TY - JOUR
T1 - Taxonomic studies of Bistorta (Polygonaceae) in the Himalayas and adjacent regions (2). - Bistorta amplexicaulis (D.Don) Greene and its allies, with special reference to the ochreae and leaf sheathes of cauline leaves
AU - Yonekura, Koji
AU - Ohashi, Hiroyoshi
PY - 2002/1/1
Y1 - 2002/1/1
N2 - Bistorta amplexicaulis (D.Don) Greene and its allies are taxonomically revised. Well-developed leaf sheathes of cauline leaves are considered as an apomorphic character in Bistorta, and B. amplexicaulis lacking such leaf sheathes is assumed as a primitive species in the genus. A new variety, B. amplexicaulis subsp. amplexicaulis var. dhorpatanensis Yonek. & H.Ohashi, is described from cenral Nepal. Bistorta amplexicaulis subsp. sinensis (Forbes & Hemsl.) Soják is regarded as a species distinct from B. amplexicaulis and a new name, B. henryi Yonek. & H.Ohashi, is proposed for it. Bistorta sinornontana (Sam.) Miyam. is reduced to a subspecies of B. amplexicaulis and a new combination, B. amplexicaulis subsp. sinomontana (Sam.) Yonek. & H.Ohashi, is proposed.
AB - Bistorta amplexicaulis (D.Don) Greene and its allies are taxonomically revised. Well-developed leaf sheathes of cauline leaves are considered as an apomorphic character in Bistorta, and B. amplexicaulis lacking such leaf sheathes is assumed as a primitive species in the genus. A new variety, B. amplexicaulis subsp. amplexicaulis var. dhorpatanensis Yonek. & H.Ohashi, is described from cenral Nepal. Bistorta amplexicaulis subsp. sinensis (Forbes & Hemsl.) Soják is regarded as a species distinct from B. amplexicaulis and a new name, B. henryi Yonek. & H.Ohashi, is proposed for it. Bistorta sinornontana (Sam.) Miyam. is reduced to a subspecies of B. amplexicaulis and a new combination, B. amplexicaulis subsp. sinomontana (Sam.) Yonek. & H.Ohashi, is proposed.
KW - Bistorta amplexicaulis
KW - Bistorta henryi
KW - Leaf sheath
KW - Ochrea
KW - Taxonomy
UR - http://www.scopus.com/inward/record.url?scp=0036247753&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036247753&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0036247753
VL - 77
SP - 61
EP - 81
JO - Journal of Japanese Botany
JF - Journal of Japanese Botany
SN - 0022-2062
IS - 2
ER -