Bamboos; ed. S. Dransfi

ISSN:0024-4074    

DOI:10.1111/j.1095-8339.1996.tb00778.x

出版商:Blackwell Publishing Ltd    

年代:1996

数据来源: WILEY