Zamia orinoquiensis (Zamiaceae, Cycadales), a new species from the western Orinoquía region of Colombia
Zamia orinoquiensis (Zamiaceae, Cycadales), a new species from the western Orinoquía region of Colombia
复制标题
Zamia orinoquiensis（Zamiaceae，苏铁目），来自哥伦比亚西部奥里诺夸地区的新种
DOI：
10.11646/phytotaxa.556.2.2
复制
发表时间：
2022
期刊：
影响因子：
1.1
通讯作者：
CANELON BARRAEZ, DANIELA
中科院分区：
文献类型：
--
作者：
CALONJE, MICHAEL;BETANCUR, JULIO;LINDSTROM, ANDERS;LOPEZ-GALLEGO, CRISTINA;CASTRO, JONATAN;CASTRO, CRISTIAN;NIÑO, SANTOS MIGUEL;CANELON BARRAEZ, DANIELA
奥里诺基泽米Zamia orinoquiensis Calonje，Betancur & A.林德海峡，描述了产于哥伦比亚奥里诺基亚西部地区的一新种。该种与Z. muricata Willd.，后者是形态重新定性，说明，并重新界定，包括人口从热带干旱森林和热带潮湿森林的拉腊-法尔孔形成和科迪勒拉拉科斯塔自然地区的委内瑞拉，以及塞拉尼亚德Macuira在瓜希拉，哥伦比亚。Zamia orinoquiensis与Z. muricata的特征是其叶具有较少的革质（相对于纸质）小叶，具有2（相对于4）小叶的真叶，具有棕色至红棕色（相对于奶油色至棕褐色）的花粉孢子叶球，具有较大的小孢子叶，具有更多的小孢子囊，成熟时具有暗棕色至黑色（相对于暗橄榄色绿色至橄榄棕色）的排卵孢子叶球。
Zamia orinoquiensis Calonje, Betancur & A. Lindstr., a new species from the western Orinoquía region of Colombia is described and illustrated. The species is segregated from and compared to Z. muricata Willd., the latter which is morphologically recharacterized, illustrated, and recircumscribed to include populations from tropical dry forest and tropical moist forests in the Lara-Falcón Formation and the Cordillera de la Costa natural regions of Venezuela, as well as the Serranía de Macuira in La Guajira, Colombia. Zamia orinoquiensis is morphologically distinguished from Z. muricata by its leaves bearing fewer, coriaceous (vs. papyraceous) leaflets, eophylls with 2 (vs. 4) leaflets, pollen strobili that are brown to reddish brown (vs. cream to tan) with larger microsporophylls bearing more numerous microsporangia, and ovulate strobili that are dark brown to black (vs. dark olive green to olive brown) at maturity.