Dryopteris x toyamae Tagawa

Family: Dryopteridaceae オシダ科 > Genus: Dryopteris Adans. オシダ属
GreenList Taxon ID: 896

Accepted name

Dryopteris x toyamae Tagawa

ナガサキシダモドキ

An interspecific hybrid between Dryopteris lacera (Thunb.) Kuntze and Dryopteris sieboldii (Van Houtte ex Mett.) Kuntze.
クマワラビとナガサキシダの種間雑種.
GBIF YList

Basionym and homotypic synonym(s)

Dryopteris x toyamae Tagawa, Acta Phytotax. Geobot. 8(3): 167, 1939 (original as non-nothotaxon). Link Tropicos
≡ Dryopteris sieboldii (van Houtte ex Mett.) Kuntze var. toyamae (Tagawa) Sa.Kurata, Enum. Jap. Pterid. 303, 341, 1961.
≡ Dryopteris enneaphylla (Baker) C.Chr. var. toyamae (Tagawa) W.C.Shieh, J. Sci. Engin. 12: 305, 1975. Tropicos

Type information in the protologue:

Tagawa 2552 (Kyusyu. Prov. Hizen: Mt. Kokuzo-yama to the north of Sonogi, Higasisonogi-gun, cultivated) [[KYO] (holo)]

Digitized type material:

Herbarium & Reg. No.	Type status	Collector & No.	Locality	Coll. date
BM001066090	Isotype	Tagawa M., #2552	Botanic Garden of Kyoto Imp. Univ. Cultivated from Mt. Kokuzô-yama, north of Sonogi, Higasisonogi-gun, Pref. Nagasaki	1939-7-20
P00709805	Isotype	Tagawa M., #2552	Botanic Garden of Kyoto Imp. Univ. Cultivated from Mt. Kokuzô-yama, north of Sonogi, Higasisonogi-gun, Pref. Nagasaki	1939-7-20
US00135356	Isotype	Tagawa M., #2552	Botanic Garden of Kyoto Imp. Univ. Cultivated from Mt. Kokuzô-yama, north of Sonogi, Higasisonogi-gun, Pref. Nagasaki	1939-7-20

Information on ploidy level and reproductive mode

Chromosome number	Ploidy level	Reproductive mode	Locality	Reference
(2n=ca.123)	3x	irr	Kurobaruyama, Kumamoto Pref.	Kurita 1965a (J. Jap. Bot. 40: 234-244)
(2n=ca.123)	3x	irr	Mitsuishiyama, Chiba Pref.	Kurita 1967a (Ann. Rep. Foreign Students' Coll., Chiba Univ. 2: 57-61)
(2n=123)	3x	irr	Cultivated in Botanical Garden, Univ. of Tokyo	Mitui 1968 (Sci. Rep. Tokyo Kyoiku Daigaku, Sec. B 13: 285-333)
(2n=123)	3x	irr	Kurobaruyama, Kumamoto Pref.	Hirabayashi 1970a (J. Jap. Bot. 45: 11-19)