marginal cell meaning in English

边缘细胞在木质线中之上下边缘之细胞于纵切面可见之
缘室
缘细胞

Ray width 1 - 4 cells ; body ray cells procumbent with 1 - 4 rows of upright and / or square marginal cells
射线多列和单列射线组成，两种大小， 14细胞宽。
Ray width 1 - 4 cells ; body ray cells procumbent with 1 - 9 rows of upright and / or square marginal cells . ericaceoxylon cf
射线宽14细胞；多列射线的中部多为横卧细胞，边缘有l 9行直立和或方形细胞。
Ray width 1 - 6 cells ; body ray cells procumbent with mostly 2 - 4 rows of upright and / or sqaure marginal cells . ericaceoxylon hymenanthesoides sp
多列射线的中部多为横卧细胞，边缘有1 - 4 ( 6 )行直立和或方形细胞。