A scale-like bract enclosing the pistil in Carex.
Perigynium (pl. perigynia) 苔草属中,包被
蕊
鳞片状
片。
A scale-like bract enclosing the pistil in Carex.
Perigynium (pl. perigynia) 苔草属中,包被
蕊
鳞片状
片。
In the daisy family the numerous bracts which subtend the inflorescence are known as an involucre.
在菊科植物中,片数目多而聚生在花序外围,称为总
。
Rachis and pedicels lanuginose or tomentose; bracts orbicular-ovate, 5–7 mm, both surfaces densely sericeous; calyx adaxially densely sericeous; leaf base subcordate.
轴和花梗被绒毛或者被绒毛;卵片圆
,5-7毫米,
面密被绢毛;正面
花萼是密被绢毛;叶基部近心
。
Bract scale The structure found in large numbers in the female cone of gymnosperms, each bearing an ovuliferous scale in its axil.
在裸子植物球果中大量存在
结构,每个
鳞都包含一个珠鳞。
Utricles convex on both sides; rostra nearly equal to length of kernel; seed free from pericarp; leaves and bracts acicular to spinulose at apex.
胞果面;喙差不多等于珠心
长度;种子离生
果皮;对具微刺
在先端针状
叶和
片。
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