Loxogramme

...An epiphytic evergreen perennial fern of the Polypodiaceae family. Its name comes from its spatula-shaped, simple leaves. The rhizome is thin and somewhat long, and produces sparse leaves. The leaf blade is oblanceolate, 15-40 cm long, and gradually points to a point. The lower part of the leaf surface flows to the midrib, and the petiole is very short and black-brown in color. There are pale gray scales at the base. The leaves are somewhat thick and leathery, and although the veins are not visible on the surface, they are joined together in a net shape and contain sparse free veins. The sporangia are linear and form an acute angle of 15-25 degrees with the midrib. There is no insula. ...

*Some of the terminology explanations that mention "Loxogramme" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…ウラボシ科の着生常緑多年生シダ植物。単葉でへら形の葉形から，この名がある。根茎は細く，やや長くはい，まばらに葉を出す。葉身は倒披針形で，長さ15～40cm，先端は漸尖する。葉面の下部は中肋に流れ，葉柄はごく短く，黒褐色に色づく。基部に淡灰色の鱗片がある。葉はやや厚く，革質に近くて，葉脈は表面では見えないが，網状に結合し，まばらに遊離脈が含まれる。胞子囊群は線形で，中肋と15～25度の鋭角でつく。包膜はない。…

※「Loxogramme」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。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報