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Yoshihisa Suyama            
　Tohoku University
Osaki, Japan
9 articles by this author
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Research Article
Morphological, ecological, and molecular phylogenetic approaches reveal species boundaries and evolutionary history of Goodyera crassifolia (Orchidaceae, Orchidoideae) and its closely related taxa
    Kenji Suetsugu,     Shun K. Hirota, Narumi Nakato,     Yoshihisa Suyama, Shunsuke Serizawa
10.3897/phytokeys.212.91536
 04-11-2022
 Unique: 440 | Total: 652  | Access Period:
 Reprint: € 7,20
 111-134
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Research Article
A new species of Quercus genus (Fagaceae) from Son Tra Peninsula, Central Vietnam
    Nguyen Van Ngoc,     Hoang Thi Binh,     Hoang Thanh Son,     Yoshihisa Suyama,     Tetsukazu Yahara
10.3897/phytokeys.206.85635
 26-08-2022
 Unique: 597 | Total: 839  | Access Period:
 Reprint: € 4,80
 61-73
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Research Article
Molecular phylogeny and taxonomy of the Hydrangea serrata complex (Hydrangeaceae) in western Japan, including a new subspecies of H. acuminata from Yakushima
    Shun K. Hirota,     Tetsukazu Yahara, Kengo Fuse, Hiroyuki Sato, Shuichiro Tagane, Shinji Fujii, Tadashi Minamitani,     Yoshihisa Suyama
10.3897/phytokeys.188.64259
 12-01-2022
 Unique: 1121 | Total: 1725  | Access Period:
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 49-71
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Research Article
A new subspecies of Stellaria alsine (Caryophyllaceae) from Yakushima, Japan
    Tetsukazu Yahara,     Shun K. Hirota, Kengo Fuse, Hiroyuki Sato, Shuichiro Tagane,     Yoshihisa Suyama
10.3897/phytokeys.187.64023
 30-12-2021
 Unique: 933 | Total: 1515  | Access Period:
 Reprint: € 3,60
 177-188
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Research Article
Morphological and molecular evidence reveals three new species of Lithocarpus (Fagaceae) from Bidoup-Nui Ba National Park, Vietnam
    Nguyen Van Ngoc,     Hoang Thi Binh, Ai Nagahama, Shuichiro Tagane, Hironori Toyama, Ayumi Matsuo,     Yoshihisa Suyama,     Tetsukazu Yahara
10.3897/phytokeys.186.69878
 06-12-2021
 Unique: 1056 | Total: 1607  | Access Period:
 Reprint: € 5,90
 73-92
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Research Article
Validation of Hosta alata (Asparagaceae) as a new species and its phylogenetic affinity
    Tetsukazu Yahara,     Shun K. Hirota, Kengo Fuse, Hiroyuki Sato, Shuichiro Tagane,     Yoshihisa Suyama
10.3897/phytokeys.181.64245
 03-09-2021
 Unique: 1092 | Total: 1703  | Access Period:
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 79-93
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Research Article
Cryptocarya kaengkrachanensis, a new species of Lauraceae from Kaeng Krachan National Park, southwest Thailand
    Meng Zhang,     Tetsukazu Yahara, Shuichiro Tagane, Sukid Rueangruea,     Somran Suddee, Etsuko Moritsuka,     Yoshihisa Suyama
10.3897/phytokeys.140.34574
 04-03-2020
 Unique: 1916 | Total: 2834  | Access Period:
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 139-157
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Research Article
A taxonomic study of Quercus langbianensis complex based on morphology and DNA barcodes of classic and next generation sequences
    Hoang Thi Binh,     Nguyen Van Ngoc, Shuichiro Tagane, Hironori Toyama, Keiko Mase, Chika Mitsuyuki,     Joeri Sergej Strijk,     Yoshihisa Suyama,     Tetsukazu Yahara
10.3897/phytokeys.95.21126
 07-02-2018
 Unique: 4875 | Total: 8103  | Access Period:
 Reprint: € 10,50
 37-70
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Research Article
A new species and two new records of Quercus (Fagaceae) from northern Vietnam
    Hoang Thi Binh,     Nguyen Van Ngoc,     Trinh Ngoc Bon, Shuichiro Tagane,     Yoshihisa Suyama,     Tetsukazu Yahara
10.3897/phytokeys.92.21831
 09-01-2018
 Unique: 3575 | Total: 6231  | Access Period:
 Reprint: € 4,80
 1-15
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