著者
Yuki Wakasugi Hiroshi Azuma (Present Name: Suzuki) Akiyo Naiki Sachiko Nishida
出版者
The Japanese Society for Plant Systematics
雑誌
Acta Phytotaxonomica et Geobotanica (ISSN:13467565)
巻号頁・発行日
vol.68, no.3, pp.129-144, 2017 (Released:2017-11-24)

Geranium yesoense (Geraniaceae) includes several varieties that are mainly discriminated by two morphological features, namely, the degree of leaf incision and the density of spreading hairs on the sepals, but these features have never been objectively quantified. To clarify whether these features can truly discriminate varieties, we analyzed leaf shape and sepal pubescence, and conducted a molecular phylogenetic analysis using nuclear and chloroplast DNA. Our morphological analyses showed some trends in leaf morphology and density of hairs, but failed to identify any groupings that could be clearly distinguished on the basis of these features. Our molecular analysis recognized G. yesoense as a distinct taxon, but did not support the existence of subgroups within the species. We conclude that G. yesoense must be treated as a single taxon with some tendency toward morphological variation depending on locality and habitat.
著者
Akiyo Naiki Takenori Yamamoto Aya Hasegawa Tao Fujiwara Katsuhiro Yoneoka Atsushi Ebihara
出版者
The Japanese Society for Plant Systematics
雑誌
Acta Phytotaxonomica et Geobotanica (ISSN:13467565)
巻号頁・発行日
vol.74, no.2, pp.131-133, 2023-07-31 (Released:2023-09-08)

Hymenophyllum pilosissimum C. Chr. (Hymenophyllaceae), recently discovered on Iriomote Island, is reported for the first time in Japan.
著者
Kenji Suetsugu Akiyo Naiki Yayoi Takeuchi Hironori Toyama Shuichiro Tagane Tetsukazu Yahara
出版者
The Japanese Society for Plant Systematics
雑誌
Acta Phytotaxonomica et Geobotanica (ISSN:13467565)
巻号頁・発行日
vol.68, no.2, pp.123-126, 2017-06-30 (Released:2017-09-12)

Two new localities of the mycoheterotrophic plant, Sciaphila alba (Triuridaceae), are reported and the description of its morphology, in particular on color polymorphism of staminate flowers, based on a new collection from Tatau, Sarawak and from herbarium studies at KYO is updated. Sciaphila alba had been reported only from Lambir Hills National Park, Sarawak, Borneo.