英文摘要 |
Lilium formosanum Wallace is endemic to Taiwan, where it is considered one of the most special native bulb plants. This species has numerous morphological variants; therefore, their interspecific taxonomy and intraspecific varieties remain debatable. Depending on its habitation environment, the plant height of this species can vary by 10 times or more. The aspect ratio of its leaves can range from 18 to 20 and this widely recognized characteristic is used for discriminating between L. formosanum and L. longiflorum. L. formosanum is distributed on glassy slopes, roadsides, and rocks all around Taiwan at all altitudes—lowlands to 3500-m-high mountains. The seed of L. formosanum propagates through epigeous germination, which facilitates the process of rapid seedling formation to flowering within 1 year. The rosette seedling bears multiple bulb leaves, sustains at high temperatures, and demonstrates growth during summer. The stem of the rosette seedling elongates in cool climates and then flowers in spring or summer. Due to its self-compatibility and seed abundance, L. formosanum was crossed with L. longiflorum to breed the cultivar L. x formolongi for cut flower production. Thus, L. formosanum has unique growth characteristics and high environmental adaptability compared with commercial lily cultivars and thus warrants further investigation and development. |