Bromeliaceae

…Among monocotyledons, it is related to the Eriocaulaceae and Commelinaceae, but its flower structure is radially symmetrical and is considered to be more primitive. The Bromeliaceae family is divided into three subfamilies based on the characteristics of their fruits and seeds: the Pitcairnioideae, whose fruits are dry (capsules) that dehisce, whose leaves usually have serrated edges, and whose plants grow on land or on rocks; the Tillandsioideae, whose fruits are similar to the Pitcairnioideae but whose seeds have hair-like projections, whose leaf margins usually do not have serrated edges, and whose plants are mostly epiphytic; and the Bromelioideae, whose ovaries are fused together to form a berry, and whose seeds lack projections. …

*Some of the terminology that mentions "Bromeliaceae" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…単子葉植物のなかではホシクサ科，ツユクサ科などに類縁がみとめられているが，花の構造は放射相称でより原始的と考えられる。パイナップル科Bromeliaceaeは果実と種子の特徴から3亜科に分類される。すなわち果実が乾果(蒴果)で裂開し，葉は通常鋸歯を有し，地上生や岩上生のピトカイルニア亜科Pitcairnioideae，前者と果実は似ているが種子に毛状の突起があり，葉縁は通常鋸歯がなく，着生種の多いティランドシア亜科Tillandsioideae，および子房の部分が合着し，液果になり，種子には突起を欠くブロメリア亜科Bromelioideaeである。…

※「Bromeliaceae」について言及している用語解説の一部を掲載しています。

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