Comparative floral structure and systematics in Apodanthaceae (Rafflesiales)
Comparative floral structure and systematics in Apodanthaceae (Rafflesiales)
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DOI：
10.1007/s00606-003-0090-2
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发表时间：
2004-03-01
影响因子：
1.9
通讯作者：
Endress, PK
中科院分区：
文献类型：
--
作者：
Blarer, A;Nickrent, DL;Endress, PK
对花的形态、解剖学和组织学进行了比较研究，以确定 Apodanthaceae (Rafflesiales) 属的共同特征：Apodanthes、Pilostyles 和 Berlinianche。首次对 Berlinianche 进行了详细研究，并证实了其与 Apodanthaceae 的亲和力。它的内花被器官上有一个以前未描述过的毛垫和无孔的花粉。 Apodanthaceae 成员的共同特征是： 单性花；三个（或四个）交替的二/四或三/六体轮生的鳞片，其中内部的一或两个对应于花被；具有花粉囊的合胞体，通常排列成两个环；由花粉囊两环之间的裂开线打开；联合体上方有大的水泡毛；雌蕊有四个联合的心皮；下位单房卵巢，有四个壁胎盘，胚珠细珠心，倒生，有两个发育良好的珠被，朝向不同方向；蜜腺盘。 Apodanthaceae 与锦葵目有一些特殊的结构特征。
Comparative studies on floral morphology, anatomy, and histology were performed to identify shared features of the genera of Apodanthaceae (Rafflesiales): Apodanthes, Pilostyles, and Berlinianche. Berlinianche was studied for the first time in detail and its affinity to Apodanthaceae was confirmed. It has a previously undescribed hair cushion on the inner perianth organs and inaperturate pollen. Shared features of members of Apodanthaceae are: unisexual flowers; three (or four) alternating di-/tetra- or tri-/hexamerous whorls of scales of which the inner one or two correspond to a perianth; a synandrium with pollen sacs typically arranged in two rings; opening by a dehiscence line between the two rings of pollen sacs; large vesicular hairs above the synandrium; a gynoecium with four united carpels; inferior and unilocular ovaries with four parietal placentae, ovules tenuinucellate, anatropous with two well developed integuments, oriented in various directions; a nectary disk. Apodanthaceae share some special structural features with Malvales.