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FLORAL MORPHOLOGY AND RECOGNITION OF VARIETIES IN CONANDRON RAMONDIOIDES (GESNERIACEAE) FROM JAPAN AND TAIWAN

Published online by Cambridge University Press:  05 January 2005

G. KOKUBUGATA  and
C.-I. PENG
G. KOKUBUGATA
Affiliation:
Tsukuba Botanical Garden, National Science Museum, Tokyo, Amakubo, Tsukuba, Ibaraki 305-0005, Japan. E-mail: gkokubu@kahaku.go.jp
C.-I. PENG
Affiliation:
Institute of Botany, Academia Sinica, Taipei, Nankang, Taipei 115, Taiwan
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Abstract

Comparisons of corolla morphology were made between plants of Conandron ramondioides (Gesneriaceae) from 23 localities in Japan and Taiwan. Lobe-length to tube-length ratios were found to correlate with geographical distribution and support the recognition of two previously described varieties: var. ramondioides in mainland Japan (lobe length less than twice tube length) and var. taiwanensis from Iriomote Island (Japan) and Taiwan (lobe length more than three times tube length). Mitotic chromosomes were also observed but no differences were seen between accessions, all of which had 2n=32.

Keywords

ConandroncorollaGesneriaceaeJapanRyukyu IslandsTaiwantaxonomyvarieties
Type
Research Article
Information
Edinburgh Journal of Botany , Volume 61 , Issue 1 , March 2004 , pp. 21 - 30
Copyright
© 2004, Trustees of the Royal Botanic Garden, Edinburgh

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