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首页> 外文期刊>Adansonia >Revision of Pycnandra subgenus Sebertia (Sapotaceae) and a generic key to the family in New Caledonia
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Revision of Pycnandra subgenus Sebertia (Sapotaceae) and a generic key to the family in New Caledonia

机译:修订了碧萝andra属(Spotaceae)的Sa藤属和新喀里多尼亚家庭的通用钥匙

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摘要

The satellite genus Sebertia (Sapotaceae, Chrysophylloideae) in New Caledonia is here recognized as Pycnandra subgenus Sebertia, a group comprising only two species. Pycnandra canaliculata is described and illustrated as new from the south part of Grande Terre where it occurs in maquis vegetation and humid forest on ultramafic soils, often along watercourses. This species is well known among many biologists but misidentified until now as Sebertia gatopensis, a synonym of P. blanchonii that resides in northwest Grande Terre. In New Caledonia, Pycnandra is the only sapotaceous genus with flowers that lack staminodes and Pycnandra subgenus Sebertia is characterized by small white flowers and fruits lacking stylar remnants. The fruits are characteristic with a scale-like epidermis that is translucent and peels off in P. acuminata versus brown and persistent in P canaliculata. Using field data and applying IUCN criteria, we assess the preliminary threat as Least Concern (LC) for P. acuminata and Vulnerable (VU) for P. canaliculata.
机译:新喀里多尼亚的卫星属伯属(Sapotaceae,Chrysophylloideae)在这里被认为是碧萝Se属的伯属Sebertia,仅由两个物种组成。碧萝can(Pycnandra canaliculata)是从大特雷(Grande Terre)南部描述并图示的,在多基性土壤上,通常沿水道出现在马奎斯植被和潮湿森林中。该物种在许多生物学家中广为人知,但直到现在为止仍被误认为是位于西北大特雷的白斑假单胞菌的代名词。在新喀里多尼亚,碧萝andra是唯一的缺少花蕊的花类属,碧萝andra属的半夏属(Sebertia)的特征是白色的小花和果实,没有柱形残留物。果实具有鳞片状表皮的特征,表皮是半透明的,在P. acuminata中剥落,而在P. canaliculata中则是棕色和持久的。使用现场数据并应用IUCN标准,我们将初步威胁评估为尖锐假单胞菌的最低关注度(LC),并将细小假单胞菌的脆弱性评估为(VU)。

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