Zamia multidentata (Cycadales, Zamiaceae), a new arborescent species of Zamia from Acre, Brazil
Zamia multidentata (Cycadales, Zamiaceae), a new arborescent species of Zamia from Acre, Brazil
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Zamia multidentata（苏铁目，Zamiaceae），来自巴西阿克里的扎米亚树新种
DOI：
10.11646/phytotaxa.598.1.2
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发表时间：
2023
期刊：
影响因子：
1.1
通讯作者：
CALONJE, MICHAEL
中科院分区：
文献类型：
--
作者：
SEGALLA, ROSANE;PIMENTA, RICARDO SOARES;CALONJE, MICHAEL
此处描述和说明的 Zamia multidentata 是巴西阿卡州亚马逊盆地的一个新物种。该新物种与亚马逊物种 Z. hymenophyllidia 和 Z. urep 具有形态相似性，并与之进行比较。细长（6.2厘米）茎茎、长尖尖的强锯齿状椭圆形小叶和明显的正面隆起的纵向折痕，以及具有长花序梗（15厘米以上）的种子球果和扁平的大孢子叶的组合，使新种Zamia multidentata与该属中所有其他已知物种区分开来。
Zamia multidentata is described and illustrated here as a new species from the Amazon basin, state of Acre, Brazil. The new species shares morphological similarities with the Amazonian species Z. hymenophyllidia, and Z. urep, to which it is compared. The combination of slender (to 6.2 cm) caulescent stems, strongly serrulate elliptic leaflets with long acuminate tips and a pronounced adaxially raised longitudinal crease, as well as seed strobili with long peduncles (15 cm+) and flat megasporophylls distinguish the new species Zamia multidentata from all other known species in the genus.