Acta Phytotaxonomica et Geobotanica
Online ISSN : 2189-7050
Print ISSN : 0001-6799
Volume 25, Issue 4-6
Displaying 1-25 of 25 articles from this issue
  • Gen MURATA
    Article type: Article
    1973Volume 25Issue 4-6 Pages 97-106
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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  • Gen MURATA
    Article type: Article
    1973Volume 25Issue 4-6 Pages 107-118
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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  • [in Japanese], [in Japanese]
    Article type: Article
    1973Volume 25Issue 4-6 Pages 118-
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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  • Masahiro KATO
    Article type: Article
    1973Volume 25Issue 4-6 Pages 119-126
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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    1. The trichomes of the Athyriaceae are observed, and the classification is revised chiefly based upon the features of the articulated hairs, with special reference to Athyriopsis, Dryoathyrium, Lunathyrium, and some others. 2. The articulated hairs of Athyriopsis, Dryoathyrium, and Lunathyrium are interpreted here as the extremely reduced scales and not identical with the other typical hairs, because there are successively transitional forms between those articulated hairs and the scales, and both of them bear the same type of glandular cells at the apex. 3. The genus Lunathyrium is here revised as to include all the species of Athyriopsis, Dryoathyrium, Lunathyrium, and such species as Lunathyrium bonincolum of the Bonin and the Volcano Islands and Athyrium kaalaanum, A. macraei (=A. proliferum), A. mauianum, Diplazium fenzlianum and D. marginale of the Hawaiian Islands. The key characters to this enlarged genus are to be found in the articulated hairs as well as the groove of the upper surface of the leaf axis, the chromosome number, the gametophytic features, and so on. 4. The genus Lunathyrium so defined is better classified into four subgroups or sections: Athyriopsis, Dryoathyrium except for D. henryi, D. pterorachis and their close relatives which are better placed in Lunathyrium, Lunathyrium s.str., and a group consisting of L. bonincolum and several Hawaiian species mentioned above. These subgroups will be defined on the basis of such features as the rhizome, base of stipe, trichome, sorus, and spore. 5. Acystopteris and Monomelangium have been related to Lunathyrium, based mainly on the presence of the articulated hairs. In spite of such an apparent similarity, Acystopteris and Monomelangium are better placed in Cystopteris and Diplazium, respectively.
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  • T. SHIMIZU
    Article type: Article
    1973Volume 25Issue 4-6 Pages 126-
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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  • Naofumi KITAGAWA
    Article type: Article
    1973Volume 25Issue 4-6 Pages 127-130
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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  • Naohiro NARUHASHI
    Article type: Article
    1973Volume 25Issue 4-6 Pages 131-135
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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  • [in Japanese]
    Article type: Article
    1973Volume 25Issue 4-6 Pages 135-
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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  • [in Japanese]
    Article type: Article
    1973Volume 25Issue 4-6 Pages 135-
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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  • Michio WAKABAYASHI
    Article type: Article
    1973Volume 25Issue 4-6 Pages 136-153
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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    1) Thirteen Japanese species belonging to the genus Mitella (Saxifragaceae) are revised taxonomically with special reference to the morphology of flowers, the chromosome numbers, and their karyotypes. The distribution maps of all the Japanese species are given in Figs. 19-20. 2) The variation in the division of the petal was observed much greater than that reported previously even within a single species. There is a tendency of progressive reduction in the division of the petal usually in the basal portion of petal, and most extremely reduced ones are found in the apetalous flowers. This seems to be polytopic in occurrence, and any evolutionary trend can not be indicated only by this feature. 3) The chromosome numbers of Japanese species are shown in Table 2. The species with the superior ovary have 2n=14, and those with the inferior ovary 2n=28 or rarely 2n=42. 4) The karyotypes of Japanese species are shown in Figs. 4-18 and are summarized in Table 3. The two species with 2n=14 (M. nuda and M. integripetala) are distinct from each other in the karyotype and no close affinity can be found, and this is also supported from morphology. Among those with 2n=28, M. doiana, M. furusei, M. leiopetala, and M. stylosa have the chromosomes many in symmetrical form and less different in size within a single set, while the species having many asymmetrical chromosomes and those different in size within a single set are M. japonica and M. yoshinagae which are much more specialized than the formers in their karyotypes. The species morphologically specialized have not always the specialized karyotypes as seen in the case of M. doiana. 5) M. stylosa, M. furusei, M. leiopetala, M. makinoi and M. doiana are suggested to have close affinities to each other, and M. japonica, M. yoshinagae and M. kiushiana may also be speculated as that. M. pauciflora, M. acerina, and M. koshiensis remain further to be investigated, though these karyotypes resemble each other in appearance. 6) M. furusei seems to have an affinity to M. stylosa more closely than to M. koshiensis, and OHWI's proposal to reduce M. furusei to a variety of M. koshiensis should be rejected. The affinities among M. stylosa, M. leiopetala and M. makinoi are pointed out by OHWI and are supported by additional data given in this paper.
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  • [in Japanese]
    Article type: Article
    1973Volume 25Issue 4-6 Pages 153-
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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  • Michio WAKABAYASHI
    Article type: Article
    1973Volume 25Issue 4-6 Pages 154-169
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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    東アジアに分布するユキノシタ属のDiptera節は,ENGLER(1930)によると13種を含み,そのうち5種が日本に産するが,最近,この節に属する新種が福井県の丈競山北山麓で,渡辺定路氏によって最初に採集された.そこで,この新種の分類学的位置づけのため,新種を含めた6種の日本産種について,いくつかの形質を比較検討し,各種間の類縁関係を考察するとともに,新種の記載を行ったので,ここに要約してみたい.結論として導き出された6種間の関係をFig. 14に示してあるが,最も大きな指標形質となったものは染色体数,及び核型である.各種の染色体はTable 1に示すとおり,2n=22 (ジンジソウ,ダイモンジソウ),2n=20 (ハルユキノシタ,センダイソウ,新種),2n=36, 54 (ユキノシタ)であり,基本数はそれぞれX=11, X=10, X=9である.これらの3群は各々まとまった分類群と考えられるが,このことはジンジソウとダイモンジソウ(X=11),及びハルユキノシタとセンダイソウ(X=10)の核型がよく似ていることからも示唆される.染色体の大きさは,ジンジソウ,ハルユキノシタでは大変大きく,ダイモンジソ,ユキノシタでは小さく,センダイソウ,新種ではその中間の大きさである.進化の過程において,染色体の大きさの退化,及び基本数の減少は,広く認められている.おそらくダイモンジソウ,及びセンダイソウは,染色体の大きさの退化を伴ないながら,それぞれジンジソウ,及びハルユキノシタに似たものから導びかれてきたものと考えられる.ユキノシタは,2n=18をもったprimitiveな種を仮定し,そのようなものから倍数化,及び染色体の退化によって導びかれたものと考えられる.新種の核型をみると,ハルユキノシタ,センダイソウより,terminalに一次狭窄をもつ染色体が多い.これは,この新種が,より特殊化していることを示すものであろう.また基本数の減少,x=11→10→9,から,ジンジソウ→ハルユキノシタ→ユキノシタの祖先型が考えられる.ジンジソウ,ハルユキノシタとも,同じように大きい染色体をもつことも1つの傍証となる.要するに,ジンジソウ,ハルユキノシタなどはprimitiveな型を保っているものと考えられ,ダイモンジソウ,センダイソウ,新種,及びユキノシタはadvancedのものであって,前者から後者へとそれぞれ平行的に進化してきたものと考えられる.外部形態からみると,花弁に走る脈が一般に多いもの(ジンジソウ,ハルユキノシタ,ユキノシタ)と,一般に脈の少ないもの(ダイモンジソウ,センダイソウ,新種)が認められ,後者は前者の退化型と考えられる.種子の表面形態にも2つの型があり,1つは,表面に大小2種類の突起を有するもの(ジンジソウ,ハルユキノシタ,ユキノシタ)と,他は1種類の突起しか有しないsimpleなもの(ダイモンジソウ,センダイソウ,新種)である.葉に含まれる修酸石灰結晶の形にも2種類あり,1つは針状のもの(ジンジソウ,ハルユキノシタ): 他は金米糖状のもの(ダイモンジソウ,センダイソウ,新種,ユキノシタ)である.花序にある腺毛の形態にも2つの型があり,1つは腺毛の柄が一列の細胞からなるもの(ジンジソウ,ハルユキノシタ,ユキノシタ)と,他は多列の細胞からなるもの(ダイモンジソウ,センダイソウ,新種)である.以上のように,外部形態のいくつかの形質には,それぞれ2つの型が認められ,その型に含まれる種は,ほとんど一致している.それぞれの型で代表される群は,各々まとまった自然群であるというよりむしろ,前者の型から後者の型へと平行的に進んできたものと考えられる.このことは,花弁や染色体の形質から推定されるように,一方が他よりも,よりadvancedのものと考えられるからであり,葉に含まれる修酸石灰結晶,種子表面の突起,花序の腺毛などに認められるそれぞれの型も,前述のものと関連があるからである.以上の結果から,今のところ,日本産Diptera節の各種の関係はFig. 14に示されたようなものと考えられ,ここでの新種は,センダイソウ,あるいはハルユキノシタに類縁の近い種として位置づけられるだろう.新種の特徴として,以上述べた形質の他に,葉は掌状に5〜7深裂し,裂片は,倒卵状披針形鋭頭,不規則な欠刻状鋸歯を有し,根茎は横走して密に分枝し,花期は5〜6月,などである.名称はSaxifraga acerifolia WAKABAYASHI et SATOMI とし,和名は渡辺定路氏によるエチゼンダイモンジソウとする.
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  • [in Japanese]
    Article type: Article
    1973Volume 25Issue 4-6 Pages 169-
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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  • Motozi TAGAWA
    Article type: Article
    1973Volume 25Issue 4-6 Pages 170-180
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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  • M. TAGAWA
    Article type: Article
    1973Volume 25Issue 4-6 Pages 180-
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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  • Yasuji FUJITA
    Article type: Article
    1973Volume 25Issue 4-6 Pages 181-185
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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    The anthor has discussed the distribution of vernacular names of banana in the Southern Asia and picked up the following eleven series of name group; that is mok kalo, tula, bale, vasha, pisang, punti, gedang, koi, Joka and vinivu. These show the various migrations of people and culture in remote times respectively.
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  • [in Japanese]
    Article type: Article
    1973Volume 25Issue 4-6 Pages 185-
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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  • [in Japanese]
    Article type: Article
    1973Volume 25Issue 4-6 Pages 185-
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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  • [in Japanese]
    Article type: Article
    1973Volume 25Issue 4-6 Pages 185-
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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  • Teikichi HOTTA
    Article type: Article
    1973Volume 25Issue 4-6 Pages 186-187
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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    At Quelpaert in Korea, the author named one variety of var. saishuensis, and discovered two varieties of var. subulata, var. caudatifolia and one form of f. dissecta, respectively.
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  • [in Japanese]
    Article type: Article
    1973Volume 25Issue 4-6 Pages 187-
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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  • [in Japanese]
    Article type: Article
    1973Volume 25Issue 4-6 Pages 188-189
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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  • [in Japanese]
    Article type: Article
    1973Volume 25Issue 4-6 Pages 189-
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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  • Shiro KITAMURA
    Article type: Article
    1973Volume 25Issue 4-6 Pages 189-191
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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  • [in Japanese]
    Article type: Article
    1973Volume 25Issue 4-6 Pages 192-
    Published: March 30, 1973
    Released on J-STAGE: September 25, 2017
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