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Journal of Plant Research | 1990

The systematic position ofAsplenium cardiophyllum (Aspleniaceae)

Masahiro Kato; Narumi Nakato; Shinobu Akiyama; Kunio Iwatsuki

Asplenium cardiophyllum is a morphologically unusual species with simple leaves and anastomosing venation, and is often placed in the segregate genusBoniniella. To determine its systematic position, character comparisons were made of vascular anatomy, raphides in leaf epidermis, chromosome number and perispore of this species and those ofAsplenium sect.Hymenasplenium. Asplenium cardiophyllum conforms with sect.Hymenasplenium in its dorsiventral dictyostele, the presence of raphides, a chromosome number of 2n=156 (x=39), and lophate peristore with spinulate projections on the lumina. We therefore propose to includeA. cardiophyllum in that section.


Journal of Plant Research | 1985

The branching of the inflorescence and vegetative shoot and taxonomy of the genusKummerowia (Leguminosae)

Shinobu Akiyama; Hideaki Ohba

A study of the branching of the inflorescence and the vegetative shoot of the genusKummerowia, consisting ofK. stipulacea (Maxim.) Makino andK. striata (Thunb.) Schindler, has led to the following conclusions: (1) the inflorescences of both species are reduced compound cymes, (2) the branching system of the inflorescence ofKummerowia is not clearly different from that of the vegetative shoot and there are some transitional forms between both systems, and (3) the inflorescence ofKummerowia is different from the racemose inflorescences ofLespedeza andCampylotropis. Based on the differences found in the branching system of the inflorescence,Kummerowia is distinctly separated fromLespedeza andCampylotropis and is more correctly treated as a distinct genus from the latter two.


Archive | 2004

Systematics of Himalayan Seed Plants

Shinobu Akiyama; Hideaki Ohba

Many national and international projects to prepare floristic treatments for Asian countries are in progress throughout the world. Amongst these are a number of projects focusing on the Himalayan region. The Flora of Bhutan, of which the first part was published in 1983, was completed when volume 3, part 2, dealing with the Orchidaceae, was published in 2002. The completion of the Flora of Bhutan marked the start of a new epoch in floristic research on the Himalayan region following the last major work for the area, Hooker’s The Flora of British India (1872–1897). This major achievement was brought about by the late Andrew J. C. Grierson and his successor, David G. Long, of the Royal Botanic Garden Edinburgh, and other botanists. In Sikkim, now a part of India, a flora project was begun by the Botanical Survey of India after the establishment of the Sikkim Himalayan Circle of the Botanical Survey of India at Gangtok in 1979. In 1996, the first volume of that flora was published. For the western Himalaya, Karakorum and Kashmir have been treated as a part of the Flora of Pakistan compiled first by E. Nasir and S.I. Ali, and later by S.I. Ali and M. Qaiser since 1970.


Journal of Plant Research | 2004

Flavonoids in translucent bracts of the Himalayan Rheum nobile (Polygonaceae) as ultraviolet shields

Tsukasa Iwashina; Yuji Omori; Junichi Kitajima; Shinobu Akiyama; Toshisada Suzuki; Hideaki Ohba


Botanical Journal of the Linnean Society | 1992

Chromosome evolution in Himalayan Impatiens (Balsaminaceae)

Shinobu Akiyama; Michio Wakabayashi; Hideaki Ohba


Natural Product Communications | 2015

Foliar flavonoids from Tanacetum vulgare var. boreale and their geographical variation

Ayumi Uehara; Shinobu Akiyama; Tsukasa Iwashina


Bulletin of the National Museum of Nature and Science. Series B. Botany | 2010

Four new species of Himalayan Prunus subgenus Cerasus (Rosaceae-Prunoideae).

Hideaki Ohba; Shinobu Akiyama


Bulletin of the National Museum of Nature and Science. Series B. Botany | 2015

ネパール産ツリフネソウ属の研究(1)Impatiens amplexicaulis Edgew.とI. chungtienensis Y. L. Chen

Shinobu Akiyama; Hideaki Ohba


Bulletin of the National Museum of Nature and Science. Series B. Botany | 2015

ネパール産ツリフネソウ属の研究(2)Impatiens jurpia, I. urticifoliaおよび近縁種

Shinobu Akiyama; Hideaki Ohba


Archive | 2014

Observations on Variation in the Ornamental Flowers of Hydrangea macrophylla (Thunb.) Ser. (Hydrangeaceae)

Hideaki Ohba; Shinobu Akiyama

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Ayumi Uehara

Tokyo University of Agriculture and Technology

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Junichi Kitajima

Showa Pharmaceutical University

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Michio Wakabayashi

Tokyo Metropolitan University

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