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首页> 外文期刊>植物研究雑誌 >Two New Species of Car ex (Cyperaceae) from the Ogasawara (Bonin) Islands, Japan
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Two New Species of Car ex (Cyperaceae) from the Ogasawara (Bonin) Islands, Japan

机译:日本小gas原(波宁)群岛的车前(莎草科)的两个新种

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摘要

Two new species of the genus Carex L. (Cyperaceae) from the Ogasawara (Bonin) Islands, C. chichijimensis Katsuy. and C. yasuii Katsuy., are described. C. chichijimensis belongs to sect. Graciles Tuck, ex Kiik. and is closely related to C. hattoriana Nakai which is endemic to the Ogasawara Islands, but differs from the latter in having larger, rather glabrous and strongly veined perigynia. C. yasuii belongs to sect. Mitratae Kiik. and resembles C. gracilispica Hayata and C. rhynchachaenium C. B. Clarke from Taiwan in having gourd-like lanceolate, more than 4.5 mm long perigynia, and stoutly stipitate, cylindrically necked achenes. However, C. yasuii is easily distinguished from the latter two species by longer culms, narrowly ovate pistillate scaleswith acuminate and short aristate apex and glabrous perigynia. Both C. chichijimensis and C. yasuii are found only in Chichijima Island.
机译:来自小gas原(波宁)群岛C. chichijimensis Katsuy的Carex L.(莎草科)属的两个新种。描述了C.yasuii和C.yasuii Katsuy。 C. chichijimensis属于这一分支。 Graciles Tuck,前Kiik。并与小gas原群岛特有的C. hattoriana Nakai密切相关,但与后者的不同之处在于其更大,更无毛且有强烈的脉管性股沟。 C. yasuii属于教派。 Mitratae Kiik。与台湾产的C. gracilispica Hayata和C. rhynchachaenium C. B. Clarke相似,具有类似葫芦状的披针形,长于4.5毫米的周生性早搏,粗壮地针刺状,圆柱形颈瘦果。然而,安苏假单胞菌很容易与后两个物种区分开来,因为它们具有较长的茎,狭窄的卵形雌性鳞片,具尖锐的和短的先端和无毛的周生子。 Chichijimensis和C. yasuii都只在Chichijima岛上发现。

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