摘要:

SummaryA 3‐dimensional model based upon a modified discriminant function analysis is considered to be a valuable aid to concepts of evolutionary relations betweenFroelichia(cottonweed; Amaranthaceae) species. To test whether the model's configuration is a reflection of multivariate relationships rather than merely an artefact, a computer program was designed to simulate the kind of evolutionary change which characterizesFroelichiaand many other “closely related” taxa. A 3‐dimensional discriminant function model based upon five simulated taxa accurately portrayed the relationships programmed. This result, plus others not cited here, are taken as initial support for the validity of such models when applied to real biological objects.

ISSN:0040-0262    

DOI:10.2307/1216143

出版商:Wiley    

年代:2019

数据来源: WILEY

ISSN:0040-0262    

DOI:10.2307/1216144

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryThe term ‘furuncle’ (Lat.swelling;adj.furunculate) is proposed for use in describing plant organs having ‘cystoliths' or ‘raphids' as cell‐inclusions, discernible in herbarium specimens as elevated areas on the surfaces of leaves and other organs.

ISSN:0040-0262    

DOI:10.2307/1216145

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryThe determination of the stem of generic names ending in‐isis a special task for each particular case. In the future it is preferable to avoid such names, except for quite obvious cases, viz. names having a second (final) part of either Greek or Latin origin ending in‐is,or a Greek stem, with the widespread Greek element‐itis(itidis),‐yllis(ellidis) and so on.For existing names one should be guided by the following criteria:the grammatical form of the ancient word (Latin or Greek).the existing tradition (which in most cases does not contradict 1).the formation of the stem by analogy.

ISSN:0040-0262    

DOI:10.2307/1216146

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryThe genusRacodiumPersoon was lectotypified as early as 1829 by E. Fries by the speciesR. rupestrePers. This is a species belonging to the imperfect Lichens. The well‐known cellar fungusRacodium cellarePersoon does not belong to the genusCladosporiumbecause of the different structure of the conidiophor, but to the genusZasmidiumFries (1849) for which it is the type species [Z. cellare(Pers. ex Fr.) Fr.].

ISSN:0040-0262    

DOI:10.2307/1216147

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryA brief historical review of the genusHexagonaFr. and discussion of its typification are presented. The indication ofHexagona crinigeraFr. as lectotype is considered to be the most suitable. The genusHexagonaFr. should be restricted to the group of species included by Fries in 1838 in his first section, around which allied species should be grouped.While studying the genusHexagonaI found the question of its typification a most difficult and serious problem. Several non‐congeneric species have been designated by different authors as the type. Different interpretations of the International Code of Nomenclature favored diversified conclusions, making the situation more and more confused. I decided to study this problem with the hope of clarifying the situation with some new evidence.

ISSN:0040-0262    

DOI:10.2307/1216148

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryHibiscusL. was first typified by Ph. Miller who restricted the genus to the single speciesHibiscus malvaviscusL. In order to retain present usage it will be necessary to conserveHibiscusL. with the typeH. syriacusL. and to conserveMalvaviscusCav. with the typeHibiscus malvaviscusL. as proposed in Taxon 15: 43. 1966.

ISSN:0040-0262    

DOI:10.2307/1216149

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryIn 1753, Linnaeus recognized three species ofCheloneinSpecies Plantarum.The first of these is the type of the genus and does not concern us here. The two remaining species are actually members of the genusPenstemonas here understood. Although Francis W. Pennell designated types for these names in 1935 (Mon. Acad. Nat. Sci. Philad. 1: 217, 239), the discussion below attempts to show that the original usage by Linnaeus has not been preserved, and indeed has been switched one with the other. Since such names are empty of meaning, it is proposed that they be rejected asnomina transmutata.

ISSN:0040-0262    

DOI:10.2307/1216150

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryFormal recognition is given on the varietal level to the wild and cultivated forms ofCapsicum baccatumL. BothC. microcarpumCav. and C.pendulumWilld. are brought under the synonymy ofC. baccatumL. The cultivated chili pepper of South America is now namedC. baccatumvar.pendulum(Willdenow) Eshbaugh.

ISSN:0040-0262    

DOI:10.2307/1216151

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryThe correct name for the plant commonly cultivated and escaped in tropical areas currently known in horticulture as “Clerodendrum fragrans” isClerodendrum philippinumSchauer. The name is here lectotypified; the main synonymy is listed.

ISSN:0040-0262    

DOI:10.2307/1216152

出版商:Wiley    

年代:2019

数据来源: WILEY