〇お知らせ〇
同じ内容をインスタグラム「不二聖心女子学院フィールド日記」(クリックするとインスタグラムのページが開きます)にも投稿しています。より高画質な写真を載せていますのでぜひフォローしてください。

フィールド日記

シダ植物

2026.01.23

フモトシダ

 フモトシダが見られます。コバノイシカグマ科の常緑のシダ植物です。胞子のう群は、葉脈の先端に位置し、カップ状の苞膜に包まれています。

 
"Fumotoshida" ferns are growing. They are evergreen ferns in the Dennstaedtiaceae family. Their sori are found at the tips of their leaf veins and are covered with cup-shaped indusia.

2026.01.09

ミヤマノコギリシダ

ミヤマノコギリシダが見られます。メシダ科の常緑のシダ植物です。胞子のう群は線形で、葉脈に沿ってつきます。似ている仲間が多く、分類が難しい種と言われています。
 
"Miyama-Nokogirishida" fern plants are growing. They are evergreen fern plants in the Athyriaceae family. Their line-shaped sori run along the leaf veins. It is said that they are difficult to identify, as many closely related species look very similar.

2025.12.12

カニクサ

カニクサが胞子葉をつけています。林縁などに見られるカニクサ科のシダ植物です。和名は、つる状に伸びる硬い葉軸をカニを釣るのに利用したことに由来するようです。

"Kanikuza" ferns are now producing fertile fronds. They are ferns in the Lygodiaceae family that typically grow along forest edges. The name comes from the fact that their tough, vine-like leaf axes are used for catching crabs.

2025.07.22

ジュウモンジシダ

ジュウモンジシダが見られます。やや湿った林床などに生える夏緑性(暖地では常緑性)のシダ植物です。和名は、一番根元の羽片が大きくなり、全体が十文字形となることに由来します。

 
"Jumonjishida (ジュウモンジシダ)" fern plants are growing. They are winter-dormant ferns, (though they remain evergreen in warmer areas), that grow on slightly humid forest floors. The name comes from their cross-shape leaves, with the bottom pair of their pinnae being noticeably larger.

2025.04.25

ゼンマイ

 ゼンマイが生えています。草地や樹林内に生える夏緑性のシダ植物です。春の山菜としてよく知られています。葉は胞子葉と栄養葉で分かれており、食用には栄養葉が利用されます。

"Zenmai (ゼンマイ)" plants are sprouting. They are a summergreen fern that grows on grass fields and in forests. Zenmai is known as an edible fern. The shapes of the fertile and sterile fronds are different, and the sterile fronds are used as food.

2025.04.04

ワラビ

 ススキ野原でワラビが出てきています。山菜として知られるシダ植物で、春になると地下にある茎から葉が伸びてきます。山菜としては写真のような開く前の葉を利用します。



"Warabi (ワラビ)" plants are beginning to sprout in the Japanese pampas grass field. They are a fern known as an edible plant. In spring, they extend their leaves from underground stems. As a mountain vegetable, we typically harvest and use the young and unopened leaves like those in the photo.

2025.03.18

ミツデウラボシ

 聖心坂の斜面でミツデウラボシが見られます。明るい斜面や石垣に群生する常緑のシダ植物です。和名は、葉が3裂することに由来しますが、生育状態によって葉は単葉~3裂まで変化に富むようです。

"Mitsude-Uraboshi (ミツデウラボシ)" fern plants are found on the slope on the edge of the "Seishin Zaka." They are the evergreen fern plants that grow on sunny slopes and stone walls. Their Japanese name comes from the fact that their leaves are typically divided into three lobes. However, their leaves can vary greatly- from single to three-lobed- depending on their growing conditions.

2025.03.14

ホシダ

 ヒノキ林の林縁にホシダが見られます。明るい林縁や道端などによく見られる常緑のシダ植物です。よく似た仲間が多いですが、葉の裏面の葉脈が見分けるときのポイントになります。和名は穂シダの意味で、葉の先端が穂状に長く伸びる様子に由来します。



"Hoshida (ホシダ)" fern plants are found on the edge of the Japanese cypress woodland. They are the evergreen fern plants that commonly grow in sunny areas along forest edges and roadsides. There are many relative species of the "Hoshida" ferm, but you can distinguish this one by examining the leaf veins on the back of their leaves. The name comes from the fact that the tips of their leaves grow long, resembling a spike.

2025.03.07

ヘラシダ

 ヒノキ林でヘラシダが見られます。樹林内の湿った崖などに見られる常緑のシダ植物です。葉の裏面には線形の胞子のう群が見られます。葉は切れ込みのない単葉で、和名はこの葉の形をへらに見立てたことに由来します。

"Herashida (ヘラシダ)" plants are found in the Japanese cypress woodland. They are the evergreen fern plants that grow on the moist cliffs in forests. Their linear-shaped sori are on the back of their leaves. Their leaves are undivided and simple. The name comes from the fact that their leaves look like a spatula.

2025.02.28

マメヅタ

 桜の樹皮上でマメヅタが見られます。シダらしくない丸い葉が特徴の常緑のシダ植物です。胞子をつける葉(胞子葉)は普通の葉(栄養葉)と異なり、細長い形をしています。胞子のう群は反り返った胞子葉の裏面全体に広がっています。

"Mamezuta (マメヅタ)" plants can be found on the cherry blossom tree. They are evergreen fern plants with rounded leaves that don't resemble typical ferns. The leaves that produce spores, known as "fertile fronds", differ from those that don't, called sterile fronds, as the former are long and narrow. The sori covers the back of the fertile fronds.