| 英文摘要 |
On August 22,1971 two of our graduate students, K.S. Hsu (徐國士) and H. J. Chang (張惠珠) found Isoetes growing in a shallow pond on Seven Star Mountain, Chih-hsin-shan (七星山). For many years ,our collectors have searched the ponds and lakes of Taiwan in the hope of finding Isoetes. Since Isoetes japonica A. Br. and I. asiatica Makino grow in Japan, I. sinensis Palmer grows in an eastern coastal province of Mainland China (Kiangsu ), and I. Philippinesis Merr. and Perry grows in the Philippines (Mindanao) it has seemed likely that we might find Isoetes in Taiwan. The pond in which Isoetes was found is near the northern tip of Taiwan in Taipei County. It lies near the top of an extinct volcano at an altitude of about 1000 m. This pond is seldom visited except by a few hunters and mountain climbers. It is small and shallow and during the long dry seasons the water level becomes very low but the peaty soil retains the moisture very well. |
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