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A revision ofLobostemonLehm., and a discussion of the Species Problem. |
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Journal of the Linnean Society of London, Botany,
Volume 49,
Issue 330,
1934,
Page 393-451
Margaret R. Levyns,
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摘要:
SUMMARY1The previous accounts of the genusLobostemonare shown to be inadequate, and a complete revision has been made.2A small genusEchiostachysis separated fromLobostemonon floral and vegetative features.3A more precise definition ofLobostemonis given, and it is shown that the so‐called Lobostemons of Tropical Africa have no claim to inclusion in the genus, which is purely South African.4Lobostemonis subdivided into five well‐marked sections, the characters of which are given.5While the sections may be easily recognised, many of the species show ill‐defined boundaries.6A cytological investigation of half the species ofLobostemonand all the species ofEchiostachyshas been made. The basic number of chromosomes is seven in both genera.7The species problem is discussed, and it is shown that Vavilov's Law of Homologous Series in Variation is applicable here.8Detailed descriptions of the two genera and the species are given, together with their synonomy. Herbarium specimens are cited under each species.9Keys to the species are
ISSN:0368-2927
DOI:10.1111/j.1095-8339.1934.tb00394.x
出版商:Blackwell Publishing Ltd
年代:1934
数据来源: WILEY
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| 2. |
A study ofVeronicafrom the viewpoint of certain floral characters. |
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Journal of the Linnean Society of London, Botany,
Volume 49,
Issue 330,
1934,
Page 453-493
Edith R. Saunders,
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PDF (3999KB)
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ISSN:0368-2927
DOI:10.1111/j.1095-8339.1934.tb00395.x
出版商:Blackwell Publishing Ltd
年代:1934
数据来源: WILEY
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| 3. |
The Water Relations of the Plant Cell. |
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Journal of the Linnean Society of London, Botany,
Volume 49,
Issue 330,
1934,
Page 495-502
Elizabeth C. M. Ernest,
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PDF (406KB)
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ISSN:0368-2927
DOI:10.1111/j.1095-8339.1934.tb00396.x
出版商:Blackwell Publishing Ltd
年代:1934
数据来源: WILEY
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首页
Volume 49 issue 330