生活型

herb

形態特徵

• Herbs, about 40 cm in height, glabrous.
• Leaves opposite, usually 4 on apical part of stem; petiole 1-2 cm; leaf blade broadly obovate, 12-15 cm long, 6-8 cm wide, base acute, apex acuminate, margin serrate; lateral veins 6-9 pair terminal, usually dichotomously or racemosely brancheds.
• Spikes peduncle 2.5-4.0 cm; bract 1. Flowers white; stamens 3, base nearly free, central connective 2.0-2.5 mm, with a 2-loculed anther, lateral connective slightly shorter, each with a 1-loculed anther, apex acute, thecae at base of connectives. Ovary ovoid, style absent, stigma capitate.
• Morpholo- gically, <i>C. henryi</i> and <i>C. oldhami</i> are well differen- tiated. Conspicuous styles and obtuse-apex stamens in <i>C. oldhami</i> are distinct from the acute-apex stamens and hardly differentiated style in <i>C. henryi</i>. In addition, individual lobes of the androecium in <i>C. henryi</i> and <i>C. oldhami</i> are completely free from one another and each lobe, whereas differing in genera outline in the two species. In <i>C. henryi</i> all the four sporangia lie closely together, while in <i>C. oldhami</i> the two pairs are slightly separated.

分布

• 台灣 : Estern Taiwan.
• 世界 : China and the Philippines.

引證標本

HUALIEN: Hsiulin Hsiang, Taroko National Park, Chen et al. 1664 (HAST); Mt. Chingshuishan, Ou et al. s. n., (TNM), Yang et al. 13213 (TNM), 13193 (TNM); Lanshan, Sun 232 (TESRI).

引用文獻

• T. Y. Aleck Yang, Tzen-Yuh Chiang, Ching-I Peng and Tsai-Wen Hsu, Taiwania 51(4): 283-286. 2006.